Section L - LetLok by PIRTEK

LET-LOK速 (IMPERIAL)

Product Code Conventions Imperial Metric

4 32

Index to Let-Lok速 Imperial Fittings

32 - 33

Index to Let-Lok速 Metric Fittings

4-5

Installation Instructions

TUBE FITTINGS

About Twin Ferrule Compression Fittings

Page

Index to Ham-Let速 Valves

Alphanumeric Index

A Z

This page is part of a complete catalogue containing technical and safety data. All data must be reviewed when selecting a product. Pirtek reserve the right to change technical specifications without notice Rev. 0

LET-LOK® DESCRIPTION 2

LET-LOK

TWIN FERRULE TUBE COMPRESSION FITTINGS THE HAM-LET GROUP The HAM-LET Group has produced high quality tube and pipe fittings in various materials for high pressure applications since its establishment in 1950. For more than five decades, through tremendous efforts in research and development, HAM-LET has gained an excellent reputation as a leading manufacturer of high pressure instrumentation products. The LET-LOK® range of connectors has been developed to fill the rapidly increasing demand for tube fittings suitable for high pressure use in environments such as petrochemical, fluid, power, nuclear, electronic, as well as other major industries. LET-LOK® tube fittings have been carefully manufactured and tested to withstand the demands of high performance tube fittings, such as high pressure, impulse, vibration, vacuum and temperature. These tube fittings are manufactured to exacting tolerances using the most modern and advanced computerised automation. One of the main conditions required to producing these precision machined fittings is the maintenance of stringent quality control in conjunction with skilled craftsmen.

Tube

HOW LET-LOK® WORKS The LET-LOK® tube fitting is a mechanism used for both sealing and gripping tubing. The mechanical advantage and geometry of the fitting produces a leak-tight assembly. To assemble, simply insert the tube into the complete assembly until the tube bottoms-out against the internal shoulder of the fitting body. The two ferrules are driven forward between the nut and fitting body using the mechanical force created by rotating the nut clockwise. The back ferrule (3) is driven against the tapered rear of the front ferrule (2) and the front ferrule is driven by force into the tapered mouth of the body. The rear ferrule is swaged radially inwards on the tube while lifting the front ferrule out to form a full faced seal on the tapered surface of the body. The 1¼ turns of the nut from the finger tight position assure consistent drive of the sealing ferrules. This ensures an effective seal against high pressure as well as ultra high vacuum conditions.

Nut

Body

Front Ferrule

Back Ferrule

INSTALLATION INSTRUCTIONS Tube Handling Scratches on the tube might cause leaks. It is, therefore, important to handle the tube carefully to reduce the risk of leaks.

1 0

0 3/4

1/4

1/2

Figure A

11/4

3/4

Some precautions to be taken: 1. Tubes must not be dragged on the floor. 2. Tubes must not be dragged out of a tubing rack, especially in case of large OD tubes. Copper Tubing If using copper tubing from a roll, hold the end of the tube and roll the roll outwards whilst allowing the tubing to rest on a flat surface. Inspection Gauge Use: This is a “No-Go” gauge and should be used as follows: 1. Make up the fitting according to the following instructions: 1/4 inch (6mm), 3/8 inch, 1/2 inch (12mm) - make up 1.1/4 turns from finger tight. Inspection Gauge Product Code IIGAPGAUGE-0408

1/4

1/2

Figure B

Gauge does not enter gap...Good.

Reassembly Instructions Let-lok connections may be disconnected and remade repeatedly, without loss of leaktight seal. 1. Before disconnecting, mark the position of the nut in relation to the fitting body. 2. To reassemble, use a wrench to tighten nut to original position. 3. Tighten slightly with wrench until a slight rise in torque is felt.

INSTALLATION

LET-LOK® fittings as supplied are fully assembled, finger tight. Disassembly before use can allow the entry of dirt or other particles. 1. Insert the tubing into the Let-Lok® fitting. Check that the tube rests firmly on the fitting shoulder and that the nut is finger tight. At this point it is recommended that a scribe mark be drawn on the hex of the nut extending onto the fitting body. This mark will serve as an indicator for the starting point and proper pull-up. 2. Tighten the nut. (see Fig. A & B) • 1¼ turns of the nut is required for 1/4” (6 mm) and larger. • ¾ turns of the nut is required for 3/16” (4 mm) and smaller

LET-LOK®

LET-LOK

Gauge enters gap...No good, tighten further

2. Check gap between nut and body, using the appropriate sized gauge. If the gauge slides easily into the gap, tighten the nut further until gauge can not enter the gap. 3. The gauge should only be used on initial fitting make up. 4. The gauge is suited only to use only with 1/4 inch (6 mm), 3/8 inch, 1/2 inch (12 mm) tube for make up to 1¼ turns.

Tube Cutting Two different methods can be used to cut tubes: • Tube Cutter • Hacksaw 1. Tube Cutter To attain a leak free connection, the tubing must be cut squarely. A good quality tube cutter with the appropriate blade for the tubing material is recommended. Do not try to reduce the time of cutting by taking deep cuts with each turn of the cutter. This will work harden the tube. The end of the tube must be deburred to avoid damage to the fitting and to ensure that the tube reaches the bottom of the fitting. 2. Hacksaw Cutting In order to cut the tube with a hacksaw and get square ends, the tube must be cut with guide blocks. This method of cutting necessitates deburring of the tube ends.

For Safety In applications where severe conditions and high pressure exist, we recommend the following installation procedures: 1. Check that the nut is finger tight. 2. Insert the tube (up to the shoulder). 3. Rotate the nut with a wrench until the tube does not rotate freely 4. Mark position of the nut. 5. Rotate the nut 11/4 turns. This method ensures that even if the tube O.D. is at the minimum tolerance, the ferrules will be in contact with the tube for the full 1¼ rotation.

Warning Do not hold the tube in a vice in the place where it will be inserted into the fitting (the vice will leave a mark on the tube that may cause leaks, and might cause ovality).

LET-LOK® (IMPERIAL) PICTORIAL INDEX 4

LET-LOK

TWIN FERRULE TUBE COMPRESSION FITTINGS PRODUCT CODE EXAMPLE

S = Stainless Steel B = Brass T = Teflon

768

Signifies Fitting Industrial Type Instrumentation (Male Connector)

Material

None = Tube all ends B = BSPT Thread P = BSPP Thread

Product Codes are as listed in this Catalogue. The Codes allow easy identification of the type, configuration, and material of the fittings, as well as the applicable tube and thread sizes. Fittings are supplied fully assembled. The Tube O.D. is always referenced first, followed by the pipe size. In the event both connections are tubing, specify the largest size first. Consult the Table below for assistance. Tube OD

-0101 -0102 -0201 -0202 -0204 -0302 -0304 -0401 -0402 -0404 -0406 -0408 -0412 -0502 -0504 -0506 -0508 -0602 -0604 -0606 -0608 -0612 -0616 -0802 -0804 -0806 -0808 -0812 -0816 -1004 -1006 -1008 -1012 -1208 -1212 -1612 -1616

1/16 1/16 1/8 1/8 1/8 3/16 3/16 1/4 1/4 1/4 1/4 1/4 1/4 5/16 5/16 5/16 5/16 3/8 3/8 3/8 3/8 3/8 3/8 1/2 1/2 1/2 1/2 1/2 1/2 5/8 5/8 5/8 5/8 3/4 3/4 1 1

Pipe Thread or Tube OD 1/16 1/8 1/16 1/8 1/4 1/8 1/4 1/16 1/8 1/4 3/8 1/2 3/4 1/8 1/4 3/8 1/2 1/8 1/4 3/8 1/2 3/4 1 1/8 1/4 3/8 1/2 3/4 1 1/4 3/8 1/2 3/4 1/2 3/4 3/4 1

Tube O.D. (as Dash Size) is always first to be described

Thread Dash Size (number of 1/16ths of an inch)

N = NPT Thread

J = JIC / AN Thread

Size Combination

End Connection

II768BB-0406 Tube to Male Brass Connector to suit 1/4” Tube and with 3/8” BSPT Thread

ABOUT LET-LOK How it Works

INSTALLATION

TUBE DATA

Tube Insert

Nut

COMPONENTS

760I

Back Ferrule

760

Front Ferrule

760

761

Ferrule Set

760

TWIN FERRULE COMPRESSION FITTINGS Straight Tube Union

Reducing Union

762

763

Straight Bulkhead Union

Union Elbow

Union Tee

TUBE TO TUBE UNION

Reducing Union Tee

4-way Cross Piece

774

Port Connector

765

Reducing Port Connector

764

Tube Reducer

764R

7102

767P

Male Connector

Male Pipe Weld Connector

768

768N

767M

Male Connector SAE

Male Elbow

768OB

769

767T

Male Run Tee

TUBE TO MALE PIPE

Male Branch Tee

16-17

Tube to Male Pipe Adaptor

Bulkhead Male Connector

20-21

771

Female Connector

Female Elbow

766

770

PICTORIAL INDEX

TUBE STUB CONNECTOR

LET-LOK速 (IMPERIAL)

LET-LOK

TUBE TO FEMALE PIPE 772

Female Run Tee

739M

Female Branch Tee

774M

Tube to Female Pipe Adaptor

24-25

Bulkhead Female Connector

LET-LOK to JIC / AN Male Adaptor

TUBE TO JIC / AN FLARE 771F

772F

LET-LOK to JIC / AN Male Bulkhead

739F

Cap

774F

Plug

762FL

Tube to Hose Connector

CAP, PLUG & HOSETAIL 774FL

7108

7121

130LT

METRIC TUBE FITTINGS & VALVES BEGIN PAGE L 32

LET-LOK®

LET-LOK TUBE DATA

Annealed 304 or 316 stainless steel tubing complying with ASTM A213, A269 or equivalent specifications. Based on ultimate tensile strength of 75,000 psi (5167 bar). For metal temperatures from –20°F to 100°F (-29°C to 37°C) Suggested ordering information: Fully annealed high quality (Type 304 or 316) stainless steel hydraulic tubing ASTM A269 or A213 or equivalent, seamless or welded and drawn with a hardness of Rb80 or less. Tubing should be without scratches and suitable for flaring and bending

Table 1: STAINLESS STEEL TUBING WALL THICKNESS OF TUBE IN INCHES (mm) Tubing O.D. mm

ins.

0.01 (0.25)

0.012 (0.30)

0.014 (0.35)

0.016 (0.40)

0.02 (0.50)

1/16"

5600

6860

8150

9480

12080

0.028 (0.71)

0.035 (0.89)

0.049 (1.24)

0.065 (1.65)

0.083 (2.10)

0.095 (2.41)

0.109 (2.77)

0.12 (3.05)

0.134 (3.40)

0.156 (3.96)

1/8"

8550

10950

3/16"

5500

7100

10300

1/4"

4100

5200

7600

10300

5/16"

4100

5900

8100

3/8"

3350

4850

6550

1/2"

2650

3750

5150

6750

5/8"

2950

4050

5250

6050

3/4"

2450

3350

4250

4950

5850

7/8"

2050

2850

3650

4250

4850

2400

3100

3600

4200

4700

2400

2800

3300

3600

4100

4900

2300

2700

3000

3400

4000

Working pressure (psig) for seamless tubing. Multiply pressure rating by 0.80 for single welded tubing Multiply pressure rating by 0.85 for double welded tubing

1¼" 1½"

0.188 (4.77)

4900

TUBE DATA

Table 2: COPPER TUBING WALL THICKNESS OF TUBE IN INCHES (mm) Annealed copper seamless tubing complying with ASTM B68 and ASTM B75 specified in temper designation 060. Based on ultimate tensile strength 30,000 psi (2067 bar). For metal temperatures from -20°F to 100°F (-29°C to 37°C) Suggested ordering information: High quality soft annealed seamless copper tubing ASTM B75 or equivalent

To determine allowable pressure at higher temperatures, multiply allowable working pressure from Tables 1 & 2 by the factor shown in Table 3 For example: The allowable pressure for Type 316 stainless steel, size 1/2” OD x .049” wall at 800°F (427°C) would be equivalent to 3750 psi x 0.79 = 2962.5 psi

Tubing O.D. ins.

0.028 (0.71)

0.035 (0.89)

1/8"

2700

3600

3/16"

1800

2300

3400

1/4"

1300

1600

2500

3500

5/16"

1300

1900

2700

3/8"

1000

1600

2200

1/2"

800

1100

1600

2100

5/8"

900

1200

1600

1900

3/4"

700

1000

1300

1500

1800

7/8"

600

800

1100

1300

1500

500

700

900

1100

1300

0.049 (1.24)

0.065 (1.65)

0.83 (2.10)

0.095 (2.41)

0.109 (2.77)

0.120 (3.05)

1500

Table 3: FACTORS USED TO DETERMINE ALLOWABLE PRESSURE AT ELEVATED TEMPERATURES Deg °F

Deg °C

A.I.S.I. 316

200

Copper 0.80

400

204

0.96

0.50

600

316

0.85

800

427

0.79

1000

538

0.76

1200

649

0.37

Table 4: GAS APPLICATION TUBING Tubing O.D.

Gases are characterised by small molecules which can escape through the smallest leak path. For gas applications, it is therefore recommended to select tubing with greater wall thickness. Table 4 shows the recommended wall thicknesses for greater safety and efficiency

Min. Nominal Wall Thickness

inch

ins.

1/8"

0.028”

0.71

3/16"

0.028”

0.71

1/4"

0.028”

0.71

5/16"

0.035”

0.89

3/8"

0.035”

0.89

1/2"

0.049”

1.24

5/8"

0.065”

1.65

3/4"

0.065”

1.65

7/8"

0.083”

2.10

0.083”

2.10

WARNING! For Your Safety The system designer and user have the sole responsibility to select products suitable for their special application requirements to ensure the proper installation, operation and maintenance of the product. Application details, material compatibility and product ratings should all be considered in the individual selection. Improper selection or use of products can cause property damage or personal injury.

LET-LOK® (IMPERIAL)

LET-LOK

PRESSURE RATINGS PRESSURE RATINGS Pressure Ratings for HAM-LET Tube Fittings

Pressure Ratings for End Fittings per SAE J1926 (LOB) Surrounding Temperature

To ensure leak-tight systems, it is important to carefully select high-quality tubing (see page 6 - Allowable working pressure).

Pressure ratings are based on SAE J1926 at surrounding temperature.

Pipe End Thread (NPT and ISO 7) Pressure Ratings Allowable pressure for male and female tapered pipe thread ends, Stainless Steel 316 and Brass.

TABLE 6: PRESSURE RATINGS NPT / ISO Pipe Size

TABLE 7: PRESSURE RATINGS

Stainless Steel 316

Female

inch

Male

Female

psi

1/16

11000

6700

5500

3300

1/8

10000

6500

5000

3200

1/4

8000

6600

4000

3300

3/8

7800

5300

3900

2600

1/2

7700

4900

3800

2400

3/4

7300

4600

3600

2300

5300

4400

2600

2200

1 1/4

6000

5000

3000

2500

1 1/2

5000

4600

2500

2300

3900

1900

Note: If pressure on LET-LOK end is higher than the pipe side, then pipe side needs heavier wall thickness of tapered pipe thread side.

