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A41H弹簧微启封闭式安全阀
安全阀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。当容器内的压力降到允许值时,阀又自动关闭,使容器内压力始终低于允许压力的上限,自动防止因超压而可能出现的事故,所以安全阀又被称为压力容器的zui终保护装置。
安全阀常见故障及原因
【安全阀漏气】(1)阀芯与阀座接触面不严密;(2)阀芯与阀座接触面有脏物;(3)阀杆偏斜。
【安全阀到规定压力时不开启】(1)阀芯与阀座粘住,可做手动排气试验排除;(2)弹簧式安全阀的弹簧调整压力过大,应重新调整;(3)杠杆式安全阀的重锤向后移动,应将重锤移到原来定压的位置上,用限动螺丝紧固。
【安全阀不规定压力时开启】(1)弹簧式安全阀的弹簧调整压力不够、弹簧失效或弹力不足,应重调或重换安全阀;(2)杠杆式安全阀重锤向前移动,应将重锤移到原来定压的位置上,用限动螺丝紧固。
A41H
A41H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。
弹簧微启封闭式安全阀主要零部件材料
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 |
弹簧微启封闭式安全阀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'' | D1 | K1 | g2 | g'' | b1 | f'' | f1'' | Z1-?d1 | L | L1 | ≈H |
A41H-16C A41Y-16P A41Y-16R KA41Y-16C KA41Y-16P | 20 | 15 | 105 | 75 | | 55 | 16 | 2 | | 4-14 | 20 | 105 | 75 | 55 | | 16 | 2 | | 4-14 | 100 | 85 | 276 |
25 | 20 | 115 | 85 | | 65 | 16 | 2 | | 4-14 | 25 | 115 | 85 | 65 | | 16 | 2 | | 4-14 | 100 | 85 | 276 | |
32 | 25 | 140 | 100 | | 78 | 18 | 2 | | 4-18 | 32 | 140 | 100 | 78 | | 18 | 2 | | 4-18 | 115 | 100 | 285 | |
40 | 32 | 150 | 110 | | 85 | 18 | 3 | | 4-18 | 40 | 150 | 110 | 85 | | 18 | 3 | | 4-18 | 120 | 110 | 292 | |
50 | 40 | 165 | 125 | | 100 | 20 | 3 | | 4-18 | 50 | 165 | 125 | 100 | | 20 | 3 | | 4-18 | 135 | 120 | 370 | |
65 | 50 | 185 | 145 | | 120 | 20 | 3 | | 4-18 | 65 | 185 | 145 | 120 | | 20 | 3 | | 4-18 | 140 | 130 | 375 | |
80 | 65 | 200 | 160 | | 135 | 20 | 3 | | 8-18 | 80 | 200 | 160 | 135 | | 20 | 3 | | 8-18 | 160 | 135 | 373 | |
100 | 80 | 220 | 180 | | 155 | 22 | 3 | | 8-18 | 100 | 220 | 180 | 155 | | 22 | 3 | | 8-18 | 170 | 160 | 513 | |
125 | 100 | 250 | 210 | | 185 | 22 | 3 | | 8-18 | 125 | 250 | 210 | 185 | | 22 | 3 | | 8-18 | 190 | 190 | 560 | |
150 | 125 | 285 | 240 | | 210 | 24 | 3 | | 8-23 | 150 | 285 | 240 | 210 | | 24 | 3 | | 8-23 | 205 | 195 | 570 | |
200 | 150 | 340 | 295 | | 265 | 26 | 3 | | 12-23 | 200 | 340 | 295 | 265 | | 26 | 3 | | 12-23 | 240 | 230 | 717 | |
250 | 200 | 405 | 355 | | 320 | 30 | 3 | | 12-26 | 250 | 405 | 355 | 320 | | 30 | 3 | | 12-26 | 350 | 320 | 940 | |
300 | 250 | 460 | 410 | | 375 | 30 | 4 | | 12-26 | 300 | 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 | 20 | 105 | 75 | 55 | | 16 | 2 | | 4-14 | 100 | 85 | 276 |
25 | 20 | 115 | 85 | | 65 | 16 | 2 | | 4-14 | 25 | 115 | 85 | 65 | | 16 | 2 | | 4-14 | 100 | 85 | 276 | |
32 | 25 | 140 | 100 | | 78 | 18 | 2 | | 4-18 | 32 | 140 | 100 | 78 | | 18 | 2 | | 4-18 | 115 | 100 | 285 | |
