D-Pro2

D-Pro Check Valves V33, VP33, VA33, VH36 Series Fixed and Adjustable Cracking pressure Pressures up to 3000 psig (206 bar) and 6000 psig (413 bar)

Catalog No V336-5.

March. 2007

Features Fixed and adjustable cracking pressure Reliable DK-LOK Tube Fitting, NPT and ISO pipe end connections Stainless and Brass material construction

Technical Information V33 Series

VP33 Series

VA33 Series

VP33A and VP33B

VA33 and VA33B

VH36A and VH36B

VH36C

SS316 & Brass 3000 psi (206 bar)

SS316 & Brass 3000 psi (206 bar)

SS316 6000 psi (413 bar)

SS316 5000 psi (344 bar)

VH36 Series

Valve Series V33A, V33B, V33C and V33C Maximum Operating Pressure @21 (70 )

SS316 & Brass 3000 psi (206 bar)

V33E and V33F SS316: 2000 psi (137 bar) Brass :150 0 psi(103 bar)

Viton O-ring: - 28 to 204 (- 18 to 399 ) NBR O-ring: -20 to 105 (-4 t o 221 )

Operating Temperature Ratings Nominal Cracking Pressure

Refer to spring table of each valve sereis

Cracking, Reseal and Back Pressure @ 20

(70 )

Cracking Pressure : The valve poppet is actuated when the pressure difference between the inlet and the outlet reaches the range of cracking pressure.

Reseal Pressure : Valves that have higher cracking pressure can be resealed to bubble-tight by the spring force. The reseal pressure is the pressure at the same flow direction, but lower than the cracking pressure.

Back Pressure : Valves that have cracking pressure 5 psig (0.34 bar) and lower may not be able to return to the bubble-tight seal. This may require back pressure to press the seal to form a bubble-tight contact in addition to the spring force.

Class Ratings Ratings are based on Viton O-rings in S316 valves and NBR in Brass valves Valve Series

V33A, V33B, V33C, V33D, VA33, and VP33 Series

V33E and V33F Series

SS316 VH36 Series

Working Pressure, psig (bar) Temperature -28 to 38

(-18 to100 )

S316

Brass

S316

Brass

VH36A & VH36B

VH36C

3000 (206)

3000 (206)

2000 (137)

1500 (103)

6000 (413)

5000 (344)

93

(200 )

2575 (177)

2600 (179)

1715 (118)

1300 (89)

5160 (355)

4290 (295)

175

(225 )

2510 (172)

2500 (172)

1670 (115)

1250 (86)

5030 (346)

4180 (288)

121

(250 )

2450 (168)

1630 (112)

4910 (338)

4080 (281)

148

(300 )

2325 (160)

1545 (106)

4660 (321)

3875 (267)

176

(350 )

2255 (155)

1490( 102)

4470( 308)

3720 (256)

190

(375 )

2185( 150)

1450( 99)

4375( 301)

3640( 250)

204

(400 )

4280( 294)

3560( 245)

Operation

V33 series

When the valve is not actuated for a period of time, it may require a higher cracking pressure than the set cracking pressure.

D-Pro check valves prevent reverse flow in circuits. Do not use them as relief valves.

D-Pro check valves are designed to prevent loss of media caused by failed connections and for uni-directional flow control of fluids as well as gases in chemical processing, power generation, oil and gas industries.

Working pressure up to 3000 psig (206 bar) Model Shown: V33 Series Check Valves V33C-D-8T-10-S V33C-F-6N-EP-1/3-S

Valve Cleaning and Factory Test Every component is cleaned, and packed in a plastic sealing bag to keep them from dust in the air, and then boxed for p from damage during transportation and storage. Every valve is factory tested for cracking and reseals performance.

rotection

THE POWER OF RELIABILITY DK TECH CORPORATION www.dklok.com

Check Valves D-Pro V33 Series Check Valves Feature: Working pressure up to 3000 psig (206 bar)

Materials of Construction Valve Body Materials

Component 1.

2.

3.

4.

5.

Material Grade/ASTM

Body Connector Poppet O-ring Spring

SS316 /A276, A479

Brass 360 /B16

Viton, optional Kalrez SS302/A313

NBR SS302/A313

Wetted parts are listed in blue.

Lubrication: * Silicon-based Lubricant for Poppet * Molybdenum Dry Film Lubricant for SS316 Body Threads

V33 Series Ordering Information and Table of Dimensions End Connections Inlet Outlet

Basic Ordering Number D-2TM-2NF-2ND-4TD-6MMD-4N4TM-4NF-4ND-6TD-10MM-6NF-6ND-8TD-12MM-8NF-8ND-10TD-12TM-12NF-12ND-16TM-16NF-16N-

V33A-

V33B-

V33C-

V33D-

V33E-

V33F-

1/8 Dk-Lok 1/8 Male NPT 1/8 Female NPT 1/4 Dk-Lok 6mm Dk-Lok 1/4 Male NPT 1/4 Male NPT 1/4 Female NPT 3/8 Dk-Lok 10mm Dk-Lok 3/8 Male NPT 3/8 Female NPT 1/2 Dk-Lok 12mm Dk-Lok 1/2 Male NPT 1/2 Female NPT 5/8 Dk-Lok 3/4 Dk-Lok 3/4 Male NPT 3/4 Female NPT 1 Dk-Lok 1 Male NPT 1 Female NPT

Orifice mm (in.)

