A47H-帶扳手(shǒu)彈簧微啟式安全閥(fá)
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帶扳手彈簧微啟式安全閥說明：A47H帶扳手彈簧微啟式安全閥适用于工作溫度≤350℃的(de)蒸(zhēng)汽、空氣等介質的設備或管路上。作為超壓保護裝(zhuāng)置。連接法蘭标準按JB/T-94的系列 帶扳手彈簧微啟式(shì)安(ān)全閥結構簡述(shù)
1、彈簧微啟式安(ān)全閥具有結構簡單、密封性能好、開啟壓力(lì)準确、排放能力大、回座壓差小、調整方(fāng)便等特點。
2、噴嘴型閥座：閥座為位伐爾噴(pēn)嘴型閥座，蒸汽流經閥座出口處時達到音速，排放系數大，閥座密封面堆焊钴鉻鎢硬質合(hé)金，耐磨抗沖蝕，壽命長。
3、熱(rè)彈性閥瓣：閥瓣設(shè)計為熱彈性結構(gòu)，利用其在(zài)介質壓力下微小的(de)變形，提高密封能力，克服(fú)安全閥在介質(zhì)壓力下臨近整定壓力時的前洩現象。閥(fá)瓣密封面采用先進的激光淬火技術，提高了硬度、耐磨性、抗沖抗性。
4、調節螺母：通過調整調節螺母，調(diào)整彈簧壓縮量，使閥門能夠很方便、很迅(xùn)速地獲得準确的整(zhěng)定壓力。
5、背壓調整套：調整閥(fá)瓣(bàn)背壓的輔助機構，通過(guò)背壓調整套調整，可獲得合(hé)适的回座壓差。上調時，使閥門(mén)背壓降低。下調時，使閥門背壓提(tí)高。 帶扳手彈簧微啟式安全閥安裝說(shuō)明
1、安全閥必須垂直安裝，并(bìng)最(zuì)好直接安(ān)裝在容器或管道的(de)接頭上。接頭内徑應不小于安全閥(fá)的進口通徑。
2、安全閥的出口必須裝設适當的膨(péng)脹節，以防止排放管(guǎn)的熱膨脹給(gěi)安全閥帶來不應有的熱應力。排放管内徑應比閥門出口直徑大(dà)，長度盡可能短，避免(miǎn)拐彎。排放管及膨脹節重量(liàng)不應作用在安全閥上，應固定在(zài)建築上。排放管的中心線與閥(fá)體的中心線間距離盡可能的短。對每台(tái)安全閥都應單獨(dú)裝設排放管。
3、消聲器的出口處要有足夠的面積，防止(zhǐ)産生背壓影響閥(fá)門的排放能力。
帶扳手(shǒu)彈簧微啟式(shì)安全閥主要零件材料
| NO | 零件名稱 | 材料 |
| 1 | 閥體 | WCB |
| 2 | 閥座 | ZG2Cr13 |
| 3 | 調節圈 | ZG2Cr13 |
| 4 | 閥瓣 | 2Cr13 |
| 5 | 導向套(tào) | 2Cr13 |
| 6 | 閥蓋 | ZG230-450 |
| 7 | 彈簧 | 50CrVA |
| 8 | 閥(fá)杆 | 2Cr13 |
| 9 | 扳手 | ZG200-400 |
| 10 | 調整螺杆 | 45 |
| 11 | 保護罩 | ZG200-400 |
| 密(mì)封面材料(liào) | "H"堆焊D507,"Y"堆焊Co基硬質合金 |
| 型号 | 公稱(chēng)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 |
| A47H-16C | 20 | 15 | 105 | 75 | / | 55 | 16 | 2 | / | 4-14 | 20 | 105 | 75 | 55 | / | 16 | 2 | / | 4-14 | 100 | 85 | 270 |
| 25 | 20 | 115 | 85 | / | 65 | 16 | 2 | / | 4-14 | 25 | 115 | 85 | 65 | / | 16 | 2 | / | 4-14 | 100 | 85 | 270 | |
| 32 | 25 | 140 | 100 | / | 78 | 18 | 2 | / | 4-18 | 32 | 140 | 100 | 78 | / | 18 | 2 | / | 4-18 | 115 | 100 | 312 | |
| 40 | 32 | 150 | 110 | / | 85 | 18 | 3 | / | 4-18 | 40 | 150 | 110 | 85 | / | 18 | 3 | / | 4-18 | 120 | 110 | 320 | |
| 50 | 40 | 165 | 125 | / | 100 | 20 | 3 | / | 4-18 | 50 | 165 | 125 | 100 | / | 20 | 3 | / | 4-18 | 135 | 120 | 390 | |
| 65 | 50 | 185 | 145 | / | 120 | 20 | 3 | / | 4-18 | 65 | 185 | 145 | 120 | / | 20 | 3 | / | 4-18 | 140 | 130 | 395 | |