40 | 32 | 150 | 110 | | 85 | 18 | 3 | | 4-18 | 40 | 150 | 110 | 85 | | 18 | 3 | | 4-18 | 120 | 110 | 292 | |
50 | 40 | 165 | 125 | | 100 | 20 | 3 | | 4-18 | 50 | 165 | 125 | 100 | | 20 | 3 | | 4-18 | 135 | 120 | 370 | |
65 | 50 | 185 | 145 | | 120 | 22 | 3 | | 8-18 | 65 | 185 | 145 | 120 | | 20 | 3 | | 4-18 | 140 | 130 | 375 | |
80 | 65 | 200 | 160 | | 135 | 24 | 3 | | 8-18 | 80 | 200 | 160 | 135 | | 20 | 3 | | 8-18 | 160 | 135 | 373 | |
100 | 80 | 230 | 190 | | 160 | 24 | 3 | | 8-23 | 100 | 220 | 180 | 155 | | 20 | 3 | | 8-18 | 170 | 160 | 513 | |
125 | 100 | 270 | 220 | | 188 | 28 | 3 | | 8-26 | 125 | 250 | 210 | 185 | | 22 | 3 | | 8-18 | 190 | 190 | 560 | |
150 | 125 | 300 | 250 | | 218 | 30 | 3 | | 8-26 | 150 | 285 | 240 | 210 | | 24 | 3 | | 8-23 | 205 | 195 | 570 | |
200 | 150 | 360 | 310 | | 278 | 34 | 3 | | 12-26 | 200 | 340 | 295 | 265 | | 26 | 3 | | 12-23 | 240 | 230 | 717 | |
250 | 200 | 425 | 370 | | 332 | 36 | 3 | | 12-30 | 250 | 405 | 355 | 320 | | 30 | 3 | | 12-26 | 350 | 320 | 940 | |
300 | 250 | 485 | 430 | | 390 | 40 | 4 | | 16-30 | 300 | 460 | 410 | 375 | | 30 | 4 | | 12-26 | 350 | 320 | 980 | |
A41H-40 A41Y-40P A41Y-40R KA41Y-40 KA41Y-40P | 20 | 15 | 105 | 75 | 51 | 55 | 16 | 2 | 4 | 4-14 | 20 | 105 | 75 | 55 | | 16 | 2 | | 4-14 | 100 | 85 | 276 |
25 | 20 | 115 | 85 | 58 | 65 | 16 | 2 | 4 | 4-14 | 25 | 115 | 85 | 65 | | 16 | 2 | | 4-14 | 100 | 85 | 276 | |
32 | 25 | 140 | 100 | 66 | 78 | 18 | 2 | 4 | 4-18 | 32 | 140 | 100 | 78 | | 18 | 2 | | 4-18 | 115 | 100 | 285 | |
40 | 32 | 150 | 110 | 76 | 85 | 18 | 3 | 4 | 4-18 | 40 | 150 | 110 | 85 | | 18 | 3 | | 4-18 | 120 | 110 | 292 | |
50 | 40 | 165 | 125 | 88 | 100 | 20 | 3 | 4 | 4-18 | 50 | 165 | 125 | 100 | | 20 | 3 | | 4-18 | 135 | 120 | 370 | |
65 | 50 | 185 | 145 | 110 | 120 | 22 | 3 | 4 | 8-18 | 65 | 185 | 145 | 120 | | 20 | 3 | | 4-18 | 140 | 130 | 375 | |
80 | 65 | 200 | 160 | 121 | 135 | 22 | 3 | 4 | 8-18 | 80 | 200 | 160 | 135 | | 20 | 3 | | 8-18 | 160 | 135 | 373 | |
100 | 80 | 235 | 190 | 150 | 160 | 24 | 3 | 4.5 | 8-23 | 100 | 220 | 180 | 155 | | 22 | 3 | | 8-18 | 170 | 160 | 513 | |
125 | 100 | 270 | 220 | 176 | 188 | 28 | 3 | 4.5 | 8-26 | 125 | 250 | 210 | 185 | | 22 | 3 | | 8-18 | 190 | 190 | 560 | |
150 | 125 | 300 | 250 | 204 | 218 | 30 | 3 | 4.5 | 8-26 | 150 | 285 | 240 | 210 | | 24 | 3 | | 8-23 | 205 | 195 | 570 | |
200 | 150 | 375 | 320 | 260 | 282 | 38 | 3 | 4.5 | 12-30 | 200 | 340 | 295 | 265 | | 26 | 3 | | 12-23 | 240 | 230 | 717 | |
