AH42F、A42F/液化石油气安全阀/、安全回流阀/主要零部件材料
| NO. | 零件名称 | AH42F-C A42F-C 材料 |
| 1 | 阀座 | 2Cr13 |
| 2 | 阀体 | WCB |
| 3 | 调节圈 | 2Cr13 |
| 4 | 反冲盘 | 2Cr13 |
| 5 | 阀瓣 | 2Cr13+PTFE |
| 6 | 导向套 | 2Cr13 |
| 7 | 阀盖 | ZG230-450 |
| 8 | 弹簧 | 50CrVA |
| 9 | 阀杆 | 2Cr13 |
| 10 | 调整螺杆 | 45 |
| 11 | 阀帽 | ZG200-400 |
■外形尺寸和连接尺寸
| 型号 | 公称通径 | do | D | K | g | g1 | b | f | f1 | Z-?d | DN' | D1 | K1 | g2 | b1 | f' | Z1-?d1 | L | L1 | ≈H |
| AH42F-16C A42F-16C | 20 | 15 | 105 | 75 | | 55 | 16 | 2 | | 4-14 | 25 | 115 | 85 | 65 | 16 | 2 | 4-14 | 110 | 95 | 378 |
| 25 | 16 | 115 | 85 | | 65 | 16 | 2 | | 4-14 | 32 | 140 | 100 | 78 | 18 | 2 | 4-18 | 110 | 95 | 378 | |
| 32 | 20 | 140 | 100 | | 78 | 18 | 2 | | 4-18 | 40 | 150 | 110 | 85 | 18 | 3 | 4-18 | 115 |