序号 | 零件名称 | 灰铸铁 | 铸钢 | 不锈钢 | 超低碳不锈钢 | ||
z | c | p | r | pl | rl | ||
1 | 阀体、阀盖 | ht250 | wcb | cf8 | cf8m | cf3 | cf3m |
2 | 球 | wcb | wcb | cf8 | cf8m | cf3 | cf3m |
3 | 衬里层/阀座 | fep(f46) pctfe(f3)pfa(可洛性聚四氟乙烯) | |||||
4 | 填料压盖 | ht250 | wcb | cf8 | cf8m | cf3 | cf3m |
5 | 填料 | ptfe(f4) 聚四氟乙烯 ptfe(f4)聚四氟乙烯 | |||||
6 | 螺栓 | 35 | 35 | 1cr17ni2 | 1cr17ni2 | 1cr18ni9 | 1cr18ni9 |
7 | 螺母 | 45 | 45 | 0cr18ni9 | 0cr18ni9 | 0cr18ni9 | 0cr18ni9 |
8 | 手柄 | wcc | wcc | wcc | wcc | wcc | wcc |