250 | 200 | 450 | 385 | 313 | 345 | 42 | 3 | 4.5 | 12-34 | 250 | 405 | 355 | 320 | | 30 | 3 | | 12-26 | 350 | 320 | 940 | |
300 | 250 | 515 | 450 | 364 | 408 | 46 | 4 | 4.5 | 16-34 | 300 | 460 | 410 | 375 | | 30 | 4 | | 12-26 | 350 | 320 | 980 | |
A41H-64 A41Y-64 A41Y-64P A41Y-64R | 20 | 15 | 130 | 90 | 51 | 68 | 20 | 2 | 4 | 4-18 | 20 | 105 | 75 | 55 | 51 | 16 | 2 | 4 | 4-14 | 100 | 95 | 268 |
25 | 20 | 140 | 100 | 58 | 78 | 22 | 2 | 4 | 4-18 | 25 | 115 | 85 | 65 | 58 | 16 | 2 | 4 | 4-14 | 100 | 95 | 268 | |
32 | 25 | 155 | 110 | 66 | 82 | 24 | 2 | 4 | 4-23 | 32 | 140 | 100 | 78 | 66 | 18 | 2 | 4 | 4-18 | 115 | 105 | 279 | |
40 | 32 | 170 | 125 | 76 | 95 | 24 | 3 | 4 | 4-23 | 40 | 150 | 110 | 85 | 76 | 18 | 3 | 4 | 4-18 | 135 | 115 | 330 | |
50 | 40 | 180 | 135 | 88 | 105 | 26 | 3 | 4 | 4-23 | 50 | 165 | 125 | 100 | 88 | 20 | 3 | 4 | 4-18 | 160 | 125 | 360 | |
65 | 50 | 205 | 160 | 110 | 130 | 28 | 3 | 4 | 8-23 | 65 | 185 | 145 | 120 | 110 | 22 | 3 | 4 | 8-18 | 175 | 160 | 503 | |
80 | 65 | 215 | 170 | 121 | 140 | 30 | 3 | 4 | 8-23 | 80 | 200 | 160 | 135 | 121 | 22 | 3 | 4 | 8-18 | 175 | 160 | 498 | |
100 | 80 | 250 | 200 | 150 | 168 | 32 | 3 | 4.5 | 8-26 | 100 | 235 | 190 | 160 | 150 | 24 | 3 | 4.5 | 8-23 | 190 | 180 | 530 | |
150 | 100 | 345 | 280 | 204 | 240 | 38 | 3 | 4.5 | 8-34 | 150 | 300 | 250 | 218 | 204 | 30 | 3 | 4.5 | 8-26 | 280 | 260 | 657 | |
A41H-100 A41Y-100 A41Y-100P A41Y-100R | 20 | 15 | 130 | 90 | 51 | 68 | 22 | 2 | 4 | 4-18 | 20 | 105 | 75 | 55 | 51 | 16 | 2 | 4 | 4-14 | 100 | 95 | 268 |
25 | 20 | 140 | 100 | 58 | 78 | 24 | 2 | 4 | 4-18 | 25 | 115 | 85 | 65 | 58 | 16 | 2 | 4 | 4-14 | 100 | 95 | 268 | |
32 | 25 | 155 | 110 | 66 | 82 | 24 | 2 | 4 | 4-23 | 32 | 140 | 100 | 78 | 66 | 18 | 2 | 4 | 4-18 | 115 | 105 | 279 | |
40 | 32 | 170 | 125 | 76 | 95 | 26 | 3 | 4 | 4-23 | 40 | 150 | 110 | 85 | 76 | 18 | 3 | 4 | 4-18 | 135 | 115 | 330 | |
50 | 40 | 195 | 145 | 88 | 112 | 28 | 3 | 4 | 4-26 | 50 | 165 | 125 | 100 | 88 | 20 | 3 | 4 | 4-18 | 160 | 125 | 360 | |
65 | 50 | 220 | 170 | 110 | 138 | 32 | 3 | 4 | 8-26 | 65 | 185 | 145 | 120 | 110 | 22 | 3 | 4 | 8-18 | 175 | 160 | 503 | |
80 | 65 | 230 | 180 | 121 | 148 | 34 | 3 | 4 | 8-26 | 80 | 200 | 160 | 135 | 121 | 22 | 3 | 4 | 8-18 | 175 | 160 | 498 | |
100 | 80 | 265 | 210 | 150 | 172 | 38 | 3 | 4.5 | 8-30 | 100 | 235 | 190 | 160 | 150 | 24 | 3 | 4.5 | 8-23 | 190 | 180 | 530 | |
150 | 100 | 355 | 290 | 204 | 250 | 46 | 3 | 4.5 | 12-34 | 150 | 300 | 250 | 218 | 204 | 30 | 3 | 4.5 | 8-26 | 280 | 260 | 657 |