A61H/Y-160、A61H/Y-320型弹簧微启式空压机安全阀（带接管）适用于工作温度≤200℃的空气、氨、石油气等介质的设备和管路上，A61Y-160P、A61Y-320P型弹簧微启式空压机安全阀（带接管）适用于工作温度≤200℃含腐蚀性的气体或液体的的设备和管路上，作为超压珍爱装配。
A61H弹簧微启式安全阀相干型号：A61H-160 A61Y-320 A61Y-160P A61Y-320P
| 弹簧微启式安全阀重要零部件材料 Explanation of materials for main parts | |||
| NO. | Name of part | A61H-C A61Y-C Materials | A61Y-P Materials |
| 1 | Union | 20 | 1Cr18Ni9Ti |
| 2 | Union nut | 35 | 1Cr18Ni9Ti |
| 3 | Nozzle | 2Cr13 | 1Cr18Ni9Ti |
| 4 | Body | 35/35CrMoA | 1Cr18Ni9Ti |
| 5 | Disc | 2Cr13 | 1Cr18Ni9Ti |
| 6 | Guide | 2Cr13 | 1Cr18Ni9Ti |
| 7 | Spring | 50CrVA | 50CrVA Coated Teflon |
| 8 | Stem | 2Cr13 | 2Cr13 |
| 9 | Bonnet | ZG230-450 | 1Cr18Ni9Ti |
| 10 | Adjusting bolt | 45 | 2Cr13 |
| 11 | Cap | ZG200-400 | 1Cr18Ni9Ti |
| Sealing surface of material | "Y" Co Depositing stellite, "H" D507 Depositing D507 | ||
| 弹簧微启式安全阀形状尺寸和连接尺寸 Dimensions (mm) | ||||||||
| Nominal pressure PN(MPa) | Nominal diameter DN(mm) | Dimensions | ||||||
| do | D | D1 | D2 | L | L1 | H | ||
| 16 | 10 | 6 | 17 | 14 | 12 | 115 | 135 | 78 |
| 15 | 8 | 22 | 18 | 16 | 115 | 135 | 85 | |
| 20 | 10 | 28 | 22 | 20 | 115 | 135 | 135 | |
| 25 | 12 | 35 | 26 | 24 | 160 | 165 | 142 | |
| 32 | 10 | 6 | 22 | 14 | 12 | 115 | 135 | 80 |
| 15 | 8 | 25 | 17 | 15 | 115 | 135 | 90 | |
| 20 | 10 | 30 | 22 | 20 | 115 | 135 | 140 | |
| 25 | 12 | 38 | 26 | 24 | 160 | 165 | 148 | |
