A41H、A41Y微启式安全阀适用于工作温度≤300℃的石油气、空气、水等介质的设备或管路上。A41Y-P/R型适用于工作温度≤200℃有腐蚀性介质的设备或管路上，作为超压保护装置。是一种由进口静压开启的自动泄压防护装置,它是压力容器zui为重要的安全附件之一,它的功能是：当容器内压力超过某一定值时,依靠介质自身的压力自动开启阀门,迅速排出一定数量的介质。 主要零部件材料： NO | 零件名称 | A41H-C/KA41Y-C材料 | A41Y-P/KA41Y-P材料 | A41Y-R/KA41Y-R材料 | 1 | 阀体 | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | 2 | 阀座 | ZG2Cr13/1Cr18Ni9Ti | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | 3 | 调节圈 | ZG2Cr13/1Cr18Ni9Ti | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | 4 | 阀瓣 | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 5 | 导向套 | ZG2Cr13/1Cr18Ni9Ti | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | 6 | 阀盖 | ZG230-450 | ZG230-450 | ZG230-450 | 7 | 弹簧 | 50CrVA | 50CrVA包覆氟塑料 | 50CrVA包覆氟塑料 | 8 | 阀杆 | 2Cr13 | 2Cr13 | 1Cr18Ni12Mo2Ti | 9 | 调整螺杆 | 45 | 2Cr13 | 2Cr13 | 10 | 保护罩 | ZG200-400 | ZG200-400 | ZG200-400 |
| 密封面材料 | 堆焊D507 | 堆焊Co基硬质合金 |
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 | L | L1 | H | A41H-16C
A41Y-16P
A41Y-16R
KA41Y-16C
KA41Y-16P | 20 | 15 | 105 | 75 |
| 55 | 16 | 2 |
| 4-14 | 100 | 85 | 276 | 25 | 20 | 115 | 85 |
| 65 | 16 | 2 |
| 4-14 | 100 | 85 | 276 | 32 | 25 | 140 | 100 |
| 78 | 18 | 2 |
| 4-18 | 115 | 100 | 285 | 40 | 32 | 150 | 110 |
| 85 | 18 | 3 |
| 4-18 | 120 | 110 | 292 | 50 | 40 | 165 | 125 |
| 100 | 20 | 3 |
| 4-18 | 135 | 120 | 370 | 65 | 50 | 185 | 145 |
| 120 | 20 | 3 |
| 4-18 | 140 | 130 | 375 | 80 | 65 | 200 | 160 |
| 135 | 20 | 3 |
| 8-18 | 160 | 135 | 373 | 100 | 80 | 220 | 180 |
| 155 | 22 | 3 |
| 8-18 | 170 | 160 | 513 | 125 | 100 | 250 | 210 |
| 185 | 22 | 3 |
| 8-18 | 190 | 190 | 560 | 150 | 125 | 285 | 240 |
| 210 | 24 | 3 |
| 8-23 | 205 | 195 | 570 | 200 | 150 | 340 | 295 |
| 265 | 26 | 3 |
| 12-23 | 240 | 230 | 717 | 250 | 200 | 405 | 355 |
| 320 | 30 | 3 |
| 12-26 | 350 | 320 | 940 | 300 | 250 | 460 | 410 |
| 375 | 30 | 4 |
| 12-26 | 350 | 320 | 980 | A41H-25
A41Y-25P
A41Y-25R
KA41Y-25
KA41Y-25P | 20 | 15 | 105 | 75 |
| 55 | 16 | 2 |
| 4-14 | 100 | 85 | 276 | 25 | 20 | 115 | 85 |
| 65 | 16 | 2 |
| 4-14 | 100 | 85 | 276 | 32 | 25 | 140 | 100 |
| 78 | 18 | 2 |
| 4-18 | 115 | 100 | 285 | 40 | 32 | 150 | 110 |
| 85 | 18 | 3 |
| 4-18 | 120 | 110 | 292 | 50 | 40 | 165 | 125 |
| 100 | 20 | 3 |
| 4-18 | 135 | 120 | 370 | 65 | 50 | 185 | 145 |
| 120 | 22 | 3 |
| 8-18 | 140 | 130 | 375 | 80 | 65 | 200 | 160 |
| 135 | 24 | 3 |
| 8-18 | 160 | 135 | 373 | 100 | 80 | 230 | 190 |
| 160 | 24 | 3 |
| 8-23 | 170 | 160 | 513 | 125 | 100 | 270 | 220 |
| 188 | 28 | 3 |
| 8-26 | 190 | 190 | 560 | 150 | 125 | 300 | 250 |
| 218 | 30 | 3 |
| 8-26 | 205 | 195 | 570 | 200 | 150 | 360 | 310 |
| 278 | 34 | 3 |
| 12-26 | 240 | 230 | 717 | 250 | 200 | 425 | 370 |
| 332 | 36 | 3 |
| 12-30 | 350 | 320 | 940 | 300 | 250 | 485 | 430 |
| 390 | 40 | 4 |
| 16-30 | 350 | 320 | 980 | A41H-40
A41Y-40P
A41Y-40R
KA41Y-40
KA41Y-40P | 20 | 15 | 105 | 75 | 51 | 55 | 16 | 2 | 4 | 4-14 | 100 | 85 | 276 | 25 | 20 | 115 | 85 | 58 | 65 | 16 | 2 | 4 | 4-14 | 100 | 85 | 276 | 32 | 25 | 140 | 100 | 66 | 78 | 18 | 2 | 4 | 4-18 | 115 | 100 | 285 | 40 | 32 | 150 | 110 | 76 | 85 | 18 | 3 | 4 | 4-18 | 120 | 110 | 292 | 50 | 40 | 165 | 125 | 88 | 100 | 20 | 3 | 4 | 4-18 | 135 | 120 | 370 | 65 | 50 | 185 | 145 | 110 | 120 | 22 | 3 | 4 | 8-18 | 140 | 130 | 375 | 80 | 65 | 200 | 160 | 121 | 135 | 22 | 3 | 4 | 8-18 | 160 | 135 | 373 | 100 | 80 | 235 | 190 | 150 | 160 | 24 | 3 | 4.5 | 8-23 | 170 | 160 | 513 | 125 | 100 | 270 | 220 | 176 | 188 | 28 | 3 | 4.5 | 8-26 | 190 | 190 | 560 | 150 | 125 | 300 | 250 | 204 | 218 | 30 | 3 | 4.5 | 8-26 | 205 | 195 | 570 | 200 | 150 | 375 | 320 | 260 | 282 | 38 | 3 | 4.5 | 12-30 | 240 | 230 | 717 | 250 | 200 | 450 | 385 | 313 | 345 | 42 | 3 | 4.5 | 12-34 | 350 | 320 | 940 | 300 | 250 | 515 | 450 | 364 | 408 | 46 | 4 | 4.5 | 16-34 | 350 | 320 | 980 |
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