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| 双联弹簧式安全阀(A37H-A43H)产品剖解图
 双联弹簧式安全阀(A38Y)产品剖解图
 双联弹簧式安全阀(A37H-A43H-A38Y)简介-A38Y-16C/25/40 A43H-16C/25/40 A37H-16C/25/40
双联弹簧式安全阀适用于工作温度≤350℃的蒸汽、空气等介质的设备和管路上。当设备和管路内压力超过允许值时,阀门自动开启,继而全量排放,当压力降低到规定值时,阀门自动关闭,保证设备和管路的安全运行。 说明,该阀门是在一个Y型接头上装设两个同样型号规格的安全阀,其公称通径是指Y型接头进口通径,组合情况如下: 主要部件材料说明:A38Y、A43H、A37H型安全阀除三通材料为WCB外,其余零件的材料均和A47H、A48Y型弹簧式安全阀相同。
双联弹簧式安全阀主要零部件材料 Explanation of materials for main parts
A38Y A38Y Type (DN) | A48Y Relevant A48Y Type (DN) |
| A43Y A43Y Type (DN) | A47Y Relevant A47Y Type (DN) |
| A37Y A37Y Type (DN) | A47Y Relevant A47Y Type (DN) | 50 | 322 |
| 50 | 322 |
| 50 | 322 | 80 | 502 |
| 80 | 502 |
| 80 | 652 | 100 | 652 |
| 100 | 802 |
| 100 | 802 | 150 | 1002 |
| 125 | 1002 |
| 125 | 1002 |
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| 150 | 1252 |
| 150 | 1252 | A38Y、A43H、A37H型双联安全阀是在Y型接头上装设两个同样规格的A48Y或A47H型安全阀而构成,其公称通径系列指Y型接头进口通径。 双联弹簧式安全阀外形尺寸和连接尺寸 Dimensions (mm)
Type | (DN) | do | D | K | g | g1 | b | f | f1 | Z- d | DN' | D1 | k1 | g2 | b1 | f' | Z1- d1 | L | L1 | L0 | h | H | A37H-16C A43H-16C | 50 | 25 | 165 | 125 | 100 |
| 20 | 3 |
| 4-18 | 32 | 140 | 100 | 78 | 18 | 2 | 4-18 | 115 | 110 | 165 | 235 | 547 | 80 | 40 | 200 | 160 | 135 |
| 20 | 3 |
| 8-18 | 50 | 165 | 125 | 100 | 16 | 3 | 4-18 | 135 | 120 | 190 | 285 | 795 | 80 | 50 | 200 | 160 | 135 |
| 20 | 3 |
| 8-18 | 65 | 185 | 145 | 120 | 18 | 3 | 4-18 | 140 | 130 | 205 | 310 | 835 | 100 | 65 | 220 | 180 | 155 |
| 22 | 3 |
| 8-18 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 160 | 135 | 255 | 355 | 890 | 125 | 80 | 250 | 210 | 185 |
| 22 | 3 |
| 8-18 | 100 | 220 | 180 | 155 | 22 | 3 | 8-18 | 170 | 160 | 260 | 410 | 1,170 | 150 | 100 | 285 | 240 | 210 |
| 24 | 3 |
| 8-23 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 190 | 190 | 275 | 430 | 1,240 | A37H-25 A43H-25 | 50 | 25 | 165 | 125 | 100 |
| 20 | 3 |
| 4-18 | 32 | 140 | 100 | 78 | 18 | 2 | 4-18 | 115 | 110 | 165 | 235 | 547 | 80 | 40 | 200 | 160 | 135 |
| 22 | 3 |
| 8-18 | 50 | 165 | 125 | 100 | 16 | 3 | 4-18 | 135 | 120 | 190 | 285 | 795 | 80 | 50 | 200 | 160 | 135 |
| 22 | 3 |
| 8-18 | 65 | 185 | 145 | 120 | 18 | 3 | 4-18 | 140 | 130 | 205 | 310 | 835 | 100 | 65 | 230 | 190 | 160 |
| 24 | 3 |
| 8-23 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 160 | 135 | 255 | 355 | 890 | 125 | 80 | 270 | 220 | 188 |
| 28 | 3 |
| 8-26 | 100 | 220 | 180 | 155 | 22 | 3 | 8-18 | 170 | 160 | 260 | 410 | 1,170 | 150 | 100 | 300 | 250 | 218 |