| 80 | 65 | 200 | 160 | / | 135 | 20 | 3 | / | 8-18 | 80 | 200 | 160 | 135 | / | 20 | 3 | / | 8-18 | 160 | 135 | 400 | |
| 100 | 80 | 220 | 180 | / | 155 | 22 | 3 | / | 8-18 | 100 | 220 | 180 | 155 | / | 22 | 3 | / | 8-18 | 170 | 160 | 600 | |
| 125 | 100 | 250 | 210 | / | 185 | 22 | 3 | / | 8-18 | 125 | 250 | 210 | 185 | / | 22 | 3 | / | 8-18 | 190 | 190 | 620 | |
| 150 | 125 | 285 | 240 | / | 210 | 24 | 3 | / | 8-23 | 150 | 285 | 240 | 210 | / | 24 | 3 | / | 8-23 | 205 | 195 | 625 | |
| 200 | 150 | 340 | 295 | / | 265 | 26 | 3 | / | 12-23 | 200 | 340 | 295 | 265 | / | 26 | 3 | / | 12-23 | 240 | 230 | 798 | |
| 250 | 200 | 405 | 355 | / | 320 | 30 | 3 | / | 12-26 | 250 | 405 | 355 | 320 | / | 30 | 3 | / | 12-26 | 350 | 320 | 981 | |
| 300 | 250 | 460 | 410 | / | 375 | 30 | 4 | / | 12-26 | 300 | 460 | 410 | 375 | / | 30 | 4 | / | 12-26 | 350 | 320 | 1005 | |
| A47H-25 | 20 | 15 | 105 | 75 | / | 55 | 16 | 2 | / | 4-14 | 20 | 105 | 75 | 55 | / | 16 | 2 | / | 4-14 | 100 | 85 | 270 |
| 25 | 20 | 115 | 85 | / | 65 | 16 | 2 | / | 4-14 | 25 | 115 | 85 | 65 | / | 16 | 2 | / | 4-14 | 100 | 85 | 270 | |
| 32 | 25 | 140 | 100 | / | 78 | 18 | 2 | / | 4-18 | 32 | 140 | 100 | 78 | / | 18 | 2 | / | 4-18 | 115 | 100 | 312 | |
| 40 | 32 | 150 | 110 | / | 85 | 18 | 3 | / | 4-18 | 40 | 150 | 110 | 85 | / | 18 | 3 | / | 4-18 | 120 | 110 | 320 | |
| 50 | 40 | 165 | 125 | / | 100 | 20 | 3 | / | 4-18 | 50 | 165 | 125 | 100 | / | 20 | 3 | / | 4-18 | 135 | 120 | 390 | |
| 65 | 50 | 185 | 145 | / | 120 | 22 | 3 | / | 8-18 | 65 | 185 | 145 | 120 | / | 20 | 3 | / | 4-18 | 140 | 130 | 395 | |
| 80 | 65 | 200 | 160 | / | 135 | 24 | 3 | / | 8-18 | 80 | 200 | 160 | 135 | / | 20 | 3 | / | 8-18 | 160 | 135 | 400 | |
| 100 | 80 | 230 | 190 | / | 160 | 24 | 3 | / | 8-23 | 100 | 220 | 180 | 155 | / | 20 | 3 | / | 8-18 | 170 | 160 | 600 | |
| 125 | 100 | 270 | 220 | / | 188 | 28 | 3 | / | 8-26 | 125 | 250 | 210 | 185 | / | 22 | 3 | / | 8-18 | 190 | 190 | 620 | |
| 150 | 125 | 300 | 250 | / | 218 | 30 | 3 | / | 8-26 | 150 | 285 | 240 | 210 | / | 24 | 3 | / | 8-23 | 205 | 195 | 625 | |
