| Customization: | Available |
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| Media: | Water |
| Temperature: | Ordinary Temperature |
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Wafer butterfly check valve is designed by our factory with foreian advanced structure, lt conforms to relevantnational standards and is an energy-saving product. This product has good check performance, safe and reliableThe flow resistance coeficient is smal. Mainly used in petroleum, chemical, food, medicine, textile. paper, watersupply and drainage, smelting and energy systems. Used as a one-way valve.
| NO | Part | Material | Remarks |
| 1 | Body | Cast lron | |
| Ductile Iron | |||
| Carbon steel | |||
| Stainless steel 304S | |||
| Stainless steel 316S | |||
| Aluminum bronze | |||
| 2 | Disc | Coated nylon | |
| Coated nickle | |||
| Stainless steel 304S | |||
| Stainless steel 316S | |||
| Duplex stainless steel | |||
| Aluminum bronze | |||
| 3 | Seat | NBR | 0°~80°C |
| EPDM | '-20 ~ 120°C | ||
| Heat proof EPDM | '-20°~ 140ºC | ||
| Neoprene | '-0°~ 80ºC | ||
| Silicone rubber | '-20°~180°C | ||
| Fluororubber | '-18°~ 204ºC | ||
| PTFE | '-250°~ 250°C |
| Nominal pressure | Nominal diameter | Test pressure(Mpa) | Applicable medium | Drive way | |
| PN(MPa) | DN(mm) | shell | Sea | Fresh water,sewage seawater air,steam,foodstuff,medlicine various oils acks ancalkais,etc. | Handle,worm andgear transmissionpower-driven angbeing pneumatic |
| 1 | 40-600 | 1.5 | 1.1 | ||
| 1.6 | 2.4 | 1.76 | |||
Design standard
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