Butterfly valve is mainly consist of the valve body, a rotating shaft, valve plate, seat and drive mechanism. The valve to achieve the purpose of opening and closing and flow control by driving mechanism driven shaft and plate rotation. It is mainly used to cut off and throttle the flow in the pipel......




| Valve body | Valve plate | Shaft | Bushing | Valve seat | |
| Material name | Material name | Material name | Material name | Material name | Applicable temperature |
| Gray cast iron | Electroplated ductile iron | Stainless steel | Lubricated bronze | Natural rubber | -20 -+85ºC |
| Ductile iron | Aluminum bronze | Carbon steel | Teflon | Hapron | -23-+121ºC |
| Aluminum bronze | CF8 Stainless steel | Ethylene propylene rubber EPDM | -45-+ 135ºC | ||
| ZG1Cr18Ni9Ti Stainless steel | Titanium steel | Chloroprene rubber | -7-+93ºC | ||
| CF8M Stainless steel | CF8M Stainless steel | Nitrile rubber NBR | -23-+100ºC | ||
| Carbon steel | Carbon steel | Wear resistant rubber | -10-+100ºC | ||
| CF3M Stainless steel | Fluor rubber | -23-+200ºC | |||
| Heat resistant ethylene propylene rubber | -23-+135ºC | ||||
| Teflon PTFE | -10-+150ºC | ||||







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