Wafer Butterfly Valve
NO. | Item | Standard |
1 | SIZE | DN25-2000 |
2 | Face to Face | API609, BS5155, DIN3202, ISO5752 |
3 | Connection Flange | DIN, BS, UNI, ISO, ANSI, AS, JIS |
4 | Mounting Flange | ISO5211 |
5 | Working Pressure | PN10/PN16/PN25 |
6 | Application | Fresh Water, Sea Water, Oil, Gas, Acid, Food, Steam |
7 | Application Temperature | -210-250ºC |
8 | Shaft Disc Connection Type | Pin/Pinless/Double Half Shafts |
9 | Seat Type | Soft Back/Hard Back/Vulcanized |
10 | Connection Holes No. | 2/4 Holes |
11 | Body Type | 1/2 Piece |
NO. | PART | MATERIAL |
1 | Body | Cast Iron(GG25), Ductile Iron(GGG40/50), Carbon Steel(WCB A216), Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529), Bronze |
2 | Seat | NBR, EPDM/REPDM, PTFE/RPTFE, Viton, Neoprene, Hypalon, Silicon, PFA. |
3 | Shaft | SS416, SS431, SS304, SS316, Duplex Stainless Steel, Monel |
4 | DIsc | DI+Ni, Stainless Steel(SS304/SS316/SS304L/SS316L) , Duplex Stainless Steel(2507/1.4529), Bronze, (DI/WCB/SS) coated (Epoxy Painting/Nylon/EPDM/NBR/PTFE/PFA) |
5 | Pin | Stainless Steel |
6 | Bushing | PTFE, Bronze |
7 | O Ring | NBR, EPDM, FKM |
8 | Operation | Hand Lever, Gear Box, Electric/Pneumatic/Hydraulic Actuator |
Nominal Diameter | DN25-DN1200 | 1''- 48'' | DN25-DN1200 | 1''- 48'' |
Nominal Pressure | 1.0 Mpa | 150 Psi | 1.6 Mpa | 250 Psi |
Seal Test Pressure | 1.1 Mpa | 165 Psi | 1.76 Mpa | 275 Psi |
Shell Test Pressure | 1.5 Mpa | 225 Psi | 2.4 Mpa | 375 Psi |
Pressure Conversion | 1 Mpa=1, Bar=15Psi, PN20=Class 150 |
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