| 200 | 150 | 360 | 310 | / | 278 | 34 | 3 | / | 12-26 | 200 | 340 | 295 | 265 | / | 26 | 3 | / | 12-23 | 240 | 230 | 798 | |
| 250 | 200 | 425 | 370 | / | 332 | 36 | 3 | / | 12-30 | 250 | 405 | 355 | 320 | / | 30 | 3 | / | 12-26 | 350 | 320 | 981 | |
| 300 | 250 | 485 | 430 | / | 390 | 40 | 4 | / | 16-30 | 300 | 460 | 410 | 375 | / | 30 | 4 | / | 12-26 | 350 | 320 | 1005 | |
| A47H-40 | 20 | 15 | 105 | 75 | 51 | 55 | 16 | 2 | 4 | 4-14 | 20 | 105 | 75 | 55 | / | 16 | 2 | / | 4-14 | 100 | 85 | 270 |
| 25 | 20 | 115 | 85 | 58 | 65 | 16 | 2 | 4 | 4-14 | 25 | 115 | 85 | 65 | / | 16 | 2 | / | 4-14 | 100 | 85 | 270 | |
| 32 | 25 | 140 | 100 | 66 | 78 | 18 | 2 | 4 | 4-18 | 32 | 140 | 100 | 78 | / | 18 | 2 | / | 4-18 | 115 | 100 | 312 | |
| 40 | 32 | 150 | 110 | 76 | 85 | 18 | 3 | 4 | 4-18 | 40 | 150 | 110 | 85 | / | 18 | 3 | / | 4-18 | 120 | 110 | 320 | |
| 50 | 40 | 165 | 125 | 88 | 100 | 20 | 3 | 4 | 4-18 | 50 | 165 | 125 | 100 | / | 20 | 3 | / | 4-18 | 135 | 120 | 390 | |
| 65 | 50 | 185 | 145 | 110 | 120 | 22 | 3 | 4 | 8-18 | 65 | 185 | 145 | 120 | / | 20 | 3 | / | 4-18 | 140 | 130 | 395 | |
| 80 | 65 | 200 | 160 | 121 | 135 | 22 | 3 | 4 | 8-18 | 80 | 200 | 160 | 135 | / | 20 | 3 | / | 8-18 | 160 | 135 | 400 | |
| 100 | 80 | 235 | 190 | 150 | 160 | 24 | 3 | 4.5 | 8-23 | 100 | 220 | 180 | 155 | / | 22 | 3 | / | 8-18 | 170 | 160 | 600 | |
| 125 | 100 | 270 | 220 | 176 | 188 | 28 | 3 | 4.5 | 8-26 | 125 | 250 | 210 | 185 | / | 22 | 3 | / | 8-18 | 190 | 190 | 620 | |
| 150 | 125 | 300 | 250 | 204 | 218 | 30 | 3 | 4.5 | 8-26 | 150 | 285 | 240 | 210 | / | 24 | 3 | / | 8-23 | 205 | 195 | 625 | |
| 200 | 150 | 375 | 320 | 260 | 282 | 38 | 3 | 4.5 | 12-30 | 200 | 340 | 295 | 265 | / | 26 | 3 | / | 12-23 | 240 | 230 | 798 | |
| 250 | 200 | 450 | 385 | 313 | 345 | 42 | 3 | 4.5 | 12-34 | 250 | 405 | 355 | 320 | / | 30 | 3 | / | 12-26 | 350 | 320 | 981 | |
| 300 | 250 | 515 | 450 | 364 | 408 | 46 | 4 | 4.5 | 16-34 | 300 | 460 | 410 | 375 | / | 30 | 4 | / | 12-26 | 350 | 320 | 1005 | |
