弹簧全启封闭式高压安全阀说明：a42y-160/320适用于工作温度≤200℃的空气、氮气混合气等介质的设备或管路上。a42y-160p/320p、a42y-160r/320r适用于工作温度≤200℃有腐蚀性介质的设备或管路上，作为超压保护装置。
弹簧全启封闭式高压安全阀主要零部件材料
| no. | 零部件名称 | a42y-160 a42y-320 材料 |
a42y-160p a42y-320p 材料 |
a42y-160r a42y-320r 材料 |
| 1 | 法兰 | 35/35crmoa | 2cr13 | 1cr18ni12mo2ti |
| 2 | 阀座 | 2cr13 | 1cr18ni9ti | 1cr18ni12mo2ti |
| 3 | 阀体 | 40 | 1cr18ni9ti | 1cr18ni12mo2ti |
| 4 | 调节阀 | 2cr13 | 1cr18ni9ti | 1cr18ni12mo2ti |
| 5 | 阀瓣 | 2cr13 | 1cr18ni9ti | 1cr18ni12mo2ti |
| 6 | 反冲盘 | 2cr13 | 1cr18ni9ti | 1cr18ni12mo2ti |
| 7 | 导向套 | 2cr13 | 1cr18ni9ti | 1cr18ni12mo2ti |
| 8 | 阀盖 | zg230-450 | zg230-450 | zg230-450 |
| 9 | 阀杆 | 2cr13 | 1cr18ni9ti | 1cr18ni9ti |
| 10 | 弹簧 | 50crva | 50crva 包覆氟塑料 | 50crva包覆氟塑料 |
| 11 | 调整螺杆 | 45 | 2cr13 | 2cr13 |
| 12 | 阀帽 | zg200-400 | zg200-400 | zg200-400 |
| 13 | 密封面材料 | 堆焊 co 基硬质合金 | ||
| 型号 | 公称通径(dn) | do | d | m | k | d | z-φd | b | d1 | m1 | k1 | d1 | zrφd1 | b1 | l | l1 | ≈ h |
| a42y-160 | 15 | 8 | 20 | m24×2 | 60 | 95 | 3-18 | 20 | 29 | m42×2 | 80 | 115 | 4-18 | 22 | 95 | 100 | 220 |
| 20 | 8 | 27 | m33×2 | 68 | 105 | 3-18 | 20 | 29 | m42×2 | 80 | 115 | 4-18 | 22 | 95 | 100 | 220 | |
| 25 | 14 | 28 | m33×2 | 68 | 105 | 3-18 | 20 | 50 | m64×3 | 115 | 165 | 6-26 | 32 | 15 | 150 | 280 | |
| 32 | 15 | 37 | m42×2 | 80 | 115 | 4-18 | 22 | 50 | m64×3 | 115 | 165 | 6-26 | 32 | 15 | 150 | 390 | |
| 40 | 20 | 47 | m52×2 | 115 | 165 | 6-26 | 28 | 65 | m80×3 | 145 | 200 | 6-29 | 40 | 180 | 180 | 495 | |
| 50 | 25 | 59 | m64×3 | 115 | 165 | 6-26 | 32 | 80 | m100×3 | 170 | 225 | 6-33 | 50 | 165 | 165 | 400 | |
| a42y-320 | 15 | 8 | 27 | m33×2 | 68 | 105 | 3-18 | 20 | 29 | m42×2 | 80 | 115 | 4-18 | 22 | 95 | 100 | 220 |
| 20 | 8 | 30 | m33×2 | 75 | 110 | 3-18 | 22 | 29 | m42×2 | 80 | 115 | 4-18 | 22 | 95 | 100 | 220 | |
| 25 | 14 | 35 | m42×2 | 80 | 115 | 4-18 | 22 | 50 | m64×3 | 115 | 165 | 6-26 | 32 | 150 | 150 | 280 | |
| 32 | 15 | 41 | m48×2 | 95 | 135 | 4-22 | 25 | 50 | m64×3 | 115 | 165 | 6-26 | 32 | 150 | 150 | 390 | |
| 40 | 20 | 58 | m64×3 | 115 | 165 | 6-26 | 32 | 65 | m80×3 | 145 | 200 | 6-29 | 40 | 180 | 180 | 495 | |
| 50 | 25 | 70 | m80×3 | 145 | 200 | 6-29 | 40 | 80 | m100×3 | 170 | 225 | 6-33 | 50 | 165 | 165 | 400 | |
| a42y-400 | 32 | 15 | 41 | m48×2 | 95 | 135 | 4-22 | 25 | 50 | m64×3 | 115 | 165 | 6-26 | 32 | 150 | 150 | 397 |
