VALVE COMPANY
WAFER & LUG TYPE BUTTERFLY VALVES
GENERAL CHARACTERISTICS: BS EN 593 CONSTRUCTION: Body: EN-GJL 250 Cast Iron (GG25) Disc : Stainless Steel 304 Seat : EPDM, NBR, FPM (Viton) Stem : X20Cr13 (Stainless Steel) COATING: Housing: Oven backed epoxy coating, minimum thickness 250 microns. OPERATING CONDITIONS: Maximum Operating Pressure 16 bars TESTS: FAF 3500/3600 Butterfly Valves are manufactured according to the requirements of European Directive 97/23/EC: Fluid of category 2 module A1, and category 3 modules B+C1. Tests are performed according to: EN 12266-1, EN 12266-2, ISO 5208
TABLE OF CONTENTS
DEFINITIONS AND GENERAL INFORMATION
2
MATERIALS AND CONSTRUCTION
3
Table of Torque Values SLEEVE MATERIALS
4
Application Temperatures FLOW COEFFICIENTS TABLE (Kv)
5
CODIFICATION
6
TECHNICAL CHARACTERISTICS
7
Sizes and Weight Values INSTALLATION RECOMMENDATIONS
8
BOLT/STUD MEASURES AND WORM GEAR DIMENSIONS
9
CERTIFICATES AND CONTACT INFORMATION
10
DEFINITIONS AND GENERAL INFORMATION WAFER Butterfly type (Sandwich Type) Butterfly valves starts, stops and regulates flow with the help of positioning the disc against flow. The disc stays in fluid during application, but special design and construction of the disc reduces the flow resistance to a minimum. Butterfly valve applications are easy and economic than most of other valve types, since this model is basic with less number of parts. Maintenance and service of butterfly type is considered to be easy due to relatively low unit weight of these valves.
Technical / Manufacturing Standards: FAF Butterfly valves are manufactured according to related ISO, EN and GOST standards. Valves: EN 593 Flanges: ISO 7005-2, EN 1092-2 Face to Face dimensions: EN 558-1 FAF offers Wafer and Lug type for butterfly valves. These two types are manufactured with same material, GG25 Body, stainless steel disc, stainless steel stem etc. Both types can be supplied with EPDM, NBR or VITON seats according to the customer request. Major difference bentween Wafer and Lug type butterfly valves, is their connection method. This difference results different application areas for two types.
FAF 3500 Series Wafer Type Butterfly Valves Butterfly valves are connected to the pipeline from the holes (lugs) surrounding the body. For wafer type, these holes are not circle and not threaded inside. The holes are suitable for both PN 10 and PN 16 flange connections. Since connection holes are not threaded this type must always be used between two flanges, therefore this type cannot be used as end-valve at the end of a pipeline.
FAF 3600 Series Lug Type Butterfly Valves Lug type construction looks the same as wafer types but one important difference results different application areas. Lug type butterfly valves are also connected to the pipeline from the holes surrounding the body. Different than wafer type, for lug type the holes are threaded. Instead of studs, bolts must be used in order to install this type to the pipeline. Since the bolts holds the valve from both directions, if the flange on one side of the valve is detached the valve will still hold. Because of this important feature this valve can be used as end-valve on an end of a pipeline. Again due to this feature this type can only be installed between PN 16 flanges.
Advantages of Wafer/Lug Type Butterfly Valves • Generally these valves are prefered because this type is economic. The distance between the flanges is shorter than other types, which makes valve lighter and more economic than others. • Seat of the valve covers not only the valve port but also the connection area between body and pipe flange. Because of its construction there's no need for additional gasket for installation. • The seat perfectly covers the iron valve port. Valve body does not contact with the fluid which results less rust and longer service life. • The stem is also protected from direct contact with the fluid. • Construction of butterfly valves does not have spaces, which fills with liquid during close position (such as ball valves) • The valve operates with quarter turn of the stem. Open and close position of the valve can be realized easily. • Butterfly valves are supplied with EPDM seat. EPDM satisfies general requirements of most of the applications, and it can easily be replaced if deformed • EPDM seats can be replaced with NBR or VITON for specific applications. • The valves can be automated. They're easily used with pneumatic or electrical actuators.
