wafer type butterfly valve
wafer type butterfly valve
wafer type butterfly valve
wafer type butterfly valve
wafer type butterfly valve

Wafer type butterfly valve

Design: API609, ASME B 16.34, BS EN593
Flange: ASME B 16.5, ASME B 16.47, BS EN1092
Face to Face: API 609, , BS EN 593 S13 S14 , and ISO5752
Materials: Body :WCB/CF8/CF8M/904L
Description
Standards
Remarks
parameter(Dimension: mm)
Description
Size DN100—DN1600mm
4inch—64inch
Pressure Limits PN10/PN16/PN25/150LB/300LB
Standard Designed: API609, ASME B 16.34, BS EN593
Face to Face: API 609, , BS EN 593 S20 S25
Flange End: GOST 33259 1092-1 
Inspection Test: API 598, BS EN 12266
Body Style Wafer & Lug
Materials Body: WCB/CF8/CF8M/904L
Disc :  WCB/CF8/CF8M/904L
Stem :SS410 /SS420/SS304/SS316/904L/ Duplex SS
Seat Materials:304/316/Graphite/Asbestos/PTFE
Features and benefits Metal to metal sealing or rubber sealing
Triple eccentric design
Bi-directional
Zero leakage
APPLICATIONS Water/sea water
Acid /Caustic /Chloride
Oil and so on
Temperature Limits From -59 up to 425
Drive Manual/Worm gear/Electric/Pneumatic
Standards
Design:
API609, ASME B 16.34, BS EN593
Flange:
ASME B 16.5, ASME B 16.47, BS EN1092
Face to Face:
API 609, , BS EN 593 S13 S14 , and ISO5752
Materials:
Body :WCB/CF8/CF8M/904L
Disc : WCB/CF8/CF8M/904L
Stem :SS410 /SS420/SS304/SS316/904L/ Duplex SS
Seat Materials:304/316/Graphite/Asbestos/PTFE
Remarks
Design and manufacture as per BS EN593
Face to face dimensions as per BS EN558 Series 25
Flange dimensions as per Gost 33259-2015
Pressure test as per BS EN12266-1
Pressure test PN10 PN16 PN25
Shell 15bar 24bar 37.5bar
Seal Water 11bar 17.6bar 27.5bar
Air 6bar 6bar 6bar

Media: Water, oil and gas Temperature: -15~350℃ Dimension: mm

Material for main parts
No. Part Name Material No. Part Name Material
1 Body WCB 7 Retainer Q235
2 Bushing Self-lubricating 8 Packing Graphite
3 Body seat SS304 9 Gland WCB
4 Disc seat SS304+XB450 10 Yoke WCB
5 Stem 2Cr13 11 Gear box Ductile iron
6 Disc WCB      
parameter(Dimension: mm)
DN PN LF D0 D1 4-Ød (Number of holes) H # H1 #
50 10 43 99 125 4-Ø18 90° 4 206 89
16
25
65 10 46 118 145 4-Ø18 90° 4 218 101
16
25 4-Ø18 45° 8
80 10 49 132 160 4-Ø18 45° 8 228 110
16
25
100 10 56 156 180 4-Ø18 45° 8 245 122
16
25 190 4-Ø22
125 10 64 183 210 4-Ø18 45° 8 273 136
16
25 220 4-Ø26
150 10 70 211 240 4-Ø22 45° 8 294 153
16
25 250 4-Ø26
200 10 71 266 295 4-Ø22 45° 8 365 202
16 4-Ø22 30° 12
25 310 4-Ø26

#           "H" and  "H1" for reference only.
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