零件名稱part name | 精鑄球墨鑄鐵 casting ductile seat | 碳鋼carbon steel | 不銹鋼 stainless steel | |||
QT | C | P | R | PT | PL | |
閥體、閥蓋 Body、cover | QT400 | WCB | CF8 | CF8M | Cf3 | CF3M |
球體sphere | QT400 | WCB | CF8 | CF8M | | CF3M |
內(nèi)襯材料閥座Lining material seat | FEP(F46)、PTFE(F4)、PFA(可溶性聚四氯乙烯)po(聚烯徑)PE(超高分子量聚乙烯) | |||||
填料壓蓋Packing gland | WCB | WCB | Cf8 | CF8M | Cf3 | CF3M |