Cv

Dimensions h-Hex

0.16

4.8 (0.19)

0.47

15.88 (5/8)

1/4 Dk-Lok

7.1 (0.28)

1.48

10.0 (0.39)

1.7

19.05 (3/4)

22.22 (7/8)

13.5 (0.53)

2.6

28.58 (1-1/8)

16.0 (0.63)

5.2

31.75 (1-1/4) 34.93 (1-3/8)

18.0 (0.71)

8.0 41.28 (1-5/8)

mm (inch)

H-Hex

L

l

11.11 (7/16) 14.29 (9/16) 14.00 14.29 (9/16) 17.46 (11/16) 19.00 22.22 (7/8) 22.00 25.40 (1) 28.58(1-1/8) 38.1 (1-1/2) -

55.60 (2.19) 44.40 (1.75) 46.50 (1.83)

25.00 (0.98) -

60.00 (2.36)

25.00 (0.98)

56.40 (2.22) 53.40 (2.10) 56.80 (2.24) 65.50 (2.58)

-

27.10 (1.07)

55.50 (2.19) 63.80 (2.51) 80.20 (3.16) 74.40 (2.93) 84.70 (3.33) 91.80 (3.61) 110.70 (4.35) 105.30 (4.15) 103.00 (4.06) 121.10 (4.77) 116.20 (4.57) 111.40 (4.39)

-

36.20 (1.43) -

48.10 (1.89) 67.00 (2.64) -

68.40 (2.69)

All dimensions shown are for reference only and are subject to change. Dimensions with DK-LOK are in finger-tight position.

Spring Cracking, Reseal and Back Pressure @ 20

Cracking Pressure Ranges

Spring Nominal Cracking Pressure psig 1/3

2

bar 0.02

(70 )

psi 0

Reseal Pressure

Max. Pressure

Min. Pressure bar 0

psi 3

bar

psi

bar

Up to 6

0.41

0.21

back pressure Up to 5

1

0.07

0

0

4

0.28

3

0.21

2

0.14

7

0.48

0.34 back pressure

Up to 4

0.28 back pressure

10

0.69

7

0.48

15

1.03

3

0.21

25

1.72

20

1.38

30

2.07

17

1.17

50

3.45

40

2.76

60

4.14

35

2.41

75

5.17

60

4.14

90

6.20

53

3.65

100

6.89

80

5.51

120

8.27

70

4.82

Copyright 2001, 2002, 2004, 2006 and 2007. DK TECH, all right reserved.

R

Check Valves

D-Pro VP33 Series Check Valves Features:

O-ring seal blow-out proof design with precision machined O-ring holder allows extremely safe operation in gas high velocity.

One piece body construction.

Working pressure up to 3000 psig (206 bar)

Materials of Construction Valve Body Materials

Component

INLET

1.

2.

3.

4.

5.

6.

OUTLET

HEX L

Material Grade/ASTM

Body Poppet O-ring Holder Locking Screw O-ring Spring

SS316 /A276, A479

Brass 360 /B16

Viton, optional Kalrez SS302/A313

NBR SS302/A313

Wetted parts are listed in blue.

Lubrication: * Silicon-based Lubricant for Poppet * Molybdenum Dry Film Lubricant for S316 Body Threads

VP33 Series Ordering Information and Table of Dimensions End Connections Inlet Outlet

Basic Ordering Number M-4NM-4RF-4NF-4RMF-4NFM-4NM-8NF-8NMF-8N-

VP33A-

VP33B-

Dimensions

Cv

1/4" Male NPT 1/4" ISO Male Tapered 1/4" Female NPT 1/4" ISO Female Tapered 1/4" Male NPT 1/4" Female NPT 1/4" Female NPT 1 /4" Male NPT 1/2" Male NPT 1/2" Female NPT 1/2" Male NPT

mm (Inch) Hex.

L 41 (1.62) 61 64 44 58 58 94 72

0.35

1.20

(2.41) (2.54) (1.75) (2.29) (2.28) (3.71) (2.83)

14.28 (9/16)

19.05 (3/4)

22.22 (7/8) 26.98 (1-1/16)

All dimensions shown are for reference only and are subject to change.

Spring Cracking, Reseal and Back Pressure @ 20

psi 0

0.02

Reseal Pressure

Max. Pressure

Min. Pressure

bar

1/3

)

Cracking Pressure Ranges

Spring Nominal Cracking Pressure psig

(70

psi

bar 0

3

bar 0.21

psi

bar

Up to 6

0.41 back pressure

Up to 5

0.34

0

0

4

0.28

0.69

7

0.48

15

1.03

3

0.21

1.72

20

1.38

30

2.07

17

1.17

1

0.07

10 25

back pressure

VA33 Series Adjustable Check Valves Features Working pressure up to 3000 psig (206 bar) 3. Insert locking screw

8. O-ring

4. Insert

7. Spring H

Cracking pressure adjustable from 3 to 600 psig (0.2 to 41.3 bar)

Materials of Construction

5. Adjustable screw 6. Locking screw

INLET

OUTLET

2. Poppet

1. Body L

Component 1. Body 2. Poppet 3. Insert locking screw 4. Insert 5. Adjustable screw 6. Locking screw 7. Spring 8.O-ring

Valve Body Materials Material Grade/ASTM

SS316 /A276, A479

Brass 360 / B16

SS302/A313 Viton NBR

Wetted parts are listed in blue.

