安全閥-微啟封閉式安全閥
【概述 】
A41H型適用于工作溫度≤300℃的石油氣、空氣、水等介質(zhì)的設(shè)備或管路上。A41Y-P/R型適用于工作溫度≤200℃有腐蝕性介質(zhì)的設(shè)備或管路上,作為超壓保護(hù)裝置。當(dāng)設(shè)備和管路內(nèi)壓力超過(guò)允許值時(shí),閥門自動(dòng)開啟,繼而全量排放;當(dāng)壓力降低到規(guī)定值時(shí),閥門自動(dòng)關(guān)閉,保證設(shè)備和管路安全運(yùn)行。連接法蘭標(biāo)準(zhǔn)按JB/T……94/系列。
【結(jié)構(gòu)特點(diǎn)】
1、彈簧微啟式安全閥具有結(jié)構(gòu)簡(jiǎn)單、密封性能好、開啟壓力準(zhǔn)確、排放能力大、回座壓差小、調(diào)整方便等特點(diǎn)。
2、噴嘴型閥座:閥座為位伐爾噴嘴型閥座,蒸汽流經(jīng)閥座出口處時(shí)達(dá)到音速,排放系數(shù)大,閥座密封面堆焊鈷鉻鎢硬質(zhì)合金,耐磨抗沖蝕,壽命長(zhǎng)。
3、熱彈性閥瓣:閥瓣設(shè)計(jì)為熱彈性結(jié)構(gòu),利用其在介質(zhì)壓力下微小的變形,提高密封能力,克服安全閥在介質(zhì)壓力下臨近整定壓力時(shí)的前泄現(xiàn)象。閥瓣密封面采用*的激光淬火技術(shù),提高了硬度、耐磨性、抗沖抗性。
4、調(diào)節(jié)螺母:通過(guò)調(diào)整調(diào)節(jié)螺母,調(diào)整彈簧壓縮量,使閥門能夠很方便、很迅速地獲得準(zhǔn)確的整定壓力。
5、背壓調(diào)整套:調(diào)整閥瓣背壓的輔助機(jī)構(gòu),通過(guò)背壓調(diào)整套調(diào)整,可獲得合適的回座壓差。上調(diào)時(shí),使閥門背壓降低。下調(diào)時(shí),使閥門背壓提高。
【安裝說(shuō)明】 1、安全閥必須垂直安裝,并直接安裝在容器或管道的接頭上。接頭內(nèi)徑應(yīng)不小于安全閥的進(jìn)口通徑。 |
【主要零部件材料 】
【外形尺寸和連接尺寸 】
型號(hào) | 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 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 |