■主要零件及材料 Main parts and materials
零件名称part name | 精铸球墨铸铁 casting ductile seat | 碳钢carbon steel | 不锈钢 stainless steel | |||
QT | C | P | R | PT | PL | |
阀体、阀盖 Body、cover | QT400 | WCB | CF8 | CF8M | Cf3 | CF3M |
球体sphere | QT400 | WCB | CF8 | CF8M | | CF3M |
内衬材料阀座Lining material seat | FEP(F46)、PTFE(F4)、PFA(可溶性聚四氯乙烯)po(聚烯径)PE(超高分子量聚乙烯) | |||||
填料压盖Packing gland | WCB | WCB | Cf8 | CF8M | Cf3 | CF3M |