Stainless Steel 316

(LOB) SAE J1926 Thread Size

Nonpositionable

inch

Positionable psi

5/16 - 24

4568

7/16 - 20

4568

1/2 - 20

4568

9/16 - 18

4568

3626

3/4 - 16

4568

3626

7/8 - 14

3626

2900

1 1/16 - 12

3626

2900

1 3/16 - 12

2900

2320

1 5/16 - 12

2900

2320

1 5/8 - 12

2320

1813

1 7/8 - 12

2320

1813

2 1/2 - 12

1813

1450

Note: 37° FLARE (AN) and LO ends can have lower pressure

PRESSURE RATINGS

Male

Brass

O-Seal Pressure Ratings (page 19) to 3000 psi.

Positionable, ISO/BSP Parallel Thread (G) Pressure Ratings Pressure ratings are at surrounding temperature. TABLE 8: PRESSURE RATINGS (G) ISO / BSPP Male Pipe size

Stainless Steel 316

inch

psi

1/8

4568

1/4

4568

3/8

4568

1/2

2320

COMPONENTS TUBE INSERT 760I

760I Tube Insert (inch) Product Code

Product Code

Stainless Steel

Brass *

Tube O.D.

Tube I.D.

Minimum opening

ins

II760IB-0302 *

3/16

4.76

1/8

3.17

0.09

2.28

II760IS-0402

II760IB-0402 *

1/4

6.35

1/8

3.17

0.09

2.28

II760IB-0417 *

1/4

6.35

0.17

4.32

0.11

2.79

II760IB-0403 *

1/4

6.35

3/16

4.76

0.14

3.55

II760IS-0502

II760IB-0502 *

5/16

7.93

1/8

3.17

0.09

2.28

II760IS-0503

II760IB-0503 *

5/16

7.93

3/16

4.76

0.12

3.05

II760IS-0504

II760IB-0504 *

5/16

7.93

1/4

6.35

0.19

9.52

II760IS-0603

II760IB-0603 *

3/8

9.52

3/16

4.76

0.12

3.05

II760IS-0604

II760IB-0604 *

3/8

9.52

1/4

6.35

0.19

9.52

II760IS-0804

II760IB-0804 *

1/2

12.7

1/4

6.35

0.19

9.52

II760IS-0806

II760IB-0806 *

1/2

12.7

3/8

9.52

0.31

7.87

II760IS-1006

II760IB-1006 *

5/8

15.87

3/8

9.52

0.31

7.87

II760IS-1008

II760IB-1008 *

5/8

15.87

1/2

12.7

0.44

11.17

II760IS-1208

II760IB-1208 *

3/4

19.05

1/2

12.7

0.44

11.17

II760IS-1210

II760IB-1210 *

3/4

19.05

5/8

15.87

0.56

14.22

25.4

3/4

19.05

0.69

17.52

II760IS-0417

II760IS-0403

II760IS-1612 II760IB-1612 * * Indent items available to order

NUT 761

COMPONENTS

ins II760IS-0302

LET-LOK速 (IMPERIAL)

LET-LOK

761 Nut (inch)

Product Code

Stainless Steel

Brass

Tube O.D.

Wrench Flat

ins

1/16

1.58

5/16

7.93

.31

7.87

1/8

3.17

7/16

11.11

.47

11.93

3/16

4.76

1/2

12.70

.47

11.93

1/4

6.35

9/16

14.28

.50

12.70

II761B-05 *

5/16

7.93

5/8

15.87

.53

13.46

II761B-06

3/8

9.52

11/16

17.46

.56

14.22

II761S-08

II761B-08

1/2

12.7

7/8

22.22

.69

17.52

II761S-10

II761B-10 *

5/8

15.87

25.4

.69

17.52

II761S-12

II761B-12

3/4

19.05

1.1/8

28.57

.69

17.52

25.40

1.1/2

38.10

.81

20.57

II761S-01 *

II761B-01 *

II761S-02

II761B-02

II761S-03 *

II761B-03

II761S-04

II761B-04

II761S-05 II761S-06

II761S-16 II761B-16 * Indent items available to order W

LET-LOK速 (IMPERIAL)

LET-LOK

COMPONENTS FERRULE SET 760

Product Code

Stainless Steel

Brass

Teflon

II760S-02

II760B-02

II760T-02 *

II760S-03

II760B-03

II760T-03 *

II760S-04

II760B-04

II760T-04

II760S-05

II760B-05

II760T-05 *

II760S-06

II760B-06

II760T-06

II760S-08

II760B-08

II760T-08

II760S-10

II760B-10 *

II760T-10 *

II760S-12

II760B-12

II760T-12

II760S-16

II760B-16

II760T-16

760 Ferrule (inch) Stick Sets A ferrule set contains one front ferrule and one back ferrule x 10 sets housed on a single stick. The stick provides a safe and easy method of storage as well as an easy and correct way to slide off a ferrule set directly onto tubing. The risk of damage to individual ferrules is greatly reduced, and assembly errors avoided through their use. Teflon ferrules are for use with glass or polycarbonate tube applications.

* Indent items available to order

Included in Stainless Steel Set

COMPONENTS

FRONT FERRULE

Included in

Brass Set

Teflon Set

760 Front Ferrule (inch) A ins

A mm

II760S-02

II760B-02

II760T-02

1/8

3.17

II760S-03

II760B-03

II760T-03

3/16

4.76

II760S-04

II760B-04

II760T-04

1/4

6.35

II760S-05

II760B-05

II760T-05

5/16

7.93

II760S-06

II760B-06

II760T-06

3/8

9.52

II760S-08

II760B-08

II760T-08

1/2

12.7

II760S-10

II760B-10

II760T-10

5/8

15.87

II760S-12

II760B-12

II760T-12

3/4

19.05

II760S-16

II760B-16

II760T-16

25.40

Please note that front and back ferrules are supplied only as part of the sets detailed above. Information is for reference purposes only

BACK FERRULE

Included in Stainless Steel Set

II760S-02

Included in

Brass Set

Teflon Set

II760B-02

760 Back Ferrule (inch) A ins

A mm

II760T-02

1/8

3.17

3/16

4.76

II760S-03

II760B-03

II760T-03

II760S-04

II760B-04

II760T-04

1/4

6.35 7.93 9.52

II760S-05

II760B-05

II760T-05

5/16

II760S-06

II760B-06

II760T-06

3/8

II760S-08

II760B-08

II760T-08

1/2

12.7

II760S-10

II760B-10

II760T-10

5/8

15.87

II760S-12

II760B-12

II760T-12

3/4

19.05

II760S-16

II760B-16

II760T-16

25.40

Please note that front and back ferrules are supplied only as part of the sets detailed above. Information is for reference purposes only

TUBE TO TUBE UNIONS UNION 762

Stainless Steel

Brass

ins

II762S-02

II762B-02

1/8

3.17

.09

2.28

7/16

11.11

.88

22.35

1.40

35.56

.50

12.7

II762S-03

II762B-03

3/16

4.76

.12

3.04

7/16

11.11

.95

24.13

1.47

37.33

.54

13.7

II762B-04

1/4

6.35

.19

4.82

1/2

12.70

1.03

26.16

1.61

40.89

.60

15.2

II762S-05

II762B-05

5/16

7.93

.25

6.35

9/16

14.28

1.11

28.20

1.69

42.90

.64

16.3

II762S-06

II762B-06

3/8

9.52

.28

7.11

5/8

15.87

1.19

30.22

1.77

44.95

.66

16.8

II762S-08

II762B-08

1/2

12.70

.41

10.41

13/16

20.63

1.22

30.98

2.02

51.30

.90

22.9

II762S-10 I

II762B-10

5/8

15.87

.50

12.70

15/16

23.81

1.25

31.75

2.05

52.07

.96

24.4

II762S-12

II762B-12

3/4

19.05

.62

15.74 1.1/16 26.98

1.31

33.27

2.11

53.59

.96

24.4

II762S-16

II762B-16

25.40

.88

22.35

1.59

40.38

2.55

64.77

1.23

31.3

Minimum opening

Wrench Flat

1.3/8

34.92

TUBE TO TUBE UNIONS

REDUCING UNION 763

A Tube O.D.

N W

Product Code

II762S-04

762 Union Tube (inch) to Tube (inch)

Product Code

I L

Product Code Product Code

763 Reducing Union Tube (inch) to Tube (inch) A

Tube O.D.

Minimum opening

Wrench Flat

LET-LOK速 (IMPERIAL)

LET-LOK

Stainless Steel

Brass

ins

II763S-0402

II763B-0402

1/4

6.4

1/8

3.2

.09

2.3

1/2

12.7

.97

24.6

1.52

38.6

.60

15.2

.50

12.7

II763S-0604

II763B-0604

3/8

9.5

1/4

6.4

.19

4.8

5/8

15.9

1.12

28.4

1.70

43.2

.66

16.8

.60

15.2

II763S-0804

II763B-0804

1/2

12.7

1/4

6.4

.19

4.8

13/16

20.6

1.16

29.5

1.85

47.0

.90

22.9

.60

15.2

II763S-0806

II763B-0806

1/2

12.7

3/8

9.5

.28

7.1

13/16

20.6

1.22

31.0

1.91

48.5

.90

22.9

.66

16.8

II763S-1006

II763B-1006

5/8

15.9

3/8

9.5

.28

7.1

15/16

23.8

1.25

31.8

1.94

49.3

.96

24.4

.66

16.8

II763S-1206

II763B-1206

3/4

19.1

3/8

9.5

.28

7.1

1.1/16

27.0

1.31

33.3

2.00

50.8

.96

24.4

.66

16.8

II763S-1208

II763B-1208

3/4

19.1

1/2

12.7

.41

10.4

1.1/16

27.0

1.31

33.3

2.11

53.6

.96

24.4

.90

22.9

BULKHEAD UNION 774

N N1 W

I L

Product Code

Stainless Steel

Brass

774 Bulkhead Union Tube (inch) to Tube (inch) A

Tube O.D.

Minimum opening

Wrench Flat

Panel Hole Drill Size

Max. Panel Thickness

ins

II774S-04

II774B-04

1/4

6.35

.19

4.8

5/8

15.9

1.69

42.9

1.03

26.2

2.27

57.7

1.32

33.5

0.6

15.2

.45

11.5

.40

10.2

II774S-06

II774B-06

3/8

9.52

.28

7.1

3/4

19.1

1.87

47.5

1.16

29.5

2.45

62.2

1.45

36.8

.66

16.8

.58

14.7

.44

11.2

II774S-08

II774B-08

1/2

12.70

.41

10.4

15/16

23.8

1.98

50.2

1.25

31.8

2.80

71.1

1.65

41.9

.90

22.9

.77

19.4

.50

12.7

II774S-12

II774B-12

3/4

19.05

.62

15.7

1.3/16

30.2

2.31

58.7

1.47

37.3

3.11

79.0

1.87

47.5

.96

24.4

1.02

25.8

.66

16.8

II774S-16

II774B-16

25.40

.88

22.4

1.5/8

41.3

2.81

71.4

1.78

45.2

3.77

95.8

2.26

57.4

1.23

31.2

1.33

33.7

.75

19.1

UNION ELBOW 765

N W

TUBE TO TUBE UNIONS L

TUBE TO TUBE UNIONS

LET-LOK速 (IMPERIAL) 12

LET-LOK

Product Code

Stainless Steel

Brass

765 Union Elbow Tube (inch) to Tube (inch) A

W Wrench Flat

Tube O.D.

ins

II765S-02

II765B-02

1/8

3.17

.09

2.28

3/8

9.52

.62

15.74

.88

22.35

.50

12.7

II765S-04

II765B-04

1/4

6.35

.19

4.82

1/2

12.7

.77

19.56

1.06

26.92

.60

15.2

II765S-06

II765B-06

3/8

9.52

.28

7.11

5/8

15.87

.91

23.11

1.20

30.48

.66

16.8

II765S-08

II765B-08

1/2

12.7

.41

10.41 13/16 20.63

1.02

25.9

1.42

36.06

.90

22.9

II765S-10

II765B-10

5/8

15.87

.50

12.7

15/16 23.81

1.10

27.94

1.50

38.1

.96

24.4

II765S-12

II765B-12

3/4

19.05

.62

15.74

1.1/8

28.6

1.17

29.71

1.57

39.89

.96

24.4

II765S-16

II765B-16

25.40

.88

22.35

1.3/8

34.92

1.45

36.83

1.93

1.23

31.3

LET-LOK速 (IMPERIAL)

LET-LOK

TUBE TO TUBE UNIONS REDUCING UNION TEE 764R

E N

N W

A D

N1 E1 I

I1 A1

764R Reducing Tee - All Tube (inch)

Product Code

A1 Tube O.D.

ins

25.40

1/2

12.7

1.93

49.0

1.76

44.7

1.23

31.2

.90

22.9

.41

10.4

1.3/8

34.9

1.45

36.8

1.36

34.5

II764RS-161608

Minimum opening

Wrench Flat

Note: Many combinations of this fitting are available to order on an indent basis. Please refer Pirtek

UNION TEE 764

E N

Product Code

Stainless Steel

Brass

764 Union Tee - All Tube (inch) A

Tube O.D.

Wrench Flat

ins

1/8

3.17

.09

2.28

1/2

12.7

.62

15.74

.88

22.35

.50

12.7

II764S-02

II764B-02

II764S-04

II764B-04

1/4

6.35

.19

4.82

1/2

12.7

.77

19.56

1.06

26.92

.60

15.2

II764S-05

II764B-05

5/16

7.93

.25

6.35

5/8

15.87

.88

22.35

1.17

29.71

.64

16.3

II764S-06

II764B-06

3/8

9.52

.28

7.11

5/8

15.87

.91

23.11

1.20

30.48

.66

16.8

II764S-08

II764B-08

1/2

12.7

.41

10.41 13/16 20.63

1.02

25.9

1.42

36.06

.90

22.9

II764S-10

II764B-10

5/8

15.87

.50

12.70 15/16 23.81

1.13

28.7

1.53

38.9

.96

24.4

II764S-12

II764B-12

3/4

19.05

.62

15.74

1.1/8

28.6

1.17

29.71

1.57

39.89

.96

24.4

II764S-16

II764B-16

25.40

.88

22.35

1.3/8

34.93

1.45

36.83

1.93

1.23

31.3

Product Code

Stainless Steel

Brass

ins

II7102S-02

II7102B-02

1/8

3.17

.09

2.28

3/8

9.52

.62

15.74

.88

22.35

.50

12.7

II7102S-04

II7102B-04

1/4

6.35

.19

4.82

1/2

12.7

.77

19.56

1.07

27.18

.60

15.2

II7102S-06

II7102B-06

3/8

9.52

.28

10.41

5/8

15.87

.91

23.11

1.20

30.48

.66

16.8

II7102S-08

II7102B-08

1/2

12.7

.41

10.41 13/16 20.63

1.02

25.9

1.42

36.06

.90

22.9

II7102S-12

II7102B-12

3/4

19.05

.62

15.74 1.1/16 26.98

1.17

29.72 1.578 39.88

.96

24.4

II7102S-16

II7102B-16

25.40

.88

22.35

1.45

36.8

1.23

31.2

TUBE TO TUBE UNIONS

A Tube O.D.