Lubrication:Silicon-based Lubricant for Poppet Molybdenum Dry Film Lubricant for S316 Body Threads

3

Check Valves VA33 Series Ordering Information and Table of Dimensions Basic Ordering Number F-4NM-4NM-4RM-8NM-8R-

VA33A-

VA33B-

Cv

End Connections 1/4" 1/4" 1/4" 1/2" 1/2"

Female NPT Male NPT Male BSPT Male NPT Male BSPT

0.35

1.2

Spring Cracking Pressure Range Desingntor

mm

L inch

h

75.7 41.1 41.1 65 65

2.98 1.62 1.62 2.56 2.56

3/4 9/16 9/16 7/8 7/8

Cracking pressure Range psig Bar 3 to 50 50 to 150 150 to 350 350 to 600

Designator

0.2 to 3.4 3.4 to 10.3 10.3 to 24.1 24.1 to 41.3

3 50 150 350

All dimensions shown are for reference only and are subject to change. Dimensions with DK-LOK are in finger-tight position.

How to Order To complete ordering number, add adjustable spring designator to the basic ordering number and then specify valve material designator.

Example : VA33A-F-4N-3S

How to adjust cracking pressure Step 1

Step 2 OUTLET Adjustable screw Locking screw

INLET

Step 3 OUTLET

OUTLET Adjustable screw Locking screw

INLET

INLET

Locking screw

Allen key

Gently push the allen key up to adjustable screw Adjust cracking pressure by turning adjustable and locking screw.

To increase cracking pressure. turn allen key clockwise.

To decrease cracking pressure. turn allen key counter-clockwise.

Sllghtly unscrew the locking screw by turning counter-clockwise.

Move out allen key up to screw.

Lock out locking screw by turning allen key clockwise.

VH36 Series Check Valves Features High pressure 6000 psig (413 bar) O-ring seal blow-out proof design with precision machined O-ring groove allows extremely safe operation in high gas velocity.

Models Shown: VH36B-D-8T-5-S VH36C-F-12N-KZ-5-S

Materials of Construction Valve Body Materials Material Grade/ASTM

Component

INLET

1.

2.

3.

4.

5.

6.

7.

8.

OUTLET

H

L1

h

Body Connector Poppet Bonded seal Spring Indicator ring O-ring Backup ring

SS316 /A479, A276 Viton, optional Kalrez SS302 /A313 SS316 /A276 Viton PTFE /D1710

9. 10. 11. Dk-Lok Front & Back ferrule, Nut

L

SS316 /A479, A276

Wetted parts are listed in blue.

Lubrication: * Silicon-based Lubricant for Poppet * Molybdenum Dry Film Lubricant for S316 Body Threads

VH36 Series Ordering Information and Table of Dimensions Basic Ordering Number

VH36A-

4

End Connections

Cv

Dimensions

mm (inch)

L 57.7 (2.27)

L1 26.4 (1.04)

1/4" Dk-Lok

61.7 (2.43)

26.4 (1.04)

6 mm Dk-Lok

61.7 (2.43)

26.4 (1.04)

F-4N-

1/4" Female NPT

54.1 (2.13)

-

11/16

M-2N-

1/8" Male NPT

45.5 (1.79)

26.4 (1.04)

11/16

M-4N-

1/4" Male NPT

55.1 (2.17)

26.4 (1.04)

11/16

F-4R-

1/4" ISO Female Tapered

57.9 (2.28)

-

11/16

M-4R-

1/4" ISO Male Tapered

55.1 (2.17)

26.4 (1.04)

11/16

D-2T-

1/8" Dk-Lok

D-4TD-6M-

0.67

H 7/16

h 11/16

9/16

11/16

14

Pressure Rating, psig (bar)

11/16 6000 (413)

Check Valves Basic Ordering Number

VH36B-

VH36C-

End Connections

Cv

Dimensions

mm (inch)

L

L1

H

h

D-6T-

3/8" Dk-Lok

69.9 (2.75)

31.2 (1.23)

11/16

1

D-8T-

1/2" Dk-Lok

75.2 (2.96)

31.2 (1.23)

7/8

1

D-8M-

8 mm Dk-Lok

68.6 (2.70)

31.2 (1.23)

16

1

D-10M-

10 mm Dk-Lok

71.1 (2.80)

31.2 (1.23)

19

1

D-12M-

12 mm Dk-Lok

75.2 (2.96)

31.2 (1.23)

22

1

F-6N-

3/8" Female NPT

64.8 (2.55)

-

F-8N-

1/2" Female NPT

M-6N-

3/8" Male NPT

1.8

77.0 (3.03) 59.9 (2.36)

31.2 (1.23)

Pressure Rating, psig (bar)

6000 (413)

1

5000 (344)

1-1/16

4600 (316)

1

6000 (413) 6000 (413)

M-8N-

1/2" Male NPT

69.3 (2.73)

31.2 (1.23)

1

F-8R-

1/2" ISO Female Tapered

83.6 (3.29)

-

1-1/16

4600 (316)

M-8RD-12T-

1/2" ISO Male Tapered 3/4" Dk-Lok

69.3 (2.73) 89.4 (3.52)

1.23 (31.2) 45.2 (1.78)

6000 (413)

1-1/8

1 1-5/8

D-16T-

1" Dk-Lok

98.6 (3.88)

45.5 (1.79)

1-1/2

1-5/8

4700 (323)

D-22M-

22 mm Dk-Lok

88.4 (3.48)

45.5 (1.79)

32

1-5/8

5000 (344)

D-25M-

25 mm Dk-Lok

98.6 (3.88)

45.5 (1.79)

40

1-5/8

5000 (344)

F-12N-

3/4" Female NPT

82.0 (3.23)

82.0 (3.23)

