A38Y双联弹簧式安全阀适用于工作温度≤350℃的蒸汽、水等介质的设备和管路上。作为超压保护装置。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,其组合情况如下表:
型 | 相应的A48Y型 | A43Y型 | 相应的A47Y型 | A37Y型 | 相应的A47Y型 |
50 | 32×2 | 50 | 32×2 | 50 | 32×2 |
80 | 50×2 | 80 | 50×2 | 80 | 65×2 |
100 | 65×2 | 100 | 80×2 | 100 | 80×2 |
150 | 100×2 | 125 | 100×2 | 125 | 100×2 |
| | 150 | 125×2 | 150 | 125× |
A38Y双联弹簧式安全阀外形尺寸和连接尺寸
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 | 1097 | 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 | 1097 | 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 | 1097 |
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