2
MATERIALS AND CONSTRUCTION
BODY
DISC
CHARACTERISTICS OF BODY MATERIAL Body Material
Applicable Temperature of the Environment
GG 25
From – 15 to +50îC
Stainless Steel
Average number of Open/Close Cycles
Guaranteed Open/Close Cycles
Metal Disc Elastomer Seat
Metal Disc Elastomer Seat
DN
PN 10
PN 16
5100
4250
65
80
80
100
100
150
3950
3500
3450
3000
3000
2500
1500
1800
65 80 100 125
1400
1250
1200
1000
400
1050
900
400
700
450
150 250 300
300 400
125
MM 40 50
200
200 250
PN 16
50
50
125
PN 10
DN
40
40 65
DN
Table of Torque Values (Nm)
150 200 250 300 350
450
2500
1900
450
900
500
1800
1500
500
700
600
500
600
1500
1400
600
600
550
600
3
Liquid Medium
Dry Medium
inches
5,42 6,55 8,59 11,53 19,89 30,96 51,30 95,82 161,48 245,10 624,55 845,69 1131,13 1431,37 2300,79
5,99 7,01 10,17 13,56 24,86 42,38 62,15 118,65 209,05 333,35 969,54 1306,96 1787,55 2308,03 3710,92
SLEEVE MATERIALS
FPM (Viton)
NBR
EPDM
EPDM -20 / +130°C Basic Characteristics Resistance to sunlight, weathering and ozone. Poor resistance to petroleum oils and fuel. Good heat and compression set resistance. Appropriate Usage Less than 10% acids, inorganic and organic alcohols, alkaline salts and solutions, dry bulk, hot-cold water, steam. Disadvantages Not suitable for hydrocarbons
EPDM
FPM (Viton®) -20 / +200°C Basic Characteristics Excellent temperature and chemical resistance. Excellent mechanical and physical properties, low compression set and low gas permeability. Appropriate Usage All Aromatic, Aliphatic and Halogenated Hyrocarbons Disadvantages Not appropriate for Ketones, Ester or in combination with Hot Water and Oil.
FPM (Viton®)
Nitrile (NBR) -20 / +90°C Basic Characteristics Good resistance to petroleum, hydrocarbons, fuels. Widely used with most oils, hydraulic fluids, alcohol. Appropriate Usage General Applications, Hydrocarbon Service, less than 40% Aromatics, Food&Beverage Applications. Disadvantages Poor resistance to sunlight, weathering and ozone.
NBR
4
Kv GRAPH - Kv TABLE
Position of disc
CV=1.17 KV
Kv / DN mm 40 50 65 80 100 125 150 200 250 300 350 400 450 500 600
inches
1 ½” 2” 2 ½” 3” 4” 5” 6” 8” 10” 12” 14” 16” 18” 20” 24”
KV 10° 0,06 0,07 0,14 0,92 1 2 3 4 8 8 11 12 15 20 28
20° 1,39 1,85 3,57 6,75 9 22 31 68 122 151 169 192 259 302 406
30° 2,93 4,38 9,95 20,43 29 64 102 207 387 430 484 577 789 1064 1263
40° 5,63 10,98 22,27 44,49 66 148 241 528 849 930 1011 1257 1707 2301 2721
5
50° 10,73 20,01 42,77 74,35 118 256 417 878 1507 1750 1973 2203 2931 3757 5105
60° 17 34 76 124 191 429 665 1318 2417 2607 3118 3773 5389 6524 8484
70° 27 55 122 223 310 723 1116 2202 4485 4831 5219 5948 8272 11201 13842
80° 51 99 207 365 538 1334 1905 4011 8149 8718 9788 11397 15570 20123 26775
90° 56 105 226 417 617 1424 2212 4391 9001 9756 10421 12146 16863 22795 27502
CODIFICATION
FAF 3
5
0
0
A
0
5 6
0 0
0 0
A A
0 0
Drives Butterfly Valve