1-5/8

4300 (296)

F-16N-

1" Female NPT

97.3 (3.83)

97.3 (3.83)

1-5/8

4100 (282)

M-12N-

3/4" Male NPT

M-16N-

1" Male NPT

4.7

5000 (344)

83.6 (3.29)

45.5 (1.79)

1-5/8

5000 (344)

93.2 (3.67)

45.7 (1.80)

1-5/8

5000 (344)

F-12R-

3/4" ISO Female Tapered

90.2 (3.55)

90.2 (3.55)

1-5/8

4300 (296)

F-16R-

1" ISO Female Tapered

97.3 (3.83)

97.3 (3.83)

1-5/8

4100 (282)

M-12R-

3/4" ISO Male Tapered

85.1 (3.35)

45.5 (1.79)

1-5/8

5000 (344)

M-16R-

1" ISO Male Tapered

93.2 (3.67)

45.7 (1.80)

1-5/8

5000 (344)

All dimensions shown are for reference only and are subject to change. Dimensions with DK-LOK are in finger-tight position.

Spring Cracking, Reseal and Back Pressure @ 20

psi

psi

bar

0

0.02

Reseal Pressure

Max. Pressure

Min. Pressure

bar

1/3

)

Cracking Pressure Ranges

Spring Nominal Cracking Pressure psig

(70

0

3

bar 0.21

psi

bar

Up to 6

0.41 Back pressure

Up to 5

0.34

1

0.07

0

0

4

0.28

5

0.34

3

0.21

9

0.62

10

0.69

7

0.48

15

1.03

3

0.21

25

1.72

20

1.38

30

2.07

17

1.17

Back pressure Up to 2

0.14 Back pressure

Optional Features Seal Materials O-ring Seal Material

Designator

Temperature Rating Viton is standard for S316 valves and NBR is standard for Brass valves

NBR

BN

Viton*

VT

-28 to 204

(-18 to 399

)

EPDM

EP

-45 to 135

(-49 to 275

)

Kalrez*

KZ

-20 to 315

(-22 to 599

)

-20 to 105

(-4 to 221

)

* Viton and Kalrez: TM Dupont

Recommendation of seal material application.

NBR

Petroleum-based hydraulic and lubricating oils, animals and vegetable oils, acetylene, alcohols, water, air, alkalis, feul oils and many other media.

Viton

High-quality compounds for high temperatures. Synthetic and hydraulic fluids; a wide range of chemicals, heavily oxidizing acids, suitable for vacuum.

EPDM

Chemical resistance: nonflammable hydraulic fluids (Skydrol, Pydraul, Lindol, Cellulube 150, phosphoric esters), pure aniline, fire extinguisher liquids (chlorobromo-methane), acids; excellent resistance to hot water and steam.

Kalrez

Superior compounds for high temperature and most chemicals. This compound combines the chemical properties of PTFE (Teflon) with the mechanical properties of Viton.

5

Check Valves Spring and seal kits Spring Kit

Seal Kit

To order spring kit, prefix CVS and select check valve series as well as spring nominal cracking pressures.

Examples; CVS-V33A-1/3: 1/3 psi spring for V33A series CVS-VP33B-1: 1 psi spring for VP33B series CVS-CH36A-3: 3 psi spring for CH36A series

To order seal kit, prefix CVO and select valve series as well as seal designator.

Examples; CVO-V33A-BN: NBR O-ring for V33A series CVO-VP33B-VT: Viton O-ring for VP33B series VH36 series seal kit is not available.

Exotic alloy valves for Sour Gas Service.

Cracking of low or high strength materials in the presence of hydrogen sulfide and water in combination with a tensile stress is called sulfide stress cracking (SCC).

For use valves in sour gas, exotic alloy materials are selected according to NACE MR0175. Please consult your local Dk-Lok distributor for further details.

How to Order Select valve, applicable seal, spring nominal cracking pressure, and body material.

V33A-D-4T-

1/3-

VP33B-F-8NVH36C-D-16TSpring Nominal Cracking Pressure Designator 1/3: 1/3 psi 1: 1 psi 3: 3 psi 10: 10 psi 25: 25 psi

S

BN1-

VT3-

B S

KZO-ring Seal Material Designator Bonded Seal Designator for VH36 Series

Valve Material Designator S: 316 stainless steel B: Brass

NBR: Nil for Brass Valve NBR: BN Viton: Nil for S316 Valve Viton: VT EPDM: EP Kalrez: KZ

Note: NBR O-ring is standard for Brass valves and Viton O-ring is standard for 316 stainless steel valve.

We reserve the right to change specifications stated in this catalog for our continuing program of improvemint.

Safe Valve Selection The selection of a valve for any application or system design must be considered to ensure safe performance.

Valve function, valve rating, material compatibility, proper installation, operation and maintenance remain the sole responsibillty of the system designer and the user. Dk Tech accepts no liability for any improper selection, installation, operation or maintenance.