Stainless Steel

UNION CROSS 7102

E N

7102 Union Cross - All Tube (inch) A

Tube O.D.

Wrench Flat

1.3/8

34.9

1.93

49.02

TUBE STUB CONNECTORS PORT CONNECTOR 767P

Product Code

767P Port Connector - Connects Equal (Inch) Let-Lok速 Ports A

Stainless Steel

Tube O.D. ins

ins

II767PS-04

1/4

6.35

.19

4.82

.74

18.8

.97

24.64

.37

9.4

II767PS-06

3/8

9.52

.30

7.62

.80

20.32

1.03

26.16

.50

12.70

II767PS-08

1/2

12.7

.39

9.90

1.02

25.90

1.41

35.81

.62

15.75

II767PS-12

3/4

19.05

.59

14.58

1.09

27.68

1.47

37.34

.87

22.10

II767PS-16

25.40

.80

20.32

1.36

34.54

1.90

48.26

1.12

28.45

1/4 TURN

Assembly instructions

REDUCING PORT CONNECTOR 767M

Product Code Stainless Steel

767M Reducing Port Connector - Connects Unequal (Inch) Let-Lok速 Ports A

Tube O.D.

ins

II767MS-0604

3/8

9.52

1/4

6.25

.19

4.82

.62

15.75

.98

24.90

.50

12.70

.13

3.30

II767MS-0804

1/2

12.7

1/4

6.25

.19

4.82

.62

15.75

1.15

29.21

.62

15.75

.15

3.81

II767MS-0806

1/2

12.7

3/8

9.52

.28

7.11

.69

17.52

1.20

30.48

.62

15.75

.13

3.30

II767MS-1208

3/4

19.05

1/2

12.7

.39

9.90

.91

23.11

1.44

36.58

.87

22.10

.15

3.81

A J

TUBE STUB CONNECTORS

11/4 TURN

LET-LOK速 (IMPERIAL)

LET-LOK

Tighten 1/4 turn only where no tube deformation is involved 11/4 TURN

1/4 TURN

Assembly instructions

LET-LOK® (IMPERIAL)

LET-LOK

TUBE STUB CONNECTORS REDUCER 767T

I L

Product Code

Stainless Steel

Brass

767T Reducer - Tube (inch) to Stub (inch) A

Tube O.D.

ins

II767TB-0402

1/4

6.35

1/8

3.17

.08

2.03

1/2

12.7

1.16

29.46

1.45

36.83

.60

15.2

II767TS-0406

II767TB-0406

1/4

6.35

3/8

9.52

.19

4.82

1/2

12.7

1.31

33.27

1.60

40.64

.60

15.2

II767TB-0408

1/4

6.35

1/2

12.7

.19

4.82

9/16

14.28

1.53

38.86

1.82

46.22

.60

15.2

II767TB-0604

3/8

9.52

1/4

6.35

.19

4.22

5/8

15.87

1.34

34.03

1.63

41.4

.66

16.8

II767TS-0608

II767TB-0608

3/8

9.52

1/2

12.7

.28

7.11

5/8

15.87

1.62

41.14

1.91

48.51

.66

16.8

II767TS-0612

II767TB-0612

3/8

9.52

3/4

19.05

.28

7.11

13/16

20.63

1.69

42.92

1.98

50.29

.66

16.8

II767TB-0804

1/2

12.7

1/4

6.35

.19

4.82

13/16

20.63

1.37

34.80

1.77

44.96

.90

22.9

II767TS-0806

II767TB-0806

1/2

12.7

3/8

9.52

.28

7.11

13/16

20.63

1.44

36.58

1.84

46.74

.90

22.9

II767TS-0812

II767TB-0812

1/2

12.7

3/4

19.05

.41

10.41

13/16

20.63

1.72

43.68

2.12

53.84

.90

22.9

II767TS-0816

II767TB-0816

1/2

12.7

25.4

.41

10.41

1.1/16

26.98

1.97

50.03

2.37

60.19

.90

22.9

II767TS-1208

II767TB-1208

3/4

19.05

1/2

12.7

.39

9.91

1.1/16

26.98

1.75

44.45

2.15

54.61

.96

24.4

II767TS-1216

II767TB-1216

3/4

19.05

25.4

.62

15.75

1.1/16

26.98

2.06

52.32

2.46

62.48

.96

24.4

II767TS-0408 II767TS-0604

II767TS-0804

Example: UNION TEE - 764

REDUCER - 767 T

Heat exchanger tee made with Let-Lok tube fittings

TUBE STUB CONNECTORS

ins II767TS-0402

1.1/4 TURN (450º) ONLY

BULKHEAD REDUCER 774T

N N1

I L1

N2 L

774T Bulkhead Reducer - Tube (inch) to Stub (inch)

Product Code

Stainless Steel

Brass

II774TS-04

II774TB-04

II774TS-06

II774TB-06

3/8

9.52

3/8

9.52

.28

7.1

3/4

19.1

2.1

54.1

1.16

29.5

.69

17.5

2.41

61.5

1.5

36.8

.66

16.8

II774TS-08

II774TB-08

1/2

12.70

1/2

12.70

.39

10.4

15/16

23.8

2.5

62.7

1.25

31.8

.91

23.1

2.87

72.9

1.6

41.9

.90

22.9

Tube O.D.

Minimum opening

Wrench Flat

ins

1/4

6.35

1/4

6.35

.17

4.8

5/8

15.9

1.9

48.3

1.03

26.2

.62

15.7

2.20

55.6

1.3

33.5

.60

15.2

TUBE TO MALE PIPE MALE CONNECTOR (BSPT) 768*B

PLEASE NOTE: Pirtek stock Male Connectors in the following configurations, all of which are documented in these pages • BSPT • NPT • BSPP • JIC / AN Other forms that are are available to order include: • Butt Weld • Socket Weld

LET-LOK® (IMPERIAL)

LET-LOK

I L

TUBE TO MALE PIPE

768*B Male Connector - Connects Tube (inch) to Male BSPT Thread Product Code

Product Code

Stainless Steel

Brass

II768SB-0202

II768BB-0202

II768SB-0204 II768SB-0302

Tube O.D.

(BSPT)

ins

1/8

3.17

R-1/8

.09

2.28

7/16

11.11

.94

23.8

1.17

29.71

.50

12.7

II768BB-0204

1/8

3.17

R-1/4

.09

2.28

9/16

14.28

1.14

28.95

1.40

35.56

.50

12.7

II768BB-0302

3/16

4.76

R-1/8

.12

3.04

7/16

11.11

.97

24.53

1.23

31.24

.54

13.7

II768SB-0402

II768BB-0402

1/4

6.35

R-1/8

.19

4.82

1/2

12.7

1.0

25.4

1.29

32.76

.60

15.2

II768SB-0404

II768BB-0404

1/4

6.35

R-1/4

.19

4.82

9/16

14.28

1.2

30.5

1.49

37.85

.60

15.2

II768SB-0406

II768BB-0406

1/4

6.35

R-3/8

.19

4.82

11/16

17.46

1.21

30.78

1.51

38.35

.60

15.2

II768SB-0408

II768BB-0408

1/4

6.35

R-1/2

.19

4.82

7/8

22.22

1.47

37.34

1.76

44.70

.60

15.2

II768SB-0502

II768BB-0502

5/16

7.93

R-1/8

.19

4.82

9/16

14.28

1.05

26.67

1.34

34.03

.64

16.2

II768SB-0504

II768BB-0504

5/16

7.93

R-1/4

.25

6.35

9/16

14.28

1.23

31.24

1.52

38.6

.64

16.2

II768SB-0602

II768BB-0602

3/8

9.52

R-1/8

.19

4.82

5/8

15.87

1.10

27.90

1.38

35.05

.66

16.8

II768SB-0604

II768BB-0604

3/8

9.52

R-1/4

.28

7.11

5/8

15.87

1.28

32.51

1.57

39.87

.66

16.8

II768SB-0606

II768BB-0606

3/8

9.52

R-3/8

.28

7.11

11/16

17.46

1.28

32.51

1.57

39.87

.66

16.8

II768SB-0608

II768BB-0608

3/8

9.52

R-1/2

.28

7.11

7/8

22.22

1.53

38.90

1.82

46.23

.66

16.8

II768SB-0804

II768BB-0804

1/2

12.7

R-1/4

.28

7.11

13/16

20.63

1.31

33.27

1.71

43.43

.90

22.9

II768SB-0806

II768BB-0806

1/2

12.7

R-3/8

.38

9.65

13/16

20.63

1.31

33.27

1.71

43.43

.90

22.9

II768SB-0808

II768BB-0808

1/2

12.7

R-1/2

.41

10.41

7/8

22.22

1.53

38.90

1.93

49.02

.90

22.9

II768SB-0812

II768BB-0812

1/2

12.7

R-3/4

.41

10.41

1.1/16

26.98

1.59

40.38

1.99

50.54

.96

22.9

II768SB-1008

II768BB-1008

5/8

15.87

R-1/2

.47

11.90

15/16

23.81

1.53

38.86

1.93

49.02

.96

24.4

II768SB-1208

II768BB-1208

3/4

19.05

R-1/2

.50

12.70

1.1/16

26.98

1.59

40.38

1.99

50.54

.96

24.4

II768SB-1212

II768BB-1212

3/4

19.05

R-3/4

.62

15.74

1.1/16

26.98

1.59

40.38

1.99

50.54

.96

24.4

II768SB-1612

II768BB-1612

25.40

R-3/4

.72

18.28

1.3/8

34.92

1.78

45.21

2.26

57.40

1.23

31.2

II768SB-1616

II768BB-1616

25.40

R-1

.88

22.35

1.3/8

34.92

1.97

50.03

2.45

62.23

1.23

31.2

Reference Specifications: DIN - ISO 2999 BS - 21 JIS - B0203 ISO - 7/1 - BSP-T 55° Thread Angle Pitch ‘P’ is measured in Threads Per Inch (TPI) Truncations of root and crest are round Taper angle 1° 47’

Width Across Hex

55°

'LR' marked on Hex

1°47’

LET-LOK® (IMPERIAL)

LET-LOK

TUBE TO MALE PIPE MALE CONNECTOR (NPT) 768*N

I L

Tube O.D.

(NPT)

Product Code

Stainless Steel

Brass

II768SN-0202

II768BN-0202

II768SN-0204

II768BN-0204

1/8

3.17

1/4

.09

II768SN-0302

II768BN-0302

3/16

4.76

1/8

.12

II768SN-0402

II768BN-0402

1/4

6.35

1/8

.19

4.82

1/2

12.7

1.0

25.4

1.29

32.76

.60

15.2

II768SN-0404

II768BN-0404

1/4

6.35

1/4

.19

4.82

9/16

14.28

1.2

30.5

1.49

37.85

.60

15.2

II768SN-0406

II768BN-0406

1/4

6.35

3/8

.19

4.82

11/16

17.46

1.21

30.78

1.51

38.35

.60

15.2

II768SN-0408

II768BN-0408

1/4

6.35

1/2

.19

4.82

7/8

22.22

1.47

37.34

1.76

44.70

.60

15.2

II768SN-0412

II768BN-0412

1/4

6.35

3/4

.19

4.82

7/8

22.22

1.19

30.20

1.48

37.59

.60

15.2

II768SN-0502

II768BN-0502

5/16

7.93

1/8

.19

4.82

9/16

14.28

1.05

26.67

1.34

34.03

.64

16.2

II768SN-0504

II768BN-0504

5/16

7.93

1/4

.25

6.35

9/16

14.28

1.23

31.24

1.52

38.6

.64

16.2

II768SN-0602

II768BN-0602

3/8

9.52

1/8

.19

4.82

5/8

15.87

1.10

27.90

1.39

35.3

.66

16.8

II768SN-0604

II768BN-0604

3/8

9.52

1/4

.28

7.11

5/8

15.87

1.28

32.51

1.57

39.87

.66

16.8

II768SN-0606

II768BN-0606

3/8

9.52

3/8

.28

7.11

11/16

17.46

1.28

32.51

1.57

39.87

.66

16.8

II768SN-0608

II768BN-0608

3/8

9.52

1/2

.28

7.11

7/8

22.22

1.53

38.90

1.82

46.23

.66

16.8

II768SN-0612

II768BN-0612

3/8

9.52

3/4

.28

7.11

7/8

22.22

1.53

38.90

1.82

46.23

.66

16.8

II768SN-0804

II768BN-0804

1/2

12.7

1/4

.28

7.11

13/16

20.63

1.31

33.27

1.71

43.43

.90

22.9

II768SN-0806

II768BN-0806

1/2

12.7

3/8

.38

9.65

1.1/16

26.98

1.59

40.38

1.88

47.75

.66

16.8

II768SN-0808

II768BN-0808

1/2

12.7

1/2

.41

10.41

7/8

22.22

1.53

38.90

1.93

49.02

.90

22.9

II768SN-0812

II768BN-0812

1/2

12.7

3/4

.41

10.41

1.1/16

26.98

1.59

40.38

1.99

50.54

.90

22.9

Width Across Hex

ins

1/8

3.17

1/8

.09

2.28

7/16

11.11

.94

23.8

1.17

29.71

.50

12.7

2.28

9/16

14.28

1.14

28.95

1.40

35.56

.50

12.7

3.04

7/16

11.11

.97

24.53

1.23

31.24

.54

13.7

1/2

12.7

.41

10.41

1.3/8

34.90

1.85

47.00

2.25

57.15

.90

22.9

II768SN-1008

II768BN-1008

5/8

15.87

1/2

.47

11.90

15/16

23.81

1.53

38.86

1.93

49.02

.96

24.4

II768SN-1208

II768BN-1208

3/4

19.05

1/2

.50

12.70

1.1/16

26.98

1.59

40.38

1.99

50.54

.96

24.4

II768SN-1212

II768BN-1212

3/4

19.05

3/4

.62

15.74

1.1/16

26.98

1.59

40.38

1.99

50.54

.96

24.4

II768SN-1216

II768BN-1216

3/4

19.05

.62

15.74

1.1/16

26.98

1.59

40.38

1.99

50.54

.96

24.4

II768SN-1608

II768BN-1608

25.40

1/2

.47

11.9

1.3/8

34.92

1.72

43.70

2.2

55.8

1.23

31.2

II768SN-1612

II768BN-1612

25.40

3/4

.72

18.28

1.3/8

34.92

1.78

45.21

2.26

57.40

1.23

31.2

II768SN-1616

II768BN-1616

25.40

.88

22.35

1.3/8

34.92

1.97

50.03

2.45

62.23

1.23

31.2

II768SN-0816

Reference Specifications: 60° Thread Angle Pitch ‘P’ is measured in Threads Per Inch (TPI) Truncations of root and crest are flat Taper angle 1° 47’ American Standard Pipe Thread (NPT) NPT (National Pipe Tapered) is made to 1°47’ specifications outlined in ANSI B1.20.1

TUBE TO MALE PIPE

768*N Male Connector - Connects Tube (inch) to Male NPT Thread Product Code

60°

TUBE TO MALE PIPE MALE CONNECTOR (BSPP) 768*P

D I

LET-LOK® (IMPERIAL)

LET-LOK

M L

TUBE TO MALE PIPE

768SP Male Connector - Connects Tube (inch) to Male BSPP Thread Product Code Stainless Steel

Tube O.D.