| 30 | 3 |
| 8-26 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 190 | 190 | 275 | 430 | 1,240 | A37H-40 A43H-40 | 50 | 25 | 165 | 125 | 100 | 88 | 20 | 3 | 4 | 4-18 | 32 | 140 | 100 | 78 | 16 | 2 | 4-18 | 115 | 110 | 165 | 235 | 547 | 80 | 40 | 200 | 160 | 135 | 121 | 22 | 3 | 4 | 8-18 | 50 | 165 | 125 | 100 | 16 | 3 | 4-18 | 135 | 120 | 190 | 285 | 795 | 80 | 50 | 200 | 160 | 135 | 121 | 22 | 3 | 4 | 8-18 | 65 | 185 | 145 | 120 | 18 | 3 | 4-18 | 140 | 130 | 205 | 310 | 835 | 100 | 65 | 235 | 190 | 160 | 150 | 24 | 3 | 4.5 | 8-23 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 160 | 135 | 255 | 355 | 890 | 125 | 80 | 270 | 220 | 188 | 176 | 28 | 3 | 4.5 | 8-26 | 100 | 220 | 180 | 155 | 22 | 3 | 8-18 | 170 | 160 | 260 | 410 | 1,170 | 150 | 100 | 300 | 250 | 218 | 204 | 30 | 3 | 4.5 | 8-26 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 190 | 190 | 275 | 430 | 1,240 | A38Y-16C | 50 | 20 | 165 | 125 | 100 |
| 20 | 3 |
| 4-18 | 40 | 150 | 110 | 85 | 16 | 3 | 4-18 | 198 | 100 | 165 | 225 | 636 | 80 | 32 | 200 | 160 | 135 |
| 20 | 3 |
| 8-18 | 65 | 185 | 145 | 120 | 20 | 3 | 4-18 | 230 | 120 | 190 | 265 | 817 | 100 | 40 | 220 | 180 | 155 |
| 22 | 3 |
| 8-18 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 293 | 140 | 265 | 265 | 921 | 150 | 80 | 285 | 240 | 210 |
| 24 | 3 |
| 8-23 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 320 | 175 | 250 | 420 | 1,097 | A38Y-25 | 50 | 20 | 165 | 125 | 100 |
| 20 | 3 |
| 4-18 | 40 | 150 | 110 | 85 | 16 | 3 | 4-18 | 198 | 100 | 165 | 225 | 636 | 80 | 32 | 200 | 160 | 135 |
| 22 | 3 |
| 8-18 | 65 | 185 | 145 | 120 | 20 | 3 | 4-18 | 230 | 120 | 190 | 265 | 817 | 100 | 40 | 230 | 190 | 160 |
| 24 | 3 |
| 8-23 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 293 | 140 | 265 | 265 | 921 | 150 | 80 | 300 | 250 | 218 |
| 30 | 3 |
| 8-26 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 320 | 175 | 250 | 420 | 1,097 | A38Y-40 | 50 | 20 | 165 | 125 | 100 | 88 | 20 | 3 | 4 | 4-18 | 40 | 150 | 110 | 85 | 16 | 3 | 4-18 | 198 | 100 | 165 | 225 | 636 | 80 | 32 | 200 | 160 | 135 | 121 | 22 | 3 | 4 | 8-18 | 65 | 185 | 145 | 120 | 20 | 3 | 4-18 | 230 | 120 | 190 | 265 | 817 | 100 | 40 | 235 | 190 | 160 | 150 | 24 | 3 | 4.5 | 8-23 | 80 | 200 | 160 | 135 | 20 | 3 | 8-18 | 293 | 140 | 265 | 265 | 921 | 150 | 80 | 300 | 250 | 218 | 204 | 30 | 3 | 4.5 | 8-26 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 320 | 175 | 250 | 420 | 1,097 |
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