DK TECH Trademarks THE POWER OF RELIABILITY DK TECH CORPORATION www.dklok.com

Mailing Address 826, Naesam-Ri, Juchon-Myeon, Gimhae-City, Gyeong Nam, Korea 621-841

DK TECH contact information Tel. (82) 55-338-0114 Fax (82) 55-338-6745 E-mail: sales@dklok.com

For Dk-Lok International USA customers Tel. (82) 55-338-0031/2 Fax (82) 55-338-6746 E-mail: dklok@dklok.com

V63/V66 Series Relief Va lves Working pressure 3000 psig (206 bar) and 6000 psig (413 bar) Catalog No. V63/V66-5 Jan.2007

Technical Data

V63 Series for working pressure 3000 psig (206 bar) Cap Plug

V63 Series Technical Data

Cracking pressure adjusting Cap

Maximum working pressure: 3000 psig (206 bar) Cracking pressure range: 10 to 250 psig (0.68 to 17.2 bar)

V63 yellow label identifies the loaded spring

Table 1. V63 Series Spring Designator

Adjustable spring for a specific cracking pressure

Cracking Pressure

Spring Designator

Locking Nut Wire loc ki ng hol e Bonnet

10 to 250

RVS-L

Outlet

Poppet

Color Code

bar

psig

0.68 to 17.2

Red

Orifice: 4.8 mm (0.19 in.)

Cv =0.60

Stem seal Body

V63/66 Series Temperature Rating

Inlet

O-ring seal

Temperature Rating ℃ (℉)

Seal Material

V66 Series for working pressure 6000 psig (413 bar)

Viton (Standard) Buna N Ethylene Propylene (EPDM)

Cap Plug Cracking pressure adjusting cap

-28 ~ 204 (-20 ~ 400) -20 ~ 105 (-68 ~ 221) -45 ~ 135 (-49 ~ 275)

V66 Series Technical Data Maximum working pressure : 6000psig (413bar) Orifice size: 4.8 mm (0.19 in.)

Cv =0.41 Cracking pressure range : 50 to 6000psig (3.4 to 413bar)

V66 red label identifies the loaded spring Adjustable spring for a specific cracking pressure Locking Nut

Table 2. V66 Series Spring Designator

Wire locking hole

Outlet

Bonnet

Cracking Pressure psig bar

Spring Designator

Color Code

Spring Designator

Cracking Pressure psig

Color Code

bar

Poppet

RVS-A

50 to 350

3.4 to 24

White

RVS-E

2250 to 3000

155 to 206

Green

Stem seal

RVS-B

350 to 750

24 to 51.6

Blue

RVS-F

3000 to 4000

206 to 275

Yellow

Inlet

Body

RVS-C

750 to 1500

51.6 to 103

Clear

RVS-G

4000 to 5000

275 to 344

Brown

O-ring seal

RVS-D

1500 to 2250

103 to 155

Black

RVS-H

5000 to 6000

344 to 413

Orange

3

Flow rate, std ft/ min 0.5

1

5

2

10

3

20

50

20

20

1

10

10 psig Cracking Pressure 20

50

100

200

500

1000

2000

Flow rate, std L/min

Flow rate, gal/min 0.1

0.2

0.5

1

5

2

10 300

20 15.19 bar (225 psig)

10.12 bar (150 psig)

100 6.75 bar (100 psig)

50

3.37 bar (50 psig)

2 20

1.68 bar (25 psig)

Inlet pressure, psig

200

10

5

100 8000

Inlet pressure, bar

200

F 241.21 bar (3500 psig) E 180.90 bar (2625 psig)

100

D129.92bar (1875 psig)

1000

C 77.53 bar (1125 psig) 50

500

B 37.90 bar (550 psig) 20

20 A 13.78 bar (200 psig)

10

100

5 50

A 3.44 bar (50 psig) 2

2

CRACKING PRESSURE SPRING DESIGNATOR

1 50

100

10 200

500

1000

2000

Flow rate, std L/min

Flow rate, U.S. gal/min

WATER

0.1

0.5

1

10

5

8000 400

H 379.04 bar (5500 psig) G 310.13 bar (4500 psig)

4000

F 241.21 bar (3500 psig) E 180.90 bar (2625 psig)

200

D 129.22 bar (1875 psig)

100

Inlet pressure, bar

2

V66 Series Flow Rate

Inlet pressure, bar

50

3.37 bar (50 psig)

1.68 bar (25 psig)

Inlet pressure, bar

V63 Series Flow Rate

100 6.75 bar (100 psig)

10

50 H 379.04 bar (5500 psig) G 310.13 bar (4500 psig)

4000

10.12 bar (150 psig)

5

10

500

200

10

5

5

1

300 15.19 bar (225 psig)

WATER

Flow rate, std ft /min

AIR

100

Inlet pressure, psig

0.2

C 77.53 bar (1125 psig)

1000 50 500

B 37.90 bar (550 psig) 20 A 13.78 bar (200 psig)

10

Inlet pressure, psig

0.1

Inlet pressure, psig

AIR

100

5 50

1

A3.38 bar (50 psig) 2

10 psig Cracking Pressure 0.5

1

10 2

5

10

20

Flow rate, L/min

CRACKING PRESSURE SPRING DESIGNATOR

1

10 0.5

1

2

5

10

20

30

Flow rate, sstd L/min

Factory Test Every valve is factory tested for cracking and reseal performance.

THE POWER OF RELIABILITY DK TECH CORPORATION www.dklok.com

Relief Valves

V63/V66 Series Operation

How To Adjust Valve Cracking Pressure The valve user shall set a specific cracking pressure of the valve supplied.

1. To increase the cracking pressure of the valve, turn the adjusting cap clockwise to compress the spring.

2. To reduce the pressure, turn counterclockwise.

3. Start the pump with the spring relaxed (eight threads showing with the Locking Nut at bottom), with the discharging port open, check the gauge pressure as you turn the adjusting cap clockwise to increase the pressure to the desired operating range.

4. If the system has more than one outlet, set the valve pressure with one outlet open, and then check again with all outlets open to make sure that the set pressure is within the desired operating range.

