弹簧微启式安全阀主要零部件材料
| NO. | 零件名称 | A27H材料 | A27W-P材料 | A27W-R材料 |
| 1 | 阀体 | HT350 | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti |
| 2 | 阀座 | 35 | ZG1Cr18Ni9Ti | ZG1Cr18Ni9Ti |
| 3 | 调节圈 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 4 | 阀瓣 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 5 | 弹簧 | 50CrVA | 50CrVA包覆氟塑料 | 50CrVA包覆氟塑料 |
| 6 | 阀杆 | 2Cr13 | 2Cr13 | 1Cr18Ni9Ti |
| 7 | 调整螺杆 | 45 | 2Cr13 | 1Cr18Ni9Ti |
| 8 | 保护罩 | ZG200-400 | ZG200-400 | 1Cr18Ni9Ti |
| 密封面材料 | 堆焊D507 | 堆焊Co基硬质合金 | ||
外形尺寸和连接尺寸
| 公称通径 | 尺寸 | |||||
| do | Rc | L | L1 | G | H | |
| 15 | 10 | 1/2" | 40 | 65 | 1/2" | 135 |
| 20 | 15 | 3/4" | 45 | 70 | 3/4" | 140 |
| 25 | 20 | 1" | 45 | 76 | 1" | 155 |
| 32 | 25 | 11/4" | 55 | 85 | 11/4" | 170 |
| 40 | 32 | 11/2" | 55 | 85 | 11/2" | 310 |
| 50 | 40 | 2" | 67 | 100 | 2" | 322 |
| 65 | 50 | 21/2" | 76 | 112 | 21/2" | 344 |
| 80 | 65 | 3" | 110 | 135 | 3" | 395 |
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