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A47H型帶扳手彈簧微啟式安全閥結(jié)構(gòu)簡述
1、彈簧微啟式安全閥具有結(jié)構(gòu)簡單、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。
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，使閥門背壓降低。下調(diào)時，使閥門背壓提高。
A47H型帶扳手彈簧微啟式安全閥安裝說明
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。對每臺安全閥都應(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。
A47H型帶扳手彈簧微啟式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(diào)節(jié)圈 | ZG2Cr13 |
| 4 | 閥瓣 | 2Cr13 |
| 5 | 導(dǎo)向套 | 2Cr13 |
| 6 | 閥蓋 | ZG230-450 |
| 7 | 彈簧 | 50CrVA |
| 8 | 閥桿 | 2Cr13 |
| 9 | 扳手 | ZG200-400 |
| 10 | 調(diào)整螺桿 | 45 |
| 11 | 保護(hù)罩 | ZG200-400 |
|
| 密封面材料 | "H"堆焊D507,"Y"堆焊Co基硬質(zhì)合金 |
A47H型帶扳手彈簧微啟式安全閥主要外形尺寸
| 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 |
| 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 | 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 | 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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