A41H彈簧微啟封閉式安全閥
安全閥是一種由進口靜壓開啟的自動泄壓防護裝置,它是壓力容器zui為重要的安全附件之一,它的功能是:當容器內壓力超過某一定值時,依靠介質自身的壓力自動開啟閥門,迅速排出一定數量的介質。當容器內的壓力降到允許值時,閥又自動關閉,使容器內壓力始終低于允許壓力的上限,自動防止因超壓而可能出現的事故,所以安全閥又被稱為壓力容器的zui終保護裝置。
安全閥常見故障及原因
【安全閥漏氣】(1)閥芯與閥座接觸面不嚴密;(2)閥芯與閥座接觸面有臟物;(3)閥桿偏斜。
【安全閥到規定壓力時不開啟】(1)閥芯與閥座粘住,可做手動排氣試驗排除;(2)彈簧式安全閥的彈簧調整壓力過大,應重新調整;(3)杠桿式安全閥的重錘向后移動,應將重錘移到原來定壓的位置上,用限動螺絲緊固。
【安全閥不規定壓力時開啟】(1)彈簧式安全閥的彈簧調整壓力不夠、彈簧失效或彈力不足,應重調或重換安全閥;(2)杠桿式安全閥重錘向前移動,應將重錘移到原來定壓的位置上,用限動螺絲緊固。
A41H彈簧微啟封閉式安全閥概述
A41H彈簧微啟封閉式安全閥適用于工作溫度≤300℃的石油氣、空氣、水等介質的設備或管路上。A41Y-P/R型適用于工作溫度≤200℃有腐蝕性介質的設備或管路上,作為超壓保護裝置。連接法蘭標準按JB/T……94/系列1。
彈簧微啟封閉式安全閥主要零部件材質
NO | 零件名稱 | A41H-16材料 | A41H-16P材料 | A41H-16R材料 |
1 | 法蘭 | 35/35CrMoA | 2Cr13 | 1Cr18Ni9Ti |
2 | 閥座 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
3 | 閥體 | 35/40 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
4 | 閥瓣 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
5 | 導向套 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
6 | 彈簧 | 50CrVA | 50CrVA包覆氟塑料 | 50CrVA包覆氟塑料 |
7 | 閥桿 | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
8 | 閥蓋 | ZG230-450 | 1Cr18Ni9Ti | 1Cr18Ni9Ti |
9 | 調整螺桿 | 45 | 2Cr13 | 2Cr13 |
10 | 閥帽 | ZG200-400 | 1Cr18Ni9Ti | 1Cr18Ni9Ti |
| 閥座、閥瓣密封面 | 堆焊Co基硬質合金 |
彈簧微啟封閉式安全閥外形尺寸和連接尺寸
型號 | 公稱通徑 | 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 | 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 |