5. Set the Locking Nut and the wire to maintain the set cracking pressure.

Install the valve between the pump outlet as close as possible, and any shut-off device in the discharge line. The preferable mounting position is vertical with the adjusting cap at the top.

D-Pro relief valve bypasses the system fluid to prevent instrument or sensitive gauge in the system from excess pressure.

When the inlet pressure overcomes the set spring pressure on the poppet, the poppet lifts off the valve seat, allowing flow to bypass and thereby balance the system pressure.

If the valve has not been actuated for a long time, it may initially crack above the set cracking pressure.

Cracking pressure is only sensitive to inlet pressure, and is not affected by outlet pressure.

Cv reduction: Valve flow may be reduced by the restriction of pipe and tubing connected.

Materials of Construction Valve

Valve

outlet

H Max

H Max

outlet

Cap Plug

Polypropylene

Adjusting Cap

S316/ ASTM A276, A479

Spring

17-7 PH SS/ AMS 5678 D

Locking Nut Bonnet

inlet

S316/ ASTM A479, A276

Poppet

B

B

Stem & O-ring seal

Standard Viton*, optional EPDM and Buna N

Body

F316/ ASTM A182

inlet L

L

*Viton: TM of DUPONT

Ordering Information and Table of Dimensions Basic Ordering Number

V63and

V66-

End Connections Inlet

Outlet

D-4T-

1/4 Dk-Lok

D-6M-

6 mm Dk-Lok

Dimensions mm (in.)

Orifice mm ( in.)

H

B

L

37 (1.45)

39 (1.53)

38 (1.49)

40 (1.57)

105 (4.13)

44 (1.73)

42 (1.65)

98 (3.85)

36 (1.41)

42 (1.65)

94 (3.70)

32 (1.25)

100 (3.93)

D-8M-

8 mm Dk-Lok

D-8T-

1/2 Dk-Lok

D-12M-

12 mm Dk-Lok

MD-8N8T-

1/2 Male NPT

1/2 Dk-Lok

MD-8N12M-

1/2 Male NPT

12 mm Dk-Lok

MF-4N-

1/4 Male NPT

1/4 Female NPT

MF-4R-

1/4 Male ISO 7/1

1/4 Female ISO 7/1

MF-6N-

3/8 Male NPT

3/8 Female NPT

MF-6R-

3/8 Male ISO 7/1

3/8 Female ISO 7/1

MF-8N-

1/2 Male NPT

1/2 Female NPT

MF-8R-

1/2 Male ISO 7/1

1/2 Female ISO

4.8 ( 0.19 )

30 (1.18) 35 (1.37) 98 (3.85)

36 (1.41)

Model Shown: V66-D-8T-B-S

38 (1.49)

All dimensions shown are for reference only and are subject to change. Dimensions with Dk-Lok nuts are in finger-tight position.

How To Order Please select the desired valve basic ordering number, the applicable seal, spring designator and CE certified option from the table below.

Example: V66-D-4T - BN - B Seal Material Designator Nil: Standard “Viton*�

BN: Buna N EP: EPDM

Spring Designator Refer to Table 1, Table 2 for spring designator

-

S

-

Body Material S: S316 Ti: Titanium

Factory pressure set valve To order, specify the set pressure on the valve ordering number.

Example: V66-D-4T-60 bar-S, or V66-D-4T-870 psi-S

CE

Factory Pressure Set Relief Valve

CE certified CE: valve to 97/23/EC

Note : This label is on the adjusting cap

Valve without spring installed To order, do not specify spring designator on the ordering number.

Example: V66-D-4T-S. CAUTION : NO SPRING INSTALLED

Note : This label is on the adjusting cap

Spring for field assembly To order, select an applicable spring from the spring designator table 1 & 2. Example : RVS-A

Safe Valve Selection The selection of a valve for any application or system design must be considered to ensure safe performance.Valve function, valve rating, material compatibility, proper installation, operation and maintenance remain the sole responsibillty of the system designer and the user. Dk Tech accepts no liability for any improper selection, installation, operation or maintenance.

DK TECH Trademarks THE POWER OF RELIABILITY DK TECH CORPORATION www.dklok.com

Mailing Address 826, Naesam-Ri, Juchon-Myeon, Gimhae-City, Gyeong Nam, Korea 621-841

DK TECH contact information Tel. (82) 55-338-0114 Fax. (82) 55-338-6745 E-mail: sales@dklok.com

For International customers Tel. (82) 55-338-0031/2 Fax. (82) 55-338-6746 E-mail: dklok@dklok.com

V73/V76 Series Filters Pressure Ratings up to 3000 & 6000 psig

Catalog No. V73/V76-4 March. 2007

Filters for System Purity V76 Series Tee Filters

V73 Series In-line Filters

Features -

Traps fine contamination to maintain system purity Gas and liquid filtration Standard micron filtering ranges : 0.5, 2, 7, 15, 60 and 90 microns Replaceable S316 sintered elements S316 and Brass construction Choice of reliable Dk-Lok, NPT & ISO pipe end connections Heat Code Traceability

V73 Series In-line Filters

V76 Series Tee Filters

- In-line filters are for use where space is limited and when elements don't have to be replaced often.

- Compact in-line design with large filtration area - Maximum working pressure 3000 psig @100 (206 bar @37 )

- Replaceable Filter element without removing filter from installation - Safety union bonnet design for high pressure rating - Optional Bypass for sampling or purging of process fluid.