| A47H-64 A47Y-64 | 20 | 15 | 130 | 90 | 51 | 68 | 20 | 2 | 4 | 4-18 | 20 | 105 | 75 | 55 | 51 | 16 | 2 | 4 | 4-14 | 100 | 95 | 301 |
| 25 | 20 | 140 | 100 | 58 | 78 | 22 | 2 | 4 | 4-18 | 25 | 115 | 85 | 65 | 58 | 16 | 2 | 4 | 4-14 | 100 | 95 | 301 | |
| 32 | 25 | 155 | 110 | 66 | 82 | 24 | 2 | 4 | 4-23 | 32 | 140 | 100 | 78 | 66 | 18 | 2 | 4 | 4-18 | 115 | 105 | 312 | |
| 40 | 32 | 170 | 125 | 76 | 95 | 24 | 3 | 4 | 4-23 | 40 | 150 | 110 | 85 | 76 | 18 | 3 | 4 | 4-18 | 135 | 115 | 366 | |
| 50 | 40 | 180 | 135 | 88 | 105 | 26 | 3 | 4 | 4-23 | 50 | 165 | 125 | 100 | 88 | 20 | 3 | 4 | 4-18 | 160 | 125 | 396 | |
| 65 | 50 | 205 | 160 | 110 | 130 | 28 | 3 | 4 | 8-23 | 65 | 185 | 145 | 120 | 110 | 22 | 3 | 4 | 8-18 | 175 | 160 | 570 | |
| 80 | 65 | 215 | 170 | 121 | 140 | 30 | 3 | 4 | 8-23 | 80 | 200 | 160 | 135 | 121 | 22 | 3 | 4 | 8-18 | 175 | 160 | 565 | |
| 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 | 597 | |
| 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 | 738 | |
| A47H-100 A47Y-100 | 20 | 15 | 130 | 90 | 51 | 68 | 22 | 2 | 4 | 4-18 | 20 | 105 | 75 | 55 | 51 | 16 | 2 | 4 | 4-14 | 100 | 95 | 301 |
| 25 | 20 | 140 | 100 | 58 | 78 | 24 | 2 | 4 | 4-18 | 25 | 115 | 85 | 65 | 58 | 16 | 2 | 4 | 4-14 | 100 | 95 | 301 | |
| 32 | 25 | 155 | 110 | 66 | 82 | 24 | 2 | 4 | 4-23 | 32 | 140 | 100 | 78 | 66 | 18 | 2 | 4 | 4-18 | 115 | 105 | 312 | |
| 40 | 32 | 170 | 125 | 76 | 95 | 26 | 3 | 4 | 4-23 | 40 | 150 | 110 | 85 | 76 | 18 | 3 | 4 | 4-18 | 135 | 115 | 366 | |
| 50 | 40 | 195 | 145 | 88 | 112 | 28 | 3 | 4 | 4-26 | 50 | 165 | 125 | 100 | 88 | 20 | 3 | 4 | 4-18 | 160 | 125 | 396 | |
| 65 | 50 | 220 | 170 | 110 | 138 | 32 | 3 | 4 | 8-26 | 65 | 185 | 145 | 120 | 110 | 22 | 3 | 4 | 8-18 | 175 | 160 | 570 | |
| 80 | 65 | 230 | 180 | 121 | 148 | 34 | 3 | 4 | 8-26 | 80 | 200 | 160 | 135 | 121 | 22 | 3 | 4 | 8-18 | 175 | 160 | 565 | |
| 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 | 597 | |
| 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 | 738 |
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