(BSPP)

ins

II768SP-0404

1/4

6.35

G-1/4

4.8

18.0

9/16

14.28

30.2

11.2

37.6

15.3

II768SP-0406

1/4

6.35

G-3/8

4.8

21.8

11/16

17.46

31.50

11.2

38.90

15.3

II768SP-0606

3/8

9.52

G-3/8

7.9

21.8

11/16

17.46

33.0

11.2

40.6

17.2

II768SP-0608

3/8

9.52

G-1/2

7.9

26.0

7/8

22.22

38.90

14.2

46.5

17.2

II768SP-0808

1/2

12.7

G-1/2

9.5

26.0

7/8

22.22

38.90

14.2

49.0

22.8

II768SP-0812

1/2

12.7

G-3/4

9.5

32.0

1.1/16

26.98

42.7

15.7

52.8

22.8

II768SP-1208

3/4

19.05

G-1/2

15.9

32.0

1.1/16

26.98

42.7

15.7

52.8

26.0

II768SP-1212

3/4

19.05

G-3/4

15.9

32.0

1.1/16

26.98

42.7

15.7

52.8

26.0

II768SP-1616

25.40

G-1

19.8

39.0

1.3/8

34.92

47.8

18.3

60.1

31.3

Note: A Bonded Seal (Dowty Washer) is required to provide a seal

55° Reference Specifications: DIN - ISO 228/1 BS - 2779 JIS - B0202 ISO - 228/1 - BSP-P 55° Thread Angle Pitch measured in Threads Per Inch (TPI) Truncation of root and crest are round Diameter measured in inches

Width Across Hex

LET-LOK® (IMPERIAL)

LET-LOK

TUBE TO MALE PIPE MALE PIPE BUTT WELD CONNECTOR 768N

MALE TUBE SOCKET WELD CONNECTOR 768W

N W

.5°

TUBE TO MALE PIPE

768N Male Pipe Butt Weld Connector - Tube (inch) Product Code Stainless Steel Butt Weld

Tube O.D.

Pipe Size

Min. Opening

Width Across Hex

ins

II768NS-0202

1/8

3.17

1/8

10.30

.09

2.28

7/16

11.11

.94

23.88

.38

9.65

1.20

30.48

.50

12.70

II768NS-0404

1/4

6.35

1/4

13.70

.19

4.82

9/16

14.28

1.19

30.22

.56

14.22

1.48

37.59

.60

15.24

II768NS-0606

3/8

9.52

3/8

17.10

.28

7.11

11/16

17.46

1.28

32.51

.56

14.22

1.57

39.87

.66

16.76

II768NS-0808

1/2

12.70

1/2

21.34

.41

10.41

7/8

22.22

1.53

38.86

.75

19.05

1.93

49.0

.90

22.86

II768NS-1212

3/4

19.05

3/4

26.67

.62

15.74

1.1/16

26.98

1.60

40.64

.75

19.05

2.00

50.8

.96

24.38

II768NS-1616

25.40

33.40

.88

22.35

1.3/8

34.92

1.97

50.03

.94

23.87

2.45

62.23

1.23

31.24

768W Male Tube Socket Weld Connector - Tube (inch) Product Code Stainless Steel Socket Weld

Tube O.D.

Min. Opening

Width Across Hex

ins

II768WS-0202

1/8

3.17

0.34

8.64

0.09

2.28

7/16

11.11

0.31

7.87

0.25

6.35

0.50

12.70

1.14

28.96

0.88

22.35

II768WS-0404

1/4

6.35

0.41

10.41

0.19

4.80

1/2

12.70

0.44

11.18

0.31

7.87

0.60

15.20

1.321

33.53

1.03

26.16

II768WS-0606

3/8

9.52

0.47

11.94

0.28

7.10

5/8

15.88

0.62

15.75

0.38

9.65

0.66

16.80

1.48

37.60

1.19

30.23

II768WS-0808

1/2

12.70

0.47

11.94

0.41

10.40

13/16

20.64

0.75

19.05

0.50

12.7

0.90

22.90

1.62

41.15

1.22

31.00

II768WS-1212

3/4

19.05

0.47

11.94

0.62

15.80

1.1/16

27.00

1.05

26.67

0.56

14.22

0.96

24.40

1.71

43.43

1.31

33.28

1.3/8

34.93

1.31

33.27

0.75

19.05

1.23

31.20

2.07

52.58

1.59

40.40

1 25.40 0.56 14.22 0.88 22.35 II768WS-1616 Note: All the above are indent items available only to order. Please refer Pirtek

MALE CONNECTOR SAE / MS 768OB

I L

768OB Connects Tube (inch) to SAE / MS Straight Thread Boss Product Code

BS Code

Tube O.D.

Thread Size UN

Width Across Hex

Stainless Steel

Duro 90 Viton O-Ring

ins

II768OBSM-04

904

1/4

6.35

7/16-20

11.1

.19

4.82

9/16

14.28

1.05

26.67

.36

9.14

1.34

34.03

0.60

15.2

II768OBSM-06

906

3/8

9.52

9/16-18

14.3

.28

7.11

11/16

17.46

1.17

29.71

.39

9.90

1.46

37.02

0.66

16.8

II768OBSM-08

908

1/2

12.70

3/4-16

19.1

.41

10.41

7/8

22.22

1.25

31.75

.44

11.17

1.66

41.91

0.90

22.9

TUBE TO MALE PIPE E

MALE ELBOW (BSPT) 769*B

LET-LOK速 (IMPERIAL)

LET-LOK

TUBE TO MALE PIPE 20

769*B Male Elbow - Connects Tube (inch) to Male BSPT Thread A

Tube O.D.

(BSPT)

Product Code

Stainless Steel

Brass ins

ins

II769SB-0202

II769BB-0202

1/8

3.17

R-1/8

.09

2.28

7/16

11.11

.67

17.02

.93

23.62

.70

17.28

.50

12.7

II769SB-0302

II769BB-0302

3/16

4.76

R-1/8

.12

3.04

1/2

12.7

.74

18.8

1.00

25.4

.74

18.80

.54

13.7

II769SB-0402

II769BB-0402

1/4

6.35

R-1/8

.19

4.82

1/2

12.7

.77

19.56

1.06

26.92

.74

18.80

.60

15.2

II769SB-0404

II769BB-0404

1/4

6.35

R-1/4

.19

4.82

1/2

12.7

.77

19.56

1.06

26.92

.92

23.37

.60

15.2

II769SB-0406

II769BB-0406

1/4

6.35

R-3/8

.19

4.82

13/16

20.63

.88

22.35

1.17

29.71

1.03

26.16

.60

15.2

II769SB-0602

II769BB-0602

3/8

9.52

R-1/8

.19

4.82

5/8

15.87

.91

23.11

1.20

30.48

.82

20.83

.66

16.8

II769SB-0604

II769BB-0604

3/8

9.52

R-1/4

.28

7.11

5/8

15.87

.91

23.11

1.20

30.48

1.00

25.40

.66

16.8

II769SB-0606

II769BB-0606

3/8

9.52

R-3/8

.28

7.11

13/16

20.63

.94

23.87

1.23

31.24

1.03

26.16

.66

16.8

II769SB-0608

II769BB-0608

3/8

9.52

R-1/2

.28

7.11

15/16

23.81

1.02

25.90

1.31

33.28

1.30

33.02

.66

16.8

II769SB-0804

II769BB-0804

1/2

12.7

R-1/4

.28

7.11

13/16

20.63

1.02

25.90

1.42

36.07

1.11

28.19

.90

22.9

II769SB-0806

II769BB-0806

1/2

12.7

R-3/8

.38

9.65

13/16

20.63

1.02

25.90

1.42

36.07

1.11

28.19

.90

22.9

II769SB-0808

II769BB-0808

1/2

12.7

R-1/2

.41

10.41

15/16

23.81

1.02

25.9

1.42

36.07

1.30

33.02

.90

22.9

II769SB-0812

II769BB-0812

1/2

12.7

R-3/4

.41

10.41

1.1/8

28.60

1.17

29.71

1.57

39.88

1.45

36.83

.90

22.9

II769SB-1008

II769BB-1008

5/8

15.87

R-1/2

.47

11.90

15/16

23.81

1.10

27.94

1.50

38.10

1.38

35.05

.96

24.4

II769SB-1208

II769BB-1208

3/4

19.05

R-1/2

.47

11.90

1.1/8

28.60

1.17

29.71

1.57

39.88

1.45

36.83

.96

24.4

II769SB-1212

II769BB-1212

3/4

19.05

R-3/4

.62

15.74

1.1/8

28.60

1.17

29.71

1.57

39.88

1.45

36.83

.96

24.4

II769SB-1616

II769BB-1616

25.40

R-1

.88

22.35

1.3/8

34.92

1.45

36.83

1.93

49.02

1.83

46.48

1.23

31.2

Width Across Hex

LET-LOK速 (IMPERIAL)

LET-LOK

TUBE TO MALE PIPE E

MALE ELBOW (NPT) 769*N

Tube O.D.

(NPT)

Product Code

Stainless Steel

Brass ins

ins

II769SN-0202

II769BN-0202

1/8

3.17

1/8

.09

2.28

7/16

11.11

.67

17.02

.93

23.62

.70

17.28

.50

12.7

II769SN-0204

II769BN-0204

1/8

3.17

1/4

.09

2.28

1/2

12.7

.71

18.03

.97

24.64

.92

23.37

.50

12.7

II769SN-0402

II769BN-0402

1/4

6.35

1/8

.19

4.82

1/2

12.7

.77

19.56

1.06

26.92

.74

18.80

.60

15.2

II769SN-0404

II769BN-0404

1/4

6.35

1/4

.19

4.82

1/2

12.7

.77

19.56

1.06

26.92

.92

23.37

.60

15.2

II769SN-0406

II769BN-0406

1/4

6.35

3/8

.19

4.82

13/16

20.63

.88

22.35

1.17

29.71

1.03

26.16

.60

15.2

II769SN-0502

II769BN-0502

5/16

7.93

1/8

.19

4.82

5/8

15.87

.84

21.34

1.13

28.70

.78

45.21

.64

16.2

II769SN-0504

II769BN-0504

5/16

7.93

1/4

.25

6.35

5/8

15.87

.84

21.34

1.13

28.70

.96

49.78

.64

16.2

II769SN-0604

II769BN-0604

3/8

9.52

1/4

.28

7.11

5/8

15.87

.91

23.11

1.20

30.48

1.00

25.40

.66

16.8

II769SN-0606

II769BN-0606

3/8

9.52

3/8

.28

7.11

13/16

20.63

.94

23.87

1.23

31.24

1.03

26.16

.66

16.8

II769SN-0608

II769BN-0608

3/8

9.52

1/2

.28

7.11

15/16

23.81

1.02

25.90

1.31

33.28

1.30

33.02

.66

16.8

II769SN-0804

II769BN-0804

1/2

12.7

1/4

.28

7.11

13/16

20.63

1.02

25.90

1.42

36.07

1.11

28.19

.90

22.9

II769SN-0808

II769BN-0808

1/2

12.7

1/2

.41

10.41

15/16

23.81

1.02

25.9

1.42

36.07

1.30

33.02

.90

22.9

II769SN-1008

II769BN-1008

5/8

15.87

1/2

.47

11.94

15/16

23.81

1.10

27.94

1.50

38.10

1.38

35.05

.96

24.4

II769SN-1212

II769BN-1212

3/4

19.05

3/4

.62

15.74

1.1/8

28.60

1.17

29.71

1.57

39.88

1.45

36.83

.96

24.4

II769SN-1616

II769BN-1616

25.40

.88

22.35

1.3/8

34.92

1.45

36.83

1.93

49.02

1.83

46.48

1.23

31.2

Width Across Hex

TUBE TO MALE PIPE

769*N Male Elbow - Connects Tube (inch) to Male NPT Thread

TUBE TO MALE PIPE MALE RUN TEE 771*N

E N

D I I

LET-LOK速 (IMPERIAL)

LET-LOK

Product Code Stainless Steel

TUBE TO MALE PIPE

NPT

BSPT

771 Male Run Tee - Connects Tube (inch) to Male NPT or BSPT Thread A

Tube O.D.

(NPT)

(BSPT) ins

Width Across Hex

ins

II771SN-0404

II771SB-0404

1/4

6.35

1/4

.19

4.82

5/8

15.87

.77

19.56

1.06

26.92

.92

23.37

.60

15.2

II771SN-0604

II771SB-0604

3/8

9.52

1/4

.28

7.11

5/8

15.87

.91

23.11

1.20

30.48

1.00

25.40

.66

16.8

II771SN-0606

II771SB-0606

3/8

9.52

3/8

.28

7.11

13/16

20.63

1.02

25.91

1.31

33.27

1.11

28.19

.66

16.8

II771SN-0806

II771SB-0806

1/2

12.7

3/8

.41

10.41

13/16

20.63

1.02

25.91

1.42

36.07

1.11

28.19

.90

22.9

II771SN-0808

II771SB-0808

1/2

12.7

1/2

.41

10.41

15/16

23.81

1.02

25.9

1.42

36.07

1.30

33.02

.90

22.9

II771SN-1212

II771SB-1212

3/4

19.05

3/4

.62

15.75

1.1/8

28.60

1.17

29.71

1.57

39.88

1.45

36.83

.96

24.4

Note: This range of fittings is typically stocked as NPT. Refer to Pirtek for availability of BSPT fittings.

MALE BRANCH TEE 772*N

E N

Product Code Stainless Steel

NPT

BSPT

772 Male Branch Tee - Connects Tube (inch) to Male NPT or BSPT Thread A

Tube O.D.

(NPT)

(BSPT) ins

Width Across Hex

ins

II772SN-0404

II772SB-0404

1/4

6.35

1/4

.19

4.82

5/8

15.87

.77

19.56

1.06

26.92

.92

23.37

.60

15.2

II772SN-0604

II772SB-0604

3/8

9.52

1/4

.28

7.11

5/8

15.87

.91

23.11

1.20

30.48

1.00

25.40

.66

16.8

II772SN-0606

II772SB-0606

3/8

9.52

3/8

.28

7.11

13/16

20.63

1.02

25.91

1.31

33.27

1.11

28.19

.66

16.8

II772SN-0806

II772SB-0806

1/2

12.7

3/8

.38

9.65

13/16

20.63

1.02

25.91

1.42

36.07

1.11

28.19

.90

22.9

II772SN-0808

II772SB-0808

1/2

12.7

1/2

.41

10.41

15/16

23.81

1.02

25.9

1.42

36.07

1.30

33.02

.90

22.9

II772SN-1212

II772SB-1212

3/4

19.05

3/4

.62

15.75

1.1/8

28.60

1.17

29.71

1.57

39.88

1.45

36.83

.96

24.4

Note: This range of fittings is typically stocked as NPT. Refer to Pirtek for availability of BSPT fittings.