- Maximum working pressure 6000 psig @100 (413 bar @37 )

Body

Sintered Element Gasket

Inlet Outlet

Outlet

Spring Nut Inlet

Retainer Ring Cap

Outlet

Materials of Construction Component

V73 Series

Filtration Definitions V76 Series

Grade/ASTM Specification

S316 / A479 Brass / B16 S316 / A479 Brass / B16 Body S316 / A479 Brass / B16 Cap Stainless Steel Retainer Ring Nut S316 / A479 Brass / B16 Sintered Element S316 S316 S316 S316 S316 Spring S316/A240 Silver Plated Gasket

Filter Element :

The component within the filter which traps media contamination.

Filtration Area : The actual surface area of the filter element available to trap contamination.

Micron : A unit of measure to describe the mean pore diameter of the filter element or the mean particle diameter of media contamination.

One micron = 0.001mm or 0.00004 inch

Wetted components are listed in blue.

THE POWER OF RELIABILITY DK TECH CORPORATION www.dklok.com

Filters

73/76 Series

Elements V73 and V76 Series S316 Sintered Element Properties Shape-stability with self-supporting structural elements suitable under compression, vibration, and high impulse pressures.

High heat resistance and thermal stability up to 1500 ( 815 ).

High permeability with low-pressure drop.

Precise filtration because pore size and distribution are exact and uniform.

Chemical resistance against acids and caustic solutions in various ranges of pH.

Element Designator

Nominal Pore Size, m

Pore Size Range, m

Element Porosity

Cv Factor

05

0.5

0.5 - 2

17%

0.046

2

2

1-4

22%

0.056

7

7

5 - 10

27%

0.12

15

15

11 - 25

36%

0.13

60

60

50 - 75

44%

0.38

90

90

75 - 110

45%

0.50

Max. Pressure Differential Across Clean Filters at 21 (70 )

1160 psig (80.0 bar)

Needs to replace Filtering elements The sintered elements don't permit the contaminants in the gas and liquid to pass through the elements when they are bigger than the pore size of micron, these contaminants are trapped by element pores and it results in pressure buildup.

It comes earlier when the flow volume is high and the media is not clean. The filtering elements need to be replaced for minimum pressure drop as well as for system purity.

Note: When replace element, please clean metal components as well

73 Series In-line Filters h

73 series Flow Capacities

H

D-Pro Filter Series

L 73A Series

Ordering Information and Table of Dimensions V73 Series Filter End Connections Orifice Dimensions. mm (in.)

Ordering Number Inlet / Outlet mm (in.)

L H h V73A

V73B V73C V73D

D-2TF-2ND-3M D-4TM-4NF-4ND-6MD-6TD-8T-

1/8 DK-LOK 2.4 1/8 Female NPT (0.09) 3mm DK-LOK 1/4 DK-LOK 1/4 Male NPT 4.7 1/4 Female NPT (0.19) 6mm DK-LOK 7.1 (0.28) 3/8 DK-LOK 10.3 (0.41) 1/2 DK-LOK

59.7 ( 2.35 ) 7/16 54.9 ( 2.16 ) 60.5 ( 2.38 ) 12mm 74.9 ( 2.95 ) 9/16 68.3 ( 2.69 ) 72.9 ( 2.87 ) 75.2 ( 2.96 ) 14mm 81.5 ( 3.21 ) 11/16 88.6 ( 3.49 ) 7/8

9/16

73B Series

3/4 1 1

73C Series 73D Series

All dimensions shown are for reference only and are subject to change. Dimensions with Dk-Lok nuts are in finger-tight position.

P

Nominal Pore Micron

20 psi 60 psi Water GPM @21

05 2 7 15 60 90 05 2 7 15 60 90 05 2 7 15 60 90

0.01 0.11 0.14 0.17 0.21 0.28 0.06 0.34 0.57 0.71 1.27 1.70 0.13 0.37 0.91 1.19 2.83 3.25

0.44 0.26 0.33 0.39 0.55 0.55 0.19 0.94 1.42 1.42 3.61 4.60 0.44 1.20 2.41 2.85 7.34 8.32

120 psi (70 ) 0.13 0.44 0.53 0.64 0.77 0.66 0.32 1.42 2.19 2.30 5.04 6.68 0.83 1.75 3.83 4.49 10.95 12.05

73 Series Technical Data Filter Series V73A V73B V73C, V73D

2

C

Max. Pressure Rating at 38 psig (bar)

(100 )

S316

Brass

3000 (206)

3000 (206)

2500 (172)

2000 (137)

Copyright 2002, 2003 and 2007 Dk Tech Corporation. All Rights Reserved

Operating Temperature Rating S316 -28 to 482 (-20 to 900

Brass

)

-28 to 148 (-20 to 300

Filteration Area with Sintered Element mm(2 inch2) 354 (0.55)

)

894 (1.40) 1368 (2.12)

Filters

73/76 Series

76 Series Tee Filters Top mounting

L H

Bolt Circle Details: 25.4 mm (1.00 inch) for V76A 28.7 mm (1.13 inch) for V76B, V76C

Location of the 2 threaded holes

L1

Top View

Hole details: M5 x 0.8 pitch threads, 6.5 mm (0.25 inch) deep

Ordering Information and Table of Dimension V76 Series Filter Ordering Number

V76A

V76B

V76C

F-2ND-2TD-4TM-4NF-4ND-6MD-6TD-8MM-6ND-10MD-12MD-8TM-8N-

End Connections Inlet & Outlet 1/8" Female NPT 1/8" DK-LOK 1/4" DK-LOK 1/4" Male NPT 1/4" Female NPT 6mm DK-LOK 3/8" DK-LOK 8mm DK-LOK 3/8" Male NPT 10mm DK-LOK 12mm DK-LOK 1/2" DK-LOK 1/2" Male NPT

Orifice mm (in.)

