一、彈簧微啟封閉式安全閥 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。
二、彈簧微啟封閉式安全閥 結(jié)構(gòu)簡(jiǎn)述 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。閥瓣密封面采用良好的激光淬火技術(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。 三、彈簧微啟封閉式安全閥 安裝說明 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。 2、安全閥的出口必須裝設(shè)適當(dāng)?shù)呐蛎浌?jié),以防止排放管的熱膨脹給安全閥帶來不應(yīng)有的熱應(yīng)力。排放管內(nèi)徑應(yīng)比閥門出口直徑大,長(zhǎng)度盡可能短,避免拐彎。排放管及膨脹節(jié)重量不應(yīng)作用在安全閥上,應(yīng)固定在建筑上。排放管的中心線與閥體的中心線間距離盡可能的短。對(duì)每臺(tái)安全閥都應(yīng)單獨(dú)裝設(shè)排放管。 3、消聲器的出口處要有足夠的面積,防止產(chǎn)生背壓影響閥門的排放能力。 四、彈簧微啟封閉式安全閥 主要零部件材料 NO | 零件名稱 | A41H-C/KA41Y-C材料 | A41Y-P/KA41Y-P材料 | A41Y-R/KA41Y-R材料 | 1 | 閥體 | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | 2 | 閥座 | ZG2Cr13/1Cr18Ni9Ti | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | 3 | 調(diào)節(jié)圈 | ZG2Cr13/1Cr18Ni9Ti | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | 4 | 閥瓣 | 2Cr13/1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti | 5 | 導(dǎo)向套 | ZG2Cr13/1Cr18Ni9Ti | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti | 6 | 閥蓋 | ZG230-450 | ZG230-450 | ZG230-450 | 7 | 彈簧 | 50CrVA | 50CrVA包覆氟塑料 | 50CrVA包覆氟塑料 | 8 | 閥桿 | 2Cr13 | 2Cr13 | 1Cr18Ni12Mo2Ti | 9 | 調(diào)整螺桿 | 45 | 2Cr13 | 2Cr13 | 10 | 保護(hù)罩 | ZG200-400 | ZG200-400 | ZG200-400 |
| 密封面材料 | 堆焊D507 | 堆焊Co基硬質(zhì)合金 |
五、彈簧微啟封閉式安全閥 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</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 |
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