LET-LOK速 (IMPERIAL)

LET-LOK

TUBE TO MALE PIPE L

TUBE TO MALE PIPE ADAPTOR 739M

Product Code Stainless Steel

739M Male Adaptor - Tube (inch) to Male Pipe NPT or BSPT Thread T (NPT) (BSPT)

Width Across Hex

NPT

BSPT ins

ins

II739MSN-0404

II739MSB-0404

1/4

6.35

1/4

.19

4.83

9/16

14.28

.62

15.74

1.46

37.08

II739MSN-0406

II739MSB-0406

1/4

6.35

3/8

.19

4.83

11/16

17.46

.62

15.74

1.46

37.08

II739MSB-0408

1/4

6.35

1/2

.19

4.83

7/8

22.22

.62

15.74

1.71

43.43

II739MSN-0604

II739MSB-0604

3/8

9.52

1/4

.28

7.11

9/16

14.28

.68

17.27

1.53

38.86

II739MSN-0606

II739MSB-0606

3/8

9.52

3/8

.28

7.11

11/16

17.46

.68

17.27

1.56

39.62

II739MSB-0608

3/8

9.52

1/2

.28

7.11

7/8

22.22

.68

17.27

1.78

45.21

II739MSN-0804

1/2

12.7

1/4

.39

9.90

9/16

14.28

.90

22.86

1.75

44.45

II739MSN-0806

II739MSB-0806

1/2

12.7

3/8

.39

9.90

11/16

17.46

.90

22.86

1.78

45.21

II739MSN-0808

II739MSB-0808

1/2

12.7

1/2

.39

9.90

7/8

22.22

.90

22.86

2.00

50.8

II739MSN-0608 II739MSN-0804

BULKHEAD MALE CONNECTOR 774M

N1 W

II739MSN-0408

TUBE TO MALE PIPE

A Tube O.D.

L1 L

Product Code

774M Bulkhead Male Connector - Connects Tube (inch) to Male NPT or BSPT Thread

Stainless Steel A

Tube O.D.

(NPT) (BSPT)

Width Across Hex

Panel Hole

Max. Panel

Drill Size

Thickness

NPT

BSPT

ins

II774MSN-0404

II774MSB-0404

1/4

6.35

1/4

.19

4.82

5/8

15.87

1.81

45.97

1.03

26.16

2.10

53.34

1.32

33.52

29/64

11.50

.40

10.16

II774MSN-0604

II774MSB-0604

3/8

9.52

1/4

.28

7.11

3/4

19.05

1.97

50.03

1.16

29.46

2.26

57.40

1.45

36.83

37/64

14.68

.44

11.17

II774MSN-0808

II774MSB-0808

1/2

12.7

1/2

.41

10.41

15/16

23.81

2.31

58.80

1.25

31.75

2.71

68.83

1.65

41.91

49/64

19.44

.50

12.70

TUBE TO FEMALE PIPE FEMALE CONNECTOR (BSPT) 766*B

I L

766*B Female Connector - Connects Tube (inch) to Female BSPT Thread A

Tube O.D.

(BSPT)

Product Code Brass

ins

II766SB-0302

II766BB-0302

3/16

4.76

R-1/8

.12

3.04

9/16

14.28

.91

23.11

1.17

29.71

.54

13.7

II766SB-0404

II766BB-0404

1/4

6.35

R-1/4

.19

4.82

3/4

19.05

1.12

28.44

1.41

35.81

.60

15.2

II766BB-0406

1/4

6.35

R-3/8

.19

4.82

7/8

22.22

1.19

30.22

1.48

37.59

.60

15.2

II766BB-0408

1/4

6.35

R-1/2

.19

4.82

1.1/16

26.98

1.38

35.0

1.67

42.42

.60

15.2

II766SB-0604

II766BB-0604

3/8

9.52

R-1/4

.28

7.11

3/4

19.05

1.19

30.22

1.48

37.59

.66

16.8

II766SB-0606

II766BB-0606

3/8

9.52

R-3/8

.28

7.11

7/8

22.22

1.25

31.75

1.54

39.11

.66

16.8

II766SB-0608

II766BB-0608

3/8

9.52

R-1/2

.28

7.11

1.1/16

26.98

1.44

36.57

1.73

43.94

.66

16.8

II766SB-0804

II766BB-0804

1/2

12.7

R-1/4

.41

10.41

13/16

20.63

1.19

30.20

1.59

40.38

.90

22.9

II766SB-0806

II766BB-0806

1/2

12.7

R-3/8

.41

10.41

7/8

22.22

1.25

31.75

1.65

41.91

.90

22.9

II766SB-0808

II766BB-0808

1/2

12.7

R-1/2

.41

10.41

1.1/16

26.98

1.44

36.57

1.84

46.73

.90

22.9

II766SB-0812

II766BB-0812

1/2

12.7

R-3/4

.41

10.41

1.5/16

33.33

1.50

38.10

1.90

48.26

.90

22.9

II766SB-1212

II766BB-1212

3/4

19.05

R-3/4

.62

15.74

1.5/16

33.33

1.50

38.10

1.90

48.26

.86

24.4

II766SB-1616

II766BB-1616

25.40

R-1

.88

22.35

1.5/8

41.27

1.97

50.03

2.45

62.23

1.23

31.2

II766SB-0408

FEMALE CONNECTOR (NPT) 766*N

II766SB-0406

Width Across Hex

TUBE TO FEMALE PIPE

Product Code Stainless Steel

LET-LOK速 (IMPERIAL)

LET-LOK

I L

766 Female Connector - Connects Tube (inch) to Female NPT Thread

Tube O.D.

(NPT)

Product Code

Stainless Steel

Brass

ins

II766SN-0404

II766BN-0404

1/4

6.35

1/4

.19

4.82

3/4

19.05

1.12

28.44

1.41

35.81

.60

15.2

II766SN-0406

II766BN-0406

1/4

6.35

3/8

.19

4.82

7/8

22.22

1.19

30.22

1.48

37.59

.60

15.2

II766SN-0408

II766BN-0408

1/4

6.35

1/2

.19

4.82

1.1/16

26.98

1.38

35.0

1.67

42.42

.60

15.2

II766SN-0504

II766BN-0504

5/16

7.93

1/4

.25

6.35

3/4

19.05

1.16

29.46

1.45

36.83

.64

16.3

II766SN-0604

II766BN-0604

3/8

9.52

1/4

.28

7.11

3/4

19.05

1.19

30.22

1.48

37.59

.66

16.8

II766SN-0606

II766BN-0606

3/8

9.52

3/8

.28

7.11

7/8

22.22

1.25

31.75

1.54

39.11

.66

16.8

II766SN-0608

II766BN-0608

3/8

9.52

1/2

.28

7.11

1.1/16

26.98

1.44

36.57

1.73

43.94

.66

16.8

II766SN-0804

II766BN-0804

1/2

12.7

1/4

.41

10.41

13/16

20.63

1.19

30.20

1.59

40.38

.90

22.9

II766SN-0806

II766BN-0806

1/2

12.7

3/8

.41

10.41

7/8

22.22

1.25

31.75

1.65

41.91

.90

22.9

II766SN-0808

II766BN-0808

1/2

12.7

1/2

.41

10.41

1.1/16

26.98

1.44

36.57

1.84

46.73

.90

22.9

II766SN-0812

II766BN-0812

1/2

12.7

3/4

.41

10.41

1.5/16

33.33

1.50

38.10

1.90

48.26

.90

22.9

II766SN-1208

II766BN-1208

3/4

19.05

1/2

.62

15.74

1.1/16

26.98

1.44

36.57

1.84

46.73

.86

24.4

II766SN-1212

II766BN-1212

3/4

19.05

3/4

.62

15.74

1.5/16

33.33

1.50

38.10

1.90

48.26

.86

24.4

II766SN-1612

II766BN-1612

25.40

3/4

.88

22.35

1.3/8

34.92

1.62

41.14

2.10

53.34

1.23

31.2

II766SN-1616

II766BN-1616

25.40

.88

22.35

1.5/8

41.27

1.97

50.03

2.45

62.23

1.23

31.2

Width Across Hex

LET-LOK速 (IMPERIAL)

LET-LOK

TUBE TO FEMALE PIPE FEMALE CONNECTOR (BSPP) 766*P

I L

766*P Female Connector - Connects Tube (inch) to Female BSPP Thread Product Code Stainless Steel

Tube O.D.

(BSPP)

Width Across Hex

ins

1/4

6.35

G-1/4

4.82

3/4

19.05

30.20

37.60

15.3

II766SP-0604

3/8

9.52

G-1/4

5.50

3/4

19.05

31.80

39.40

17.2

II766SP-0606

3/8

9.52

G-3/8

6.50

15/16

24.00

31.20

38.80

17.2

II766SP-0804

1/2

12.7

G-1/4

5.50

13/16

22.00

31.80

41.90

22.8

II766SP-0806

1/2

12.7

G-3/8

6.50

15/16

24.00

34.30

44.40

1/2 II766SP-0808 For thread specifications, refer page L 16

12.7

G-1/2

7.0

27.00

38.10

48.20

22.8 22.8

TUBE TO FEMALE PIPE

ins II766SP-0404

TUBE TO FEMALE PIPE E

FEMALE ELBOW 770

LET-LOK® (IMPERIAL)

LET-LOK

770*N Female Elbow - Connects Tube (inch) to Female NPT or BSPT Thread Product Code

TUBE TO FEMALE PIPE 26

Stainless Steel

A Tube O.D.

(NPT)

Width Across Hex

(BSPT)

NPT

BSPT

ins

II770SN-0404

II770SB-0404

1/4

6.35

1/4

.19

4.82

13/16

20.63

.88

22.35

1.17

29.72

.88

22.35

.60

15.2

II770SN-0406

II770SB-0406 †

1/4

6.35

3/8

.19

4.82

15/16

23.81

.96

24.38

1.25

31.75

.88

22.35

.60

15.2

II770SN-0604

II770SB-0604 †

3/8

9.52

1/4

.28

7.11

13/16

20.63

.88

22.35

1.23

31.24

.88

22.35

.66

16.76

II770SN-0606

II770SB-0606

3/8

9.52

3/8

.28

7.11

15/16

23.81

.88

22.35

1.31

33.27

.88

22.35

.66

16.8

II770SN-0608

II770SB-0608 †

3/8

9.52

1/2

.28

7.11

1.1/8

28.60

1.12

28.45

1.42

36.07

1.12

28.44

.66

16.76

II770SN-0804

II770SB-0804 †

1/2

12.7

1/4

.41

10.41

13/16

20.63

.88

22.35

1.42

36.07

.88

22.35

.90

22.9

II770SN-0806

II770SB-0806

1/2

12.7

3/8

.41

10.41

13/16

20.63

.88

22.35

1.42

36.07

.88

22.35

.90

22.9

II770SN-0808

II770SB-0808

1/2

12.7

1/2

.41

10.41

1.1/8

28.60

1.12

28.44

1.53

36.86

1.12

28.44

.90

22.9

II770SN-1212

II770SB-1212

3/4

19.0

3/4

.62

15.74

1.3/8

34.90

1.25

31.75

1.76

44.70

1.25

31.75

.90

22.9

† These items available only to order

LET-LOK速 (IMPERIAL)

LET-LOK

TUBE TO FEMALE PIPE E N

FEMALE RUN TEE 771F

771F Female Run Tee - Connects Tube (inch) to Female NPT or BSPT Thread A

Stainless Steel

Tube O.D.

(NPT)

Width Across Hex

(BSPT) NPT

BSPT

ins

II771FSN-0404

II771FSB-0404

1/4

6.35

1/4

.19

4.82

13/16

20.63

.88

22.35

1.17

29.71

.88

22.35

.60

15.2

II771FSN-0606

II771FSB-0606

3/8

9.52

3/8

.28

7.11

II771FSN-0808

II771FSB-0808

1/2

12.7

1/2

.41

10.41

1.1/8

28.60

1.17

29.72

1.57

39.88

12.12

28.45

.90

22.9

Note: This range of fittings is typically stocked as NPT. Refer to Pirtek for availability of BSPT fittings.

FEMALE BRANCH TEE 772F

E N

TUBE TO FEMALE PIPE

Product Code

772F Female Branch Tee - Connects Tube (inch) to Female NPT or BSPT Thread Product Code

Stainless Steel

Tube O.D.

(NPT)

Width Across Hex

(BSPT) NPT

BSPT

ins

II772FSN-0404

II772FSB-0404

1/4

6.35

1/4

.19

4.82

13/16

20.03

.88

22.35

1.17

29.71

.88

22.35

.60

15.2

II772FSN-0604

II772FSB-0604

3/8

9.52

1/4

.28

7.11

13/16

20.63

.94

23.87

1.23

31.24

.88

22.35

.66

15.2

II772FSN-0606

II772FSB-0606

3/8

9.52

3/8

.28

7.11

II772FSN-0804

II772FSB-0804

1/2

12.7

3/8

.41

10.41

13/16

20.63

1.02

25.91

1.42

36.06

.88

22.35

.90

22.9

II772FSB-0806

1/2

12.7

3/8

.41

10.41

15/16

23.81

1.02

25.90

1.42

36.07

.88

22.35

.90

16.8

II772FSN-0808

II772FSB-0808

1/2

12.7

1/2

.41

10.41

1.1/8

28.60

1.13

28.70

1.53

38.86

1.12

28.45

.90

22.9

II772FSN-1212

II772FSB-1212

3/4

19.05

3/4

.62

15.75

1.3/8

34.9

1.36

34.54

1.76

44.70

1.25

31.75

.96

24.4

II772FSB-1612

25.40

3/4

.88

22.35

1.3/8

34.92

1.45

36.83

1.93

49.02

1.25

31.75

1.23

24.4

II772FSN-0806

II772FSN-1612

Note: This range of fittings is typically stocked as NPT. Refer to Pirtek for availability of BSPT fittings.

TUBE TO FEMALE PIPE TUBE TO FEMALE PIPE ADAPTOR 739F

LET-LOK速 (IMPERIAL)

LET-LOK

739F Female Pipe Adaptor - Connects Tube (inch) to Female Pipe NPT or BSPT Thread Product Code

Stainless Steel

Tube O.D.

(NPT)

Width Across Hex

(BSPT) BSPT

ins

II739FSN-0402

II739FSB-0402

1/4

6.35

1/8

ins

II739FSN-0404

II739FSB-0404

1/4

6.35

II739FSN-0406

II739FSB-0406

1/4

6.35

1/4

.198

4.83

3/4

19.05

.62

15.74

1.46

37.08

3/8

.19

4.83

7/8

22.22

.62

15.74

1.55

II739FSN-0408

II739FSB-0408

1/4

39.37

6.35

1/2

.19

4.83

1.1/16

26.98

.62

15.74

1.79

45.46

II739FSN-0604

II739FSB-0604

II739FSN-0606

II739FSB-0606

3/8

9.52

1/4

.28

7.11

3/4

19.05

.68

17.27

1.50

38.10

3/8

9.52

3/8

.28

7.11

7/8

22.22

.68

17.27

1.59

II739FSN-0608

40.40

II739FSB-0608

3/8

9.52

1/2

.28

7.11

1.1/16

26.98

.68

17.27

1.84

46.73

II739FSN-0804

II739FSB-0804

1/2

12.7

1/4

.39

9.90

3/4

19.05

.90

22.86

1.71

43.43

II739FSN-0806

II739FSB-0806

1/2

12.7

3/8

.39

9.90

7/8

22.20

.90

22.86

1.79

45.47

II739FSN-0808

II739FSB-0808

1/2

12.7

1/2

.39

9.90

1.1/16

26.98

.90

22.86

2.04

51.82

Note: This range of fittings is typically stocked as NPT. Refer to Pirtek for availability of BSPT fittings.

