Valves
BUTTERFLY VALVES
BUTTERFLY VALVES
Wafer Butterfly Valve
Technical Data
| Dn Nominal Diameter | 50(2″)~1000(40″) | 50(2″)~800(32″) | mm(inch) | |
| PN Nominal Pressure | 1.0 | 1.6 | MPa | |
| Testing Pressure | Shell | 1.5 | 2.4 | |
| Sealing | 1.1 | 1.76 | ||
| Working Temperature | ||||
| Suitable Mediums | Fresh Water, Sewage, Sea Water, Air, Vapour, Food, Medicine, Oils, Acids, Alkalis, Salts, etc. | |||
Material of Main Parts
| Body | Disc | Stem | Bushing | Seat | ||||
| Name | Code | Name | Code | Name | Name | Name | Code | Working Temp. °C |
| CAST IRON | Z | Plated Ductile Iron | B1 | Stainless Steel | Lubrized Bronze | NR | X1 | -20~+85 |
| Ductile Iron | Q | Aluminum Bronze | B2 | Carbon Steel | PTFE | Hypalon | X2 | -18~+15 Intermittence -18~+149 |
| Aluminum Bronze | T | ZG1Cr18Ni9Ti Stainless Steel | B3 | EPDM | X3 | -45~+135 Intermittence -50~+150 | ||
| ZG1Cr18Ni9Ti Stainless Steel | P | Titamium Steel | B4 | Neoprene | X4 | -7~+93 Intermittence -7~+107 | ||
| CF8M Stainless Steel | R | CF8M Stainless Steel | B5 | NBR | X5 | -12~+82 Intermittence -12~+93 | ||
| Carbon Steel | C | Carbon Steel | B6 | Wear-resistant Rubber | X6 | -10~+50 | ||
| CF8M Stainless Steel | B7 | VITON | X7 | -23~+150 | ||||
| Heat-resistant Rubber | X9 | -20~+150 | ||||||
| PTFE | F4 | +10~+150 | ||||||