4.4 (0.17)

5.4 (0.21) 6.4 (0.25)

Dimensions, mm (in.)

L L1 H 50.8 (2.00) 57.7 (2.27) 62.7 (2.47) 54.1 (2.13) 54.1 (2.13) 62.5 (2.46) 72.1 (2.84) 72.1 (2.84) 60.5 (2.38) 72.6 (2.86) 77.2 (3.04) 77.2 (3.04) 69.9 (2.75)

7/16 9/16 14mm 11/16 16mm 19mm 22mm 7/8 -

47.5 ( 1.87 )

56 ( 2.20 ) 56 ( 2.20 )

All dimensions shown are for reference only and are subject to change. Dimensions with Dk-Lok nuts are in finger-tight position.

76 Series Technical Data Filter V76A, V76B V76C

Max. Pressure Rating at 38 (100 ) psig (bar) S316

Brass

6000 (413)

2000 (137)

6000 (413)

2000 (137)

Operating Temperature Rating S316

Brass

-28 to 482 (-20 to 900

)

Tee Filter Operation When Install Tee Filter, orient the cap downwards to prevent contaminants from entering the system during replacing element.

76 series Flow Capacities

By-pass with female 1/8" or 1/4" NPT port are availale for sampling and purging of process fluid.

By-pass can be easily installed by removing Cap.

894 (1.40)

-28 to 148 (-20 to 298 )

D-Pro Filter Series

By-pass port

Filteration Area with Sintered Element mm2 (inch2)

V76A-F-2N V76A-D-2T

V76A-D-4T V76A-M-4N V76A-F-4N

V76A-D-6M V76A-D-6T V76B Series V76C Series

Nom. Pore Micron 05 2 7 15 60 90 05 2 7 15 60 90 05 2 7 15 60 90

1368 (2.12)

P 20 psi 60 psi 120 psi Water GPM @21 C (70 F) 0.06 0.11 0.14 0.17 0.21 0.28 0.06 0.34 0.57 0.71 1.13 1.56 0.13 0.37 0.91 1.19 2.12 2.40

0.19 0.26 0.33 0.39 0.55 0.55 0.19 0.94 1.42 1.42 2.96 3.72 0.44 1.20 2.41 2.85 5.26 6.02

0.32 0.44 0.53 0.64 0.77 0.66 0.32 1.42 2.19 2.30 4.27 5.37 0.83 1.75 3.83 4.49 7.34 8.33 3

Filters

73/76 Series

Ordering information Select the applicable filter, option(s) and body material from the designators listed below.

Example : V76A- D-4TBy-pass Option Designator

BF4N -

Sintered Element Designator Element Designator

Nil : No By-pass option

-

7

BF2N : By-pass with female 1/8 NPT BF4N : By-pass with female 1/4 NPT

05

Nominal Micron 0.5

2

2

7

7

15

15

60

60

90

90

Ordering the filters without element, please insert Example : V76A-D-4T-NE-S

NE

S Material Designator

S : S316

B : Brass

in ordering number.

For Field Assembly Replacement Kits Replacement elements, gasket, and spring are available for filed assembly. To order, select the applicable kit from the ordering number and designator listed below.

Sintered Element Kits To order, select the applicable Basic Kit Ordering Number from the table below. Use Designator 05, 2, 7, 60 or 90 as a suffix to the Basic Ordering Number. Example: FE73A-05.

Filter Series V73A

Basic Kit Ordering Number

Element Designator

Nominal Pore Size, m

Pore Size Range, m

05

0.5

05 - 2

2

2

1-4

7

7

5 - 10

15

15

11 - 25

60

60

50 - 75

90

90

75 - 110

FE73A-

V73B V76A

FE73B-

V73C, V73D V76B, V76C

FE73C-

Gasket and Spring Kits To order Gasket or Spring Kit for filed assembly, select Gasket or Spring Kit Ordering Number from the table below.

Filter Series

Gasket Kit Ordering Number

Spring Kit Ordering Number

V73A V73B V73C V73D V76A V76B V76C

9WSH-73A-S 9WSH-73B-S 9WSH-73C-S 9WSH-73D-S 9WSH-76A-S 9WSH-76B-S 9WSH-76C-S

9SPR-73A-2 9SPR-73B-2 9SPR-73C-S 9SPR-73D-2 9SPR-76A-2 9SPR-76B-2 9SPR-76C-2

We reserve the right to change the specifications stated in this catalog for our continuing program of improvement.

Safe Filter Selection The Selection of a Filter for any application or system design must be considered to ensure safe performance.

Filter function, Filter rating, material compatibility, proper installation, operation and maintenance remain the sole responsibillty of the system designer and the user. Dk Tech accepts no liability for any improper selection, installation, operation or maintenance.

DK TECH Trademarks THE POWER OF RELIABILITY DK TECH CORPORATION www.dklok.com

Mailing Address 826, Naesam-Ri, Juchon-Myeon, Gimhae-City, Gyeong Nam, Korea 621-841

DK TECK contact information Tel. (82) 55-338-0114 Fax (82) 55-338-6745 E-mail: sales@dklok.com

For Dk-Lok International USA customers Tel. (82) 55-338-0031/2 Fax (82) 55-338-6746 E-mail: dklok@dklok.com