BULKHEAD FEMALE CONNECTOR 774F

N N1 W1

TUBE TO FEMALE PIPE

NPT

I L1 L

774F Bulkhead Female Connector - Tube (inch) to Female NPT Thread Product Code

Tube O.D.

(NPT)

Width Across Width Across Hex Hex

Stainless Steel

Panel Hole

Max. Panel

Drill Size

Thickness

ins

II774FSN-0404

1/4

6.35

1/4

.19

4.82

3/4

19.05

5/8

15.87

1.75

44.45

1.03

26.16

2.04

51.81

1.32

33.52

.60

15.2

ins

29/64 11.50

ins

.40

10.16

II774FSN-0606

3/8

9.52

3/8

.41

10.41 15/16 23.81 15/16 23.81

2.03

51.56

1.25

31.75

2.43

61.72

1.65

41.91

.90

22.9

49/64 19.44

.50

12.70

II774FSN-0808

1/2

12.7

1/2

.41

10.41 1.1/16 26.98 15/16 23.81

2.22

56.38

1.25

31.75

2.62

66.54

1.65

41.91

.90

22.9

49/64 19.44

.50

12.70

774F Bulkhead Female Connector - Tube (inch) to Female BSPT Thread Product Code

Tube O.D.

(BSPT)

Stainless Steel

Width Across Width Across Hex Hex

Panel Hole

Max. Panel

Drill Size

Thickness

ins

II774FSB-0404

1/4

6.35

1/4

.19

4.82

3/4

19.05

5/8

15.87

1.75

44.45

1.03

26.16

2.04

51.81

1.32

33.52

.60

15.2

29/64 11.50

ins

.40

10.16

II774FSB-0606

3/8

9.52

3/8

.41

10.41 15/16 23.81 15/16 23.81

2.03

51.56

1.25

31.75

2.43

61.72

1.65

41.91

.90

22.9

49/64 19.44

.50

12.70

1/2 .41 10.41 1.1/16 26.98 15/16 23.81 2.22 56.38 1.25 31.75 2.62 66.54 1.65 41.91 .90 22.9 49/64 19.44 II774FSB-0808 1/2 12.7 Note: This range of fittings is typically stocked as NPT. Refer to Pirtek for availability of BSPT fittings in stainless steel or brass (Brass fittings use Product Code II774FBB)

.50

12.70

LET-LOK速 (IMPERIAL)

LET-LOK

TUBE TO JIC / AN FLARE LET-LOK TO JIC / AN MALE FLARE ADAPTOR 762FL

T L

762FL Let-Lok to AN / JIC Union - Tube (inch) to Tube (inch) Product Code

Stainless Steel

Tube O.D.

Tube Flare Size

Thread

Width Across Hex

(AN)

ins

II762FLSJ-0404

1/4

6.35

1/4

6.35

.17

4.31

1/2

12.70

1.19

30.22

1.48

37.59

.70

17.78

7/16 - 20

II762FLSJ-0606

3/8

9.52

3/8

9.52

.28

7.11

5/8

15.87

1.27

32.35

1.56

39.62

.76

19.3

9/16 - 18

II762FLSJ-0808

1/2

12.70

1/2

12.70

.39

9.90

13/16

20.63

1.41

35.80

1.80

45.72

.86

21.84

3/4 - 16

II762FLSJ-1212

3/4

19.05

3/4

19.05

.61

15.49

1.1/8

28.57

1.70

43.18

2.10

53.34

.86

21.84

1.1/16 - 12

II762FLSJ-1616

25.40

.84

21.34

1.3/8

34.92

1.94

49.28

2.42

61.47

1.04

26.42

1.5/16 - 12

TUBE TO JIC / AN FLARE

ins

LET-LOK TO JIC / AN MALE FLARE BULKHEAD 774FL

L1 I

B1 T B

774FL Let-Lok to AN / JIC Male Flare Bulkhead - Tube (inch) to Tube (inch) Product Code Stainless Steel

Tube O.D.

Tube Flare Size

Width Across Hex ins

ins

Panel Hole

Max. Panel

Drill Size

Thickness

ins

II774FLSJ-0404

1/4

6.35

1/4

6.35

.19

4.82

5/8

15.87 1.83 46.48 1.03 26.16 2.12 53.84 1.32 33.52

7/16-20

29/64 11.50 11.50 10.16

.60

15.2

II774FLSJ-0606

3/8

9.52

3/8

9.52

.28

7.11

3/4

19.05 1.96 49.78 1.16 29.46 2.25 57.15 1.45 36.83

9/16-18

37/64 14.68 14.68 11.17

.66

16.8

II774FLSJ-0808

1/2

12.70

1/2

12.70

.39

9.90 15/16 23.81 2.19 55.63 1.25 31.75 2.59 65.79 1.65 41.91

3/4-16

49/64 19.45 19.45 12.70

.90

22.9

CAPS AND PLUGS N

CAP 7108 A

I L

7108 Cap - Capping End of Tube (inch) Product Code

Product Code

Stainless Steel

Brass

Tube O.D.

Width Across Hex.

CAPS AND PLUGS

ins

II7108S-02

II7108B-02

1/8

3.17

7/16

11.11

.53

13.46

.79

20.06

.50

12.7

II7108S-04

II7108B-04

1/4

6.35

1/2

12.70

.62

15.74

.91

23.11

.60

15.2

II7108S-06

II7108B-06

3/8

9.52

5/8

15.87

.72

18.28

1.01

26.65

.66

16.2

II7108S-08

II7108B-08

1/2

12.70

13/16

20.63

.75

19.05

1.15

29.21

.90

16.8

II7108S-12

II7108B-12

3/4

19.05

1.1/16

26.98

.84

21.33

1.24

31.49

.96

24.4

II7108S-16

II7108B-16

25.40

1.3/8

34.92

1.03

26.16

1.51

38.35

1.23

31.2

PLUG 7121

LET-LOK® (IMPERIAL)

LET-LOK

7121 Plug - Plugging Unused Port of Fitting (inch) Product Code

Product Code

Stainless Steel

Brass

Tube O.D.

Width Across Hex.

ins

II7121S-02

II7121B-02

1/8

3.17

7/16

11.11

II7121S-04

II7121B-04

1/4

6.35

9/16

14.28

II7121S-06

II7121B-06

3/8

9.52

11/16

17.46

II7121S-08

II7121B-08

1/2

12.70

7/8

22.22

II7121S-12

II7121B-12

3/4

19.05

1.1/8

28.57

II7121S-16

II7121B-16

25.40

1.1/2

38.10

PLUG ASSEMBLY INSTRUCTIONS

1/4 TURN (90º) ONLY

LET-LOK速 (IMPERIAL)

LET-LOK

TUBE TO HOSE CONNECTOR TUBE TO HOSE CONNECTOR 130LT

130LT Tube Stub to Hose Connector Product Code

Hose I.D.

Stainless Steel

Tube O.D.

Hex Flat

ins

1/8

3.18

1/4

6.35

.15

3.80

.08

2.00

.19

4.80

.40

10.2

.62

15.7

1.44

36.6

3/8

9.53

II130LTS-0404

1/4

6.35

1/4

6.35

.30

7.62

.19

4.80

.19

4.80

.79

20.1

.62

15.7

1.83

46.5

7/16

11.11

II130LTS-0606

3/8

9.53

3/8

9.52

.45

11.43

.30

7.60

.28

7.10

.87

22.1

.69

17.5

1.98

50.3

9/16

14.29

II130LTS-0808

1/2

12.7

1/2

12.7

15.24

.38

9.70

.39

9.90

.94

23.9

.91

23.1

2.27

57.7

11/16

17.46

TUBE TO HOSE CONNECTOR

ins II130LTS-0204

LET-LOK® (METRIC) (IMPERIAL) PICTORIAL INDEX 32

LET-LOK

TWIN FERRULE TUBE COMPRESSION FITTINGS PRODUCT CODE EXAMPLE

S = Stainless Steel B = Brass T = Teflon

768

Signifies Fitting Industrial Type Instrumentation (Male Connector)

Material

None = Tube all ends

Size Combination

Metric Tube OD

-M202 -M302 -M304 -M402 -M404 -M406 -M602 -M604 -M606 -M608 -M802 -M804 -M806 -M808 -M1004 -M1006 -M1008 -M1204 -M1206 -M1208 -M1212 -M1606 -M1608 -M1808 -M1812 -M2008 -M2012 -M2212 -M2216 -M2512 -M2516

2 3 3 4 4 4 6 6 6 6 8 8 8 8 10 10 10 12 12 12 12 16 16 18 18 20 20 22 22 25 25

Pipe Thread or Tube OD 1/8 1/8 1/4 1/8 1/4 3/8 1/8 1/4 3/8 1/2 1/8 1/4 3/8 1/2 1/4 3/8 1/2 1/4 3/8 1/2 3/4 3/8 1/2 1/2 3/4 1/2 3/4 3/4 1 3/4 1

Tube O.D. (as metric size) is always first to be described

Thread Dash Size (number of 1/16ths of an inch)

N = NPT Thread B = BSPT Thread P = BSPP Thread J = JIC / AN Thread

End Connection

II768SB-M604 Metric Tube to Male Stainless Steel Connector to suit 6 mm Tube and with 1/4” BSPT Thread

ABOUT LET-LOK How it Works

INSTALLATION

TUBE DATA

Nut

Ferrule Set

COMPONENTS

761

760

TWIN FERRULE TUBE COMPRESSION FITTINGS Straight Tube Union

Reducing Tube Union

762

763

Union Elbow

Union Tee

Reducing Union Tee

TUBE TO TUBE UNION 35

Tube Reducer

765

Male Elbow

768

769

764R

Male Run Tee

767T

Male Branch Tee

Tube to Male Pipe Adaptor

38-39

Female Connector

739M

CAP AND PLUG

766

Plug

771

Cap

TUBE TO FEMALE PIPE 41

Ball Valve Let-Lok

Ball Valve NPT

7108

Lever Ball Valve

PICTORIAL INDEX

Male Connector

TUBE TO MALE PIPE

TUBE STUB CONNECTOR

772

764

LET-LOK速 (METRIC) (IMPERIAL)

LET-LOK

Needle Valve Let-Lok

VALVES

7121

Needle Valve NPT

H310

H6800

H6810

Needle Valve High Pressure

Check Valve Let-Lok

Check Valve NPT

H99

H400

H410

H700

H300

LET-LOK速 (METRIC) (IMPERIAL) COMPONENTS 34

LET-LOK

COMPONENTS NUT 761

761 Nut (Metric) Product Code

Stainless Steel

Tube O.D.

Wrench Flat

ins

9/16

12.7

II761S-M8

5/8

13.5

II761S-M10

3/4

15.1

II761S-M12

7/8

17.4

II761S-M6

FERRULE SET 760

Product Code

Tube O.D.

Stainless Steel

II760S-M6

II760S-M8

II760S-M10

II760S-M12

II760S-M16

760 Ferrule (Metric) Stick Sets A ferrule set contains one front ferrule and one back ferrule x 10 sets housed on a single stick The stick provides a safe and easy method of storage as well as an easy and correct way to slide off a ferrule set directly onto tubing The risk of damage to individual ferrules is greatly reduced, and assembly errors avoided through their use Front and back ferrules are not available separately

LET-LOK速 (METRIC) (IMPERIAL)

LET-LOK

TUBE TO TUBE UNIONS TUBE UNION 762

762 Union Tube (Metric) to Tube (Metric)

Product Code Stainless Steel

Tube O.D.

Minimum opening

Wrench Flat

ins

II762S-M6

4.8

26.2

41.0

15.3

II762S-M8

6.4

28.2

43.2

16.2

II762S-M10

7.9

31.0

45.9

17.2

II762S-M12

9.5

31.0

51.2

22.8

II762S-M22

18.3

34.8

55.0

26.0

TUBE TO TUBE UNIONS

I L

REDUCING TUBE UNION 763

I L

Product Code Stainless Steel

763 Reducing Union - Tube (Metric) to Tube (Imperial) A

Tube O.D.

Minimum opening

Wrench Flat

ins

12 1/2 12.7 6.4 II763S-M1208 Note: This and many other combinations of this fitting are available to order on an indent basis. Please refer Pirtek

30.2

47.8

22.8

ins

mm 16.2

LET-LOK® (METRIC) (IMPERIAL)

LET-LOK

TUBE TO TUBE UNIONS UNION ELBOW 765 765 Union Elbow Tube (Metric) to Tube (Metric)

Product Code

E N

W Wrench Flat

ins

II765S-M6

4.8

1/2

12.5

19.6

27.0

15.3

II765S-M8

6.4

5/8

16.0

21.3

28.8

16.2

II765S-M10

7.9

11/16

17.5

23.9

31.5

17.2

II765S-M12

9.5

13/16

20.6

25.9

36.0

22.8

II765S-M16

12.7

15/16

24.0

27.9

38.0

24.4

TUBE TO TUBE UNIONS

Tube O.D.

Stainless Steel

UNION TEE 764

764 Union Tee - All Tube (Metric)

Product Code

Stainless Steel

E N

Tube O.D.

Wrench Flat

ins

II764S-M6

4.8

1/2

12.7

19.6

27.0

15.3

II764S-M8

6.4

5/8

16.0

22.4

29.9

16.2

II764S-M10

7.9

11/16

20.5

23.9

31.5

17.2

II764S-M12

9.5

13/16

20.5

25.9

36.0

22.8

II764S-M16

12.7

15/16

25.0

28.7

38.8

24.4

REDUCING UNION TEE 764R

E N

N W

A D

N1 E1 I

I1 A1

Product Code Stainless Steel

II764RS-M12M12M10 †

764R Reducing Tee - All Tube (Metric) A

Tube O.D.

Minimum opening

Wrench Flat

ins

36.1

33.3

22.9

16.8

7.1

13/16

20.6

25.9

† Note: This and many other combinations of this fitting are available to order on an indent basis. Please refer Pirtek

TUBE STUB CONNECTORS REDUCER 767T

Product Code Brass

767T Reducer - Tube (Metric) to Stub (inch) A

Tube O.D.

ins

II767TB-M606

3/8

9.53

4.8

32.5

39.9

15.3

II767TB-M1208

1/2

12.7

9.5

42.2

52.3

22.8

Product Code Brass

I L

II767TB-M6M12

767T Reducer - Tube (Metric) to Stub (metric) A

Tube O.D.

ins

4.8

38.9

46.3

15.3

LET-LOK® (METRIC) (IMPERIAL)

LET-LOK

Note: These and many other combinations of the fittings are available to order on an indent basis. Please refer Pirtek

Example: UNION TEE - 764

REDUCER - 767 T

Heat exchanger tee made with Let-Lok tube fittings

1.1/4 TURN (450º) ONLY

TUBE STUB CONNECTORS

767 T

TUBE TO MALE PIPE MALE CONNECTOR (BSPT) 768*B

LET-LOK® (METRIC) (IMPERIAL)

LET-LOK

P I

55°

'LR' marked on Hex

TUBE TO MALE PIPE

768*B Male Connector - Connects Tube (Metric) to Male BSPT Thread Product Code

Product Code

Stainless Steel

Brass

Tube O.D.

