吴忠仪表厂法兰蒸汽安全阀详细介绍
A48Y法兰蒸汽安全阀适于温度《350℃的蒸汽、空气等介质的设备和管 路上，作为超压保护装置，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，***设备和管路的安全运行。
主要零部件材料
| NO. | 零件名称 | A48Y-C A44Y-C 材料 | A44Y-P材料 | A44Y-R材料 |
| 1 | 阀体 | WCB | ZG1Cr18Ni9Ti | CF8M |
| 2 | 阀座 | 2Cr13 | 1Cr18Ni9Ti | 316 |
| 3 | 调节圈 | ZG2Cr13 | ZG1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti |
| 4 | 反冲盘 | ZG2Cr13 | ZG1Cr18Ni9Ti | 316 |
| 5 | 阀瓣 | 2Cr13 | 1Cr18Ni9Ti | 316 |
| 6 | 导向套 | 2Cr13 | 1Cr18Ni9Ti | 0Cr18Ni12Mo2Ti |
| 7 | 阀盖 | ZG230-450 | ZG230-450 | ZG230-450 |
| 8 | 弹簧 | 50CrVA | 50CrVA包覆氟塑料 | 50CrVA包覆氟塑料 |
| 9 | 阀杆 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 10 | 扳手 | ZG200-400 | ZG200-400 | ZG200-400 |
| 11 | 调整螺杆 | 45 | 2Cr13 | 2Cr13 |
| 12 | 保护罩 | ZG200-400 | ZG200-400 | 316 |
| 密封面材料 | 堆焊Co基硬质合金 |
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外形尺寸和连接尺寸
| 型号 | 公称通径 | do | D | K | g | g1 | b | f | f1 | Z-?d | DN&＃39; | D1 | K1 | g3 | g2 | b1 | f&＃39; | f1&＃39; | Z1-?d1 | L | L1 | ≈H |
| A48Y-16C | 20 | 15 | 105 | 75 |
| 55 | 16 | 2 |
| 4-14 | 25 | 115 | 85 |
| 65 | 16 | 2 |
| 4-14 | 110 | 95 | 411 |
| 25 | 16 | 115 | 85 |
| 65 | 16 | 2 |
| 4-14 | 32 | 140 | 100 |
| 78 | 18 | 2 |
| 4-18 | 110 | 95 | 411 |
|
| 32 | 20 | 140 | 100 |
| 78 | 18 | 2 |
| 4-18 | 40 | 150 | 110 |
| 85 | 18 | 3 |
| 4-18 | 115 | 100 | 411 |
|
| 40 | 25 | 150 | 110 |
| 85 | 18 | 3 |
| 4-18 | 50 | 165 | 125 |
| 100 | 20 | 3 |
| 4-18 | 120 | 110 | 472 |
|
| 50 | 32 | 165 | 125 |
| 100 | 20 | 3 |
| 4-18 | 65 | 185 | 145 |
| 120 | 20 | 3 |
| 4-18 | 135 | 120 | 532 |
|
| 65 | 40 | 185 | 145 |
| 120 | 20 | 3 |
| 4-18 | 80 | 200 | 160 |
| 135 | 20 | 3 |
| 8-18 | 160 | 140 | 556 |
|
| 80 | 50 | 200 | 160 |
| 135 | 20 | 3 |
| 8-18 | 100 | 220 | 180 |
| 155 | 22 | 3 |
| 8-18 | 170 | 135 | 561 |
|
| 100 | 65 | 220 | 180 |
| 155 | 20 | 3 |
| 8-18 | 125 | 250 | 210 |
| 185 | 22 | 3 |
| 8-18 | 195 | 175 | 667 |
|
| 125 | 80 | 250 | 210 |
| 185 | 22 | 3 |
| 8-18 | 150 | 285 | 240 |
| 210 | 24 | 3 |
| 8-23 | 210 | 190 | 857 |
|
| 150 | 100 | 285 | 240 |
| 210 | 24 | 3 |
| 8-23 | 175 | 310 | 270 |
| 240 | 26 | 3 |
| 8-23 | 255 | 230 | 915 |
|
| 200 | 125 | 340 | 295 |
| 265 | 26 | 3 |
| 12-23 | 250 | 405 | 355 |
| 320 | 30 | 3 |
| 12-26 | 300 | 260 | 1073 |
|
| 250 | 150 | 405 | 355 |
| 320 | 30 | 3 |
| 12-26 | 300 | 460 | 410 |
| 375 | 30 | 4 |
| 12-26 | 350 | 320 | 1307 |
|
| 300 | 220 | 460 | 410 |
| 375 | 30 | 4 |
| 12-26 | 400 | 580 | 525 |
| 485 | 36 | 4 |
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