Handle Bare Shaft Gearbox (Wormgear) Double-acting pneumatic actuator Single-acting pneumatic actuator
0 1 2
Electrical Actuator
5
3 4
Connection Types
Wafer Type Threaded lugs (Lug Type)
5 6
Materials of Disc Stainless steel 304 Al-Bronze Ductile Iron (Nickel Coated)
A B C
Operating Pressure Material of Seats
16 Bar
EPDM
0
NBR
1
FPM (Viton速)
2
Material of Body Cast Iron GG25 (EN GJL 250)
6
0
GG 25 GG 25
DIMENSION TABLE
40 50 65 80 100 125 150 200 250 300 350 400 450 500 600
138 161 175 181 200 215 225 241 296 336 370 400 422 490 575
75 80 91 95 115 134 138 174 198 234 284 310 328 390 456
33 43 46 46 52 56 56 60 68 78 78 88 104,6 127 154
45 55 70 80 101 126 151 200,5 250 300,5 340 400 440 500 600
4-9 4-9 4-9 4-9 4-9 4-9 4-9 4-11 4-11 4-11 4-13 4-18 4-18 4-22 4-22
50 / 70 50 / 70 50 / 70 50 / 70 70 70 70 102 102 102 125 140 140 165 165
90 90 90 90 90 90 90 125 125 125 150 175 175 210 210
110 125 145 160 180 210 240 295 355 410 470 525 565 650 770
22 22 22 22 24,5 29,5 29,5 35,5 39,5 41 72 73 102 135 135
11x11 11x11 11x11 11x11 14x14 14x14 17x17 17x17 22x22 22x22 22x27 -
30 30 30 30 30 30 30 30 30 30 46 46 52 48 48
d1
k
39 48 48
10 14 14
Wafer Weight Lug Weight
45 45 45 45 22,5 22,5 22,5 15 15 11,25 11,25 11,25 11,25 9 9
4,30 3,60 5,05 4,50 5,80 5,40 7,00 5,60 8,80 6,90 12,05 10,00 12,50 12,00 20,55 14,50 32,30 * 42,30 * 44,60 * 51,00 * 66,00 * 104,00 * 132,00 * 157,00 * 222,00 *
* After DN250 the weight values include the weight of gearbox 7
Recommended Stud and Bolt Dimensions WAFER Type
LUG Type
Studs
Bolts
Thread Diameter
Stud Diameter
Quantity (pieces)
Diameter x L1
M 16 M 16 M 16 M 16 M 16 M 16 M 20 M 20 M 24 M 24 M 24 M 27 M 27 M 30 M 33
16 16 16 16 16 16 20 20 24 24 24 27 27 30 33
4 4 4 8 8 8 8 12 12 12 16 16 20 20 20
M 16 x 100 M 16 x 110 M 16 x 120 M 16 x 120 M 16 x 130 M 16 x 130 M 20 x 140 M 20 x 150 M 24 x 160 M 24 x 170 M 24 x 170 M 27 x 200 M 27 x 220 M 30 x 260 M 33 x 290
40 50 65 80 100 125 150 200 250 300 350 400 450 500 600
Stud length
Diameter x L
Bolt Quantity
120 130 140 140 150 150 165 175 185 200 200 230 254 294 334
M 16 x 30 M 16 x 40 M 16 x 45 M 16 x 45 M 16 x 50 M 16 x 50 M 20 x 50 M 20 x 55 M 24 x 60 M 24 x 65 M 24 x 65 M 27 x 75 M 27 x 80 M 30 x 90 M 33 x 100
4x2 4x2 4x2 8x2 8x2 8x2 8x2 12x2 12x2 12x2 16x2 16x2 20x2 20x2 20x2
Sizes and Weight of Handles DN ìì (inches) 50(2") - 150(6") 200 (8'') - 300 (12'')
A
B
R
Weight (kg)
266,7
32
52
0,9
359
45
75,2
2,3
Sizes and Weight of Gearboxes DN ìì (inches) 50(2") - 150(6") 200(8") - 250(10") 300(12") - 350(14")
A
B
C
E
F
G
Ø
Weight (kg)
52
45
74
52
152,5
75
150
5,2
75
62,75
101
75
250
86
300
13
81
80
118
81
227
83
300
15
Sizes and Weight of Double-Reduction Gearboxes DN ìì (inches)
A
400 (16) - 500 (20) 600 (24)
B
C
D
E
F
56.50
178.50
121
115
104
56.50
197.50
142
144
130
Weight (kg)
H
L
Ø
174
125.50
66
300
56.90
174
145.50
66
300
72.37