(BSPT)

Width Across Hex

1°47’

ins

II768SB-M602

II768BB-M602

R-1/8

4.8

25.4

32.8

15.3

II768SB-M604

II768BB-M604

R-1/4

4.8

30.5

37.9

15.3

II768SB-M606

II768BB-M606

R-3/8

4.8

31.0

38.4

15.3

II768SB-M802

II768BB-M802

R-1/8

4.8

26.7

34.2

16.2

II768SB-M804

II768BB-M804

R-1/4

6.4

31.2

38.7

16.2

II768SB-M1002

II768BB-M1002

R-1/8

4.8

28.7

36.3

17.2

II768SB-M1004

II768BB-M1004

R-1/4

7.9

33.3

40.9

17.2

II768SB-M1006

II768BB-M1006

R-3/8

7.9

33.3

40.9

17.2

II768SB-M1204

II768BB-M1204

R-1/4

7.1

33.3

43.4

22.8

II768SB-M1206

II768BB-M1206

R-3/8

9.5

33.3

43.4

22.8

II768SB-M1208

II768BB-M1208

R-1/2

9.5

30.9

49.0

22.8

Reference Specifications: DIN - ISO 2999 BS - 21 JIS - B0203 ISO - 7/1 - BSP-T 55° Thread Angle Pitch measured in Threads Per Inch (TPI) Truncation of root and crest are round Taper angle 1° 47’

MALE CONNECTOR (NPT) 768*N

60°

768*N Male Connector - Connects Tube (Metric) to Male NPT Thread Product Code Stainless Steel

Tube O.D.

(NPT)

Width Across Hex

ins

II768SN-M602

1/8

4.8

25.4

32.8

15.3

II768SN-M604

1/4

4.8

30.5

37.9

15.3

II768SN-M802

1/8

4.8

26.7

34.2

16.2

II768SN-M804

1/4

6.4

31.2

38.7

16.2

II768SN-M1002

1/8

4.8

28.7

36.3

17.2

II768SN-M1004

1/4

7.9

33.3

40.9

17.2

II768SN-M1006

3/8

7.9

33.3

40.9

17.2

II768SN-M1204

1/4

7.1

33.3

43.4

22.8

II768SN-M1206

3/8

9.5

33.3

43.4

22.8

II768SN-M1208

1/2

9.5

30.9

49.0

22.8

1°47’

Thread Specifications: 60° Thread Angle Pitch measured in Threads Per Inch (TPI) Truncation of root and crest are flat Taper angle 1° 47’ American Standard Pipe Thread (NPT) NPT (National Pipe Tapered) is made to specifications outlined in ANSI B1.20.1

LET-LOK® (METRIC) (IMPERIAL)

LET-LOK

TUBE TO MALE PIPE N

MALE CONNECTOR BSPP 768*P

M L

768SP Male Connector - Connects Tube (Metric) to Male BSPP Thread Stainless Steel II768SP-M602

Tube O.D.

(BSPP)

14.0

24.9

7.1

32.3

15.3

Width Across Hex

ins

G-1/8

4.0

13.8

ins

Notes: Many combinations of this fitting are available to order on an indent basis. Please refer Pirtek. A Bonded Seal (Dowty Washer) is required to provide a seal.

TUBE TO MALE PIPE

Product Code

TUBE TO MALE PIPE MALE ELBOW (BSPT) 769*B

E N

LET-LOK速 (METRIC) (IMPERIAL)

LET-LOK

769*B Male Elbow - Connects Tube (Metric) to Male BSPT Thread

TUBE TO MALE PIPE

Product Code

Stainless Steel

Brass

Tube O.D.

(BSPT)

Width Across Hex

ins

II769SB-M602

II769BB-M602

R-1/8

4.8

1/2

12.7

19.6

27.0

18.8

15.3

II769SB-M604

II769BB-M604

R-1/4

4.8

1/2

12.7

19.6

27.0

23.4

15.3

II769SB-M802

II769BB-M802

R-1/8

4.8

5/8

15.9

21.3

28.8

19.8

16.2

II769SB-M804

II769BB-M804

R-1/4

6.4

5/8

16.0

21.3

28.8

24.4

16.2

II769SB-M1004

II769BB-M1004

R-1/4

7.1

11/16

17.5

23.9

31.5

26.2

17.2

II769SB-M1006

II769BB-M1006

R-3/8

7.9

13/16

17.5

20.6

31.5

26.2

17.2

II769SB-M1008

II769BB-M1008

R-3/8

7.9

15/16

23.8

25.9

33.5

33.0

17.2

II769SB-M1204

II769BB-M1204

R-1/4

7.1

13/16

20.5

25.9

36.0

28.2

22.8

II769SB-M1206

II769BB-M1208

R-1/2

9.5

15/16

24.0

25.9

36.0

33.0

22.8

II769SB-M1212

II769BB-M1212

R-3/4

9.5

1.1/8

28.6

29.7

39.8

36.8

22.8

MALE ELBOW (NPT) 769*N

E N

769*N Male Elbow - Connects Tube (Metric) to Male NPT Thread Product Code

Tube O.D.

(NPT)

Stainless Steel

Width Across Hex

ins

II769SN-M602

1/8

4.8

1/2

12.7

19.6

27.0

18.8

15.3

II769SN-M604

1/4

4.8

1/2

12.7

19.6

27.0

23.4

15.3

II769SN-M802

1/8

4.8

5/8

15.9

21.3

28.8

19.8

16.2

II769SN-M804

1/4

6.4

5/8

16.0

21.3

28.8

24.4

16.2

II769SN-M1002

1/8

4.8

11/16

17.5

23.9

31.5

21.6

17.2

II769SN-M1004

1/4

7.1

11/16

17.5

23.9

31.5

26.2

17.2

II769SN-M1006

3/8

7.9

13/16

17.5

20.6

31.5

26.2

17.2

II769SN-M1204

1/4

7.1

13/16

20.5

25.9

36.0

28.2

22.8

II769SN-M1206

3/8

9.5

13/16

20.5

25.9

36.0

28.2

22.8

II769SN-M1208

1/2

9.5

15/16

24.0

25.9

36.0

33.0

22.8

LET-LOK速 (METRIC) (IMPERIAL)

LET-LOK

TUBE TO MALE PIPE E

MALE RUN TEE (NPT) 771*N

771 Male Run Tee - Connects Tube (inch) to Male NPT Thread Product Code

Stainless Steel

Brass

II771SN-M1208

Tube O.D.

(NPT)

Width Across Hex

ins

1/2

12.7

1/2

.41

10.41

15/16

23.81

1.02

25.9

1.42

36.07

1.30

33.02

.90

22.9

Note: Many combinations of this fitting are available to order on an indent basis. Please refer Pirtek

MALE BRANCH TEE (NPT) 772*N E

E N

TUBE TO MALE PIPE

Product Code

772 Male Branch Tee - Connects Tube (Metric) to Male NPT Thread Product Code

Product Code

Stainless Steel

Brass

II772BB-M1608

Tube O.D.

(NPT)

Width Across Hex

ins

1/2

11.9

15/16

24.0

28.7

38.8

35.8

24.4

Note: Many combinations of the above fittings are available to order on an indent basis. Please refer Pirtek

TUBE TO PIPE ADAPTORS TUBE TO MALE PIPE ADAPTOR 739M

LET-LOK® (METRIC) (IMPERIAL)

LET-LOK

739M Male Adaptor - Tube (inch) to Male Pipe Thread Product Code

Stainless Steel

Brass

II739MBB-M604†

Tube O.D.

(BSPT)

Width Across Hex

ins

1/4

4.6

14.0

15.7

38.1

† These and many other combinations of this fitting, both BSPT and NPT, are available to order on an indent basis. Please refer Pirtek

FEMALE CONNECTOR 766*B

TUBE TO PIPE ADAPTORS

Product Code

I L

766*B Female Connector - Connects Tube (Metric) to Female Thread A

Tube O.D.

(BSPT)

Product Code

Stainless Steel

Brass

ins

II766BB-M604 †

R-1/4

4.8

28.4

35.8

15.3

II766BB-M606 †

R-3/8

4.8

30.2

37.6

15.3

II766SB-M1206 †

R-3/8

9.5

31.8

41.9

22.8

II766BB-M1208 †

R-1/2

9.5

36.6

46.7

22.8

Width Across Hex

† These and many other combinations of this fitting, both BSPT and NPT, are available to order on an indent basis. Please refer Pirtek

LET-LOK® (METRIC) (IMPERIAL)

LET-LOK

CAPS AND PLUGS CAP 7108

I L

7108 Cap - Capping End of Tube (Metric) Product Code

Stainless Steel

Tube O.D.

Width Across Hex.

ins

15.7

23.1

15.3

II7108S-M8

17.0

24.6

16.2

II7108S-M10

15.0

26.6

17.2

II7108S-M12

19.0

29.1

22.8

II7108S-M16

19.8

29.9

24.4

PLUG 7121 A

CAPS AND PLUGS

ins II7108S-M6

7121 Plug - Plugging Unused Port of Fitting (Metric) Product Code

Product Code

Stainless Steel

Brass

Tube O.D.

Width Across Hex.

ins

II7121S-M6

II7121B-M6 †

9/16

II7121S-M8

II7121B-M8 †

5/8

II7121S-M10

II7121B-M10†

3/4

II7121S-M12

II7121B-M12 †

7/8

II7121S-M16

II7121B-M16†

† These sizes are available to order on an indent basis. Please refer Pirtek

PLUG ASSEMBLY INSTRUCTIONS

1/4 TURN (90º) ONLY

HAM-LET速 (IMPERIAL)

HAM-LET

INSTRUMENTATION AND PROCESS VALVES

VALVES

Pirtek stock typically imperial tube and Ham-Let valves with NPT female threaded ends. Contact Pirtek for availability on metric O.D. tube, BSP ends, or male threads. Tube technical data can be found on page 6. Many additional Ham-Let valves and fittings beyond the scope of those documented here can be procured on an indent basis. Please consult Pirtek for assistance with applications not covered by the documented products.

HAM-LET® (IMPERIAL)

HAM-LET

H6800 / H6810 INSTRUMENTATION BALL VALVES

H6810 NPT Female

H6800 Let-Lok Ends

Features:

Seal Materials:

•

On/off-service ball valve with 2-way pattern

TFM1600 (PFA and PTFE composite)

•

Stainless Steel construction (or Brass to order)

•

MAWP 6000 psi (410 bar) (see graph)

•

MAWT 500ºF (260ºC) (see graph)

•

Variable end connection types and sizes from 1/16” to 3/4” 3mm to 18mm (unlisted sizes to order)

Excellent seat material for purity applications. Very low residual material during operation. Lower deformation ratio than PTFE, but higher pressure and temperature ratings than PTFE. Rated up to 410°F (210°C). Chemical resistance equal to PTFE material

•

Black nylon handle as standard (other colours and materials to order)

•

Viton O-Rings as standard

• • •

A high-performance instrumentation ball valve for general service and instrumentation panels The valves offer tight shutoff, long-life service and low operating torque Rated to max. 6000 psig (410 bar) for on/off service (3 way diverter service to order) Factory pressure tested with Nitrogen at 5.5 and 69 bar. Max. seat leakage 0.1 std. cc/min

VALVES

Description :

PCTFE (Kel-F®) (Pirtek standard supply) Excellent seat material for cryogenic applications such as Oxygen and Nitrogen. Suitable for low temperature applications down to -200ºC. PEEK (PolyEtherEtherKeton)

-34

TEMP. (ºC) 90 150

200

6000

410

5500

377

5000

343

309 PCTFE (KEL-F®)

274

3500

240

3000

205 PEEK®

2500

172

TFM 1600

2000

C Pressure (bar)

Pressure (psig)

4500 4000

Excellent seat material for high-pressure and high-temperature applications.Excellent chemical resistance. Can be used continuosly to 500ºF (260ºC) and in hot water or steam without permanent loss in physical properties. High strength for hostile enviroment and high pressure

250

137

1500

103

1000

500

Panel Hole Drill D

0 -30

100

200 300 TEMP. (ºF)

400

500

H6800 STAINLESS STEEL HIGH PRESSURE INSTRUMENTATION VALVE LET-LOK ENDS Product Code

Orifice in

IIH6800SLCSS-04

0.19

4.8

IIH6800SLCSS-06

0.19

IIH6800SLCSS-08

0.4

0.92

3.29

83.6

1.65

41.8

1.1

0.44

11.3

1.55

39.5

0.87

22.2

0.81

20.6

0.44

11.2

1.85

0.04

4.8

0.92

3.4

86.3

1.7

43.15

1.1

0.44

11.3

1.55

39.5

0.87

22.2

0.81

20.6

0.44

11.2

1.85

0.04

10.4

7.02

4.04 102.5 2.02 51.25 3.03

0.75

2.52

64.1

1.5

38.1

1.5

38.1

0.75

19.1

4.28 108.7 0.06

1 1.5

H6810 STAINLESS STEEL HIGH PRESSURE INSTRUMENTATION VALVE NPT FEMALE Product Code

Orifice in

IIH6810SNCSS-02 0.19

4.8

0.92

2.16

54.8

1.08

27.4

1.1

0.44

11.3

1.55

39.5

0.87

22.2

0.81

20.6

0.44

11.2

1.85

0.04

IIH6810SNCSS-04 0.19

4.8

0.92

2.5

63.6

1.25

31.8

1.1

0.44

11.3

1.55

39.5

0.87

22.2

0.81

20.6

0.44

11.2

1.85

0.04

IIH6810SNCSS-06 0.19

4.8

0.92

2.66

67.6

1.33

33.8

1.1

0.44

11.3

1.55

39.5

0.87

22.2

0.81

20.6

0.44

11.2

1.85

0.04

0.4

10.4

7.02

3.53

89.6

1.76

44.8

3.03

0.75

2.52

64.1

1.5

38.1

1.5

38.1

0.75

19.1

4.28 108.7 0.06

IIH6810SNCSS-08

1 1.5

HAM-LET® (IMPERIAL)

HAM-LET

H700 LEVER TYPE LOCKABLE BALL VALVE

H700 Let-Lok Ends

VALVES

Description :

Features:

•

Explosion Proof Stem

TFM1600 - a PTFE and PFA composite

•

A351 or 316 Stainless Steel construction (brass to order)

(Pirtek standard supply)

•

One piece ball valve with Let-Lok ends

•

Locking Handle in On and Off positions

•

MAWP 2000 psi (135 Bar)

•

MAWT 400ºF (204ºC)

•

Flow coefficient (Cv) 1.25 to 17.35

•

Size range: 1/4” to 1” (or 6mm to 25mm to order)

•

• • •

A moderate pressure instrumentation ball valve for general service and instrumentation panels The valves offer compact size of structure with relatively large ports, for high flow, tight shut-off, long life service and low operating torque Can be used for bi-directional flow Rated to max. 2000 psig (135 Bar) and performs on-off service Factory pressure tested with Nitrogen to 69 bar. Max. seat leakage 0.1 std. cc/min

Seat Material:

RPTFE - 15% Glass Fiber Filled PTFE

Temp.(°C) 93

149

204

151.7

2000

137.9

1800

124.1

1600

110.3

1400

96.5

1000

82.7

ial ter Ma at Se 00 ® 16 ial M ter Ma at Se

1200

68.9

800 600 400

Color (Off White). Short stand glass fibers are used as a reinforcement in valve seats. Adding reinforcements increases the pressure containing properties of PTFE by reducing its tendency to cold flow. Available only to special order

260

2220

55.2

Pressure (bar)

Pressure (psig)

-34 -18

Color (Bright White). An excellent seat material for purity applications, very low residual material during operation. It has lower deformation ratio than PTFE, but higher pressure and temperature rating than PTFE. Chemical resistance is equal to PTFE material

W (Hex)

41.1

27.6 13.8

200

0 -30

100

200

300

400

500

Temp.(°F)

H700 STAINLESS STEEL LOCKABLE BALL VALVE LET-LOK ENDS Product Code

Orifice

W (Hex)

IIH700SL-04

1.25

5.0

0.20

90.0

3.54

3.23

38.0

1.50

IIH700SL-06

2.50

7.0

0.28

90.0

3.54

3.23

40.0

1.57

IIH700SL-08

9.25

9.2

0.36

95.3

3.75

3.23

40.7

1.60

IIH700SL-12

12.65

12.5

0.49

113.4

4.46

3.23

44.5

1.75

IIH700SL-16

17.35

15.0

0.59

129.6

5.10

102

4.02

50.0

1.97

HAM-LET® (IMPERIAL)

HAM-LET

H300 / H310 INTEGRAL BONNET NEEDLE VALVES P

T min PANEL MOUNT THICKNESS

R OPEN Q PANEL HOLE DRILL

H300 Let-Lok Ends

H310 NPT Female

K2 K

Features:

Stems:

•

Straight pattern (angle pattern to order)

•

316 Stainless Steel construction (brass to order)

A Regulating - used where a degree of flow

•

MAWP 5000 psi (340 Bar)

•

MAWT 810ºF (435ºC)

•

Flow coefficient (Cv) 0.09 to 1.8

•

Size range: 1/8” to 3/4” (or 3mm to 12mm to order)

D Soft Seat - Requires a lower seating torque than

•

Round handles (metal to order)

a metal tip. 121ºC max temp.

•

Viton O-Ring as standard

• • • • • •

A high pressure instrumentation needle valve for shut-off service on instrumentation panels Compact structure size Relatively high flow regulation Long service life Rated to 340 bar service Suited for on-off service Factory pressure tested with Nitrogen to 69 bar. Max. seat leakage 0.1 std. cc/min

1.7

190

200

260

370

430

480

Orifice 0.375” 9.5 mm

1.4 FLOW DATA @ 37ºC

1.3

5000

345

GRAFOIL

310

4000

275

3500

240

3000

210

2500

170

P.T.F.E.

2000

140

1500

100

1000

500

0 100

200

300

400

500

600

700

800

1.2

Flow Coefficient (Cv)

380

4500 Pressure (Psig)

320

5500

-60 32

applications to extend valve life

1.5

Pressure (bar)

-51 0

control is required (Pirtek standard issue)

B V-Stem - for general purpose liquids and gases C Non - Rotating - typically for high cycle

Orifice 0.375” 9.5 mm

1.6

TEMP. (°C)

VALVES

Description :

1.1 1.0 0.9 0.8

Orifice 0.250” 6.4 mm

0.7 0.6

Orifice 0.250” 6.4 mm 0.172” 4.4 mm

0.5

0.172” 4.4 mm

0.4 0.3 0.2

0.080” 2.0 mm

0.1

0.080” 2.0 mm

900

TEMP. (°F)

No. of Turns Open

Vee & Soft Seal Stem Regulating Stem

H300 STAINLESS STEEL NEEDLE VALVE LET-LOK ENDS Product Code

Orifice in

Connection Size

K mm

M mm

N mm

2.83

0.27

0.56 14.3 0.47 11.9 1.97

50 15/16 23.8 0.79

3.25 82.6 0.27

1/2 2.82 71.6 1.41 35.8 1.41 35.8 1.41 35.8 1.88 47.7 0.56 14.3 0.47 11.9 1.97

50 15/16 23.8 0.79

3.25 82.6 0.27

IIH300SLRS-06 0.25 6.4 0.73 3/8

3/8

IIH300SLRS-08 0.25 6.4 0.73 1/2

2.6

1.3

1.77

Tmax

0.31 7.95 1.61

R Open

5/8 15.9 0.51

1/4 2.31 58.8 1.16 29.4 1.16 29.4 1.16 29.4 1.47 37.4 0.39

IIH300SLRS-04 0.17 4.4 0.37 1/4

P mm

Inlet Outlet

H310 STAINLESS STEEL NEEDLE VALVE NPT FEMALE Product Code

Orifice in

NPT Female

Thread Inlet Outlet

1.06

M mm

N mm

IIH310SNRS-04 0.25 6.4 0.73 1/4

1/4 2.12

IIH310SNRS-06 0.38 9.5

1.8

3/8

76.2 1.5 38.1 1.5 38.1 1.5 38.1 2.09 53.2 0.75

IIH310SNRS-08 0.38 9.5

1.8

1/2

76.2 1.5 38.1 1.5 38.1 1.5 38.1 2.09 53.2 0.75

P mm

1.53 38.9 0.56 14.3 0.47 11.9 1.97

S mm

Q mm

R Open mm

Tmax in

50 15/16 23.8 0.79

3.25 82.6 0.27

0.59 15.1 2.52

64 1.3/16 30.2 1.02

4.06 103.3 0.26 6.5

0.59 15.1 2.52

64 1.3/16 30.2 1.02

4.06 103.3 0.26 6.5

HAM-LET® (IMPERIAL)

HAM-LET

H99 SCREWED BONNET NEEDLE VALVES

H99 NPT Female

VALVES

Description :

Features:

Applications:

•

A general service valve of rugged design and construction

•

316 Stainless Steel Construction

•

PTFE Packing

Available in stainless steel to suit a wide range of services

•

MAWP 10,000 psi (680bar)

•

Working Temp. Range -51°C - 232ºC

•

Flow coefficient (Cv) 0.3 to 2.2

•

Sizes: 1/4” to 1”

•

Female NPT (socket weld to special order)

•

Metal Handles as standard

•

Variable Stem Range (to special order)

•

Factory Tested to 69 bar with Nitrogen- max. leak across seats 0.1 std cc/min.

• •

Capable of withstanding high pressures 1/4” -

10,000 psig max.

3/8” - 1”

6,000 psig max.

This valve is typically used in corrosive service, high pressure sampling systems, high pressure shut down systems and test stands

Stems: A Regulating - used where a degree of flow control is required B V-Stem (Pirtek standard issue) - for general purpose liquids and gases C Non - Rotating - typically for high cycle applications to extend valve life D Soft Seat - Requires a lower seating torque than a metal tip. 121ºC max temp.

Temp.(°C) -50

100

150

200

250

300

350

400

450

11000

10000

9000

8000

7000

6000

5000

R Open SOCKET WELD

PTFE 3/8”-1”

4000

Pressure (bar)

Pressure (psig)

PTFE 1/4” 9000

4000

3000

2000

1000

M V

0 -58

122

212

302

392

482

572

662

752

852

Temp.(°F)

H99 STAINLESS STEEL SCREWED BONNET NEEDLE VALVE NPT FEMALE Product Code

Orifice

Connection Size

R Open

Inlet

Outlet

IIH99SSNV-04

0.73

4.4

1/4” NPT-F

1.38

2.76

0.59

2.52

3.94

100

1.18

IIH99SSNV-06

0.28

3/8 NPT-F

1.28

32.5

2.56

0.59

2.52

3.94

100

1.18

IIH99SSNV-08

0.28

1/2 NPT-F

1.42

2.83

0.59

2.52

3.94

100

1.18

IIH99SSNV-12

0.39

3/4 NPT-F

1.62

3.23

0.79

3.23

4.8

125

1.57

IIH99SSNV-16

0.39

1” NPT-F

1.75

44.5

3.5

0.99

3.23

130

1.97

HAM-LET® (IMPERIAL)

HAM-LET

H400 / H410 STAINLESS STEEL CHECK VALVES

H400 Let-Lok Ends

H410 NPT Female

Features:

Cracking Pressures:

•

• •

Cracking Pressure

• •

A compact design for instrumentation panels and systems Provides an accurate operating point Normally closed. When differential pressure between inlet and outlet is higher than the set pressure of the spring, the loaded poppet will move backwards to provide a free passage of flow through the valve

• • • •

316 St.St. Construction (Brass to order) Moderate Pressure Characteristics (up to 3000 psi) Compact Design Interchangeable Parts Variable fixed cracking-pressure springs Viton O-Rings are supplied as standard. Please stipulate if other materials are required. (Ethylene Propylene, Buna-N, Kalrez, Neoprene)

The differential pressure between inlet and outlet, at which an initial flow is passing through the valve Reseal Pressure The differential pressure between outlet and inlet, at which no flow is passing through the valve Pirtek-supply valves pre set to 1/3 psi cracking pressure as standard. Other cracking pressures as tabulated below can be specified to order Cracking Pressure (psi)

C (HEX)

D (HEX)

VALVES

Description :

Reseal Pressure (psi)

Nominal

Range

Pressure

Up/Back

1/3

Up to 3

Back

Up to 4

Up to 6

Back

7-15

3 or more

20-30

17 or more

D (HEX) Max. Allowable Working Pressure (M.A.W.P.) * Size

psi

bar

1/8 - 1/4

3000

210

3/8 - 1/2

3000

210

3/4 - 1

2000

102

* Applicable for 316 Stainless Steel Body at 21°C

B A

H400 STAINLESS STEEL CHECK VALVE LET-LOK ENDS Product Code

Connection Size

M.A.W.P.

14.28

0.47

210

11/16

17.46

1.47

210

7/8

22.23

1.68

210

M.A.W.P.

0.47

210

Inlet

Outlet

IIH400SL1/3PSI-04

1/4 LET-LOK

2.38

60.5

0.98

5/8

15.88

9/16

IIH400SL1/3PSI-06

3/8 LET-LOK

2.5

63.5

0.98

24.9

11/16

17.46

IIH400SL1/3PSI-08

1/2 LET-LOK

3.03

1.28

32.6

15/16

23.8

bar

H410 STAINLESS STEEL CHECK VALVE NPT FEMALE Product Code

NPT Female Size

Inlet

Outlet

IIH410SN1/3PSI-04

1/4

2.07

52.5

1.1

3/4

19.05

bar

IIH410SN1/3PSI-06

3/8

2.03

51.5

1.34

34.1

7/8

22.23

1.47

210

IIH410SN1/3PSI-08

1/2

3.01

76.5

1.71

43.4

1.1/8

28.6

1.68

210

LET-LOK® (IMPERIAL) INSTRUMENTATION ALPHANUMERIC INDEX 50

IMPERIAL BULKHEAD CONNECTOR (TUBE X NPT) BULKHEAD UNION (TUBE X JIC MALE) BULKHEAD UNION (TUBE X TUBE)

IMPERIAL 28

MALE C’NECTOR (TUBE X PIPE BUTT WELD)

MALE ELBOW (TUBE X BSPT)

MALE RUN TEE (TUBE X BSPT)

VALVES 19

BALL VALVE LET-LOK

BALL VALVE NPT

BALL VLV LET-LOK LEVER

CAP (TUBE)

NUT (TUBE)

CHECK VLV LET-LOK

FEMALE ADAPT. (TUBE X PIPE BSPT)

PLUG (TUBE)

CHECK VLV NPT

FEMALE BRANCH TEE (TUBE X BSPT)

PORT CONNECTOR (TUBE)

IIH300SLRS

FEMALE B’HEAD C’NECTOR (TUBE X BSPT)

REDUCER (TUBE X TUBE STUB)

IIH310SNRS

REDUCING PORT CONNECTOR (TUBE)

IIH400SL1/3PSI

REDUCING UNION (TUBE X TUBE)

IIH410SN1/3PSI

FEMALE CONNECTOR (TUBE X PIPE) FEMALE ELBOW (TUBE X BSPT)

24-25 26

FEMALE RUN TEE (TUBE X BSPT)

TEE REDUCER (TUBE X 3)

IIH6800SLCSS

FERRULE SET IMPERIAL

TUBE INSERT

IIH6810SNCSS

HOSE CONNECTOR (HOSE X TUBE)

UNION (TUBE X JIC MALE)

IIH700SL

II130LT

UNION (TUBE)

IIH99SSNV

II7102

UNION CROSS (TUBE)

NEEDLE VALVE 10000PSI (NPT)

II7108

UNION ELBOW (TUBE)

NEEDLE VLV LET-LOK

II7121

UNION TEE (TUBE)

NEEDLE VLV NPT

II739F

II739M

II760

CAP (METRIC TUBE)

INDEX IMPERIAL

II760I

FEMALE CONNECTOR (MET. TUBE X BSPT)

INDEX METRIC

32-33

II761

II7108

INDEX VALVES

II762

II7121

INSTALLATION

II762FLSJ

II739M

PRODUCT CODES

II763

II760

DESCRIPTIVE DESCRIPTION

METRIC

II764

II761

II764R

II762

II765

II763

II766

II764

II767M

II764R

II767P

II765

II767T

II766

II768

16-18

II767T

II768SN

II768

38-39

II768OB

II769

20-21

II771

II770

II772

II771

MALE ADAPT. (METRIC TUBE X PIPE)

II771F

MALE BRANCH TEE (METRIC TUBE X BSPT)

II772

MALE CONNECTOR (METRIC TUBE X PIPE)

38-39

II772F

MALE ELBOW (METRIC TUBE X BSPT)

II774

MALE RUN TEE (METRIC TUBE X NPT)

II774F

METRIC FERRULE SET

II774FL

NUT (METRIC TUBE)

38-39

II774M

PLUG (METRIC TUBE)

MALE ADAPT. (TUBE STUB X NPT)

REDUCER (TUBE X TUBE STUB)

MALE BRANCH TEE (TUBE X BSPT)

REDUCING UNION (METRIC TUBE X TUBE)

MALE B’HEAD CONNECTOR (TUBE X BSPT)

UNION (METRIC TUBE)

MALE CONNECTOR (TUBE X SAE / MS)

UNION ELBOW (METRIC TUBE)

MALE CONNECTOR (TUBE X BSPT)

UNION REDUCING TEE (METRIC TUBE)

MALE CONNECTOR (TUBE X NPT)

UNION TEE (METRIC TUBE)

2 4-5

3 4, 32