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A47H带扳手弹簧微启式安全阀是一款配备手动测试扳手的弹簧微启式安全阀,其“H”代表密封面为合金钢材料。当系统压力超过设定值时,阀门微启泄压;压力恢复后自动关闭。手动扳手用于定期进行功能测试,强制提升阀瓣以验证其动作灵活性,防止因长期静止而粘连卡涩,确保紧急状态下能可靠动作,是对安全阀可靠性有主动验证需求场合的理想选择。广泛应用于工业锅炉、压力容器、压缩空气系统、液压站、热交换器及一般化工设备等需要定期进行安全阀功能测试以确保其可靠性的场合,作为重要的主动维护型超压保护装置

A47H带扳手弹簧微启式安全阀产品图
特点:
1.手动测试扳手
阀门顶部设有扳手,可定期进行人工抬升测试,无需系统升压即可检查阀瓣运动是否灵活,是预防性维护的关键功能。
2.弹簧微启式结构
采用直接载荷式弹簧与微启式阀瓣,开启高度小,排放量适中,启闭动作迅速平稳,适用于液体或要求小排量泄压的场合。
3.合金钢硬密封(“H”型)
阀瓣与阀座密封面采用合金钢(如13Cr)堆焊,硬度高,耐磨损、耐高温,密封性能可靠,使用寿命长。
4.结构紧凑,压力可调
整体设计紧凑。通过调节螺杆可在一定范围内调整弹簧预紧力,从而精确设定开启压力(整定压力)。
5.适用性广,可靠性高
适用于工作温度≤300℃的饱和蒸汽、空气、水、油品等多种介质。定期扳手测试大大提升了阀门长期备用的可靠性。

A47H带扳手弹簧微启式安全阀结构图
零部件名称材料
| NO. | 零件名称 Name of part | A48Y-C A44Y-C 材料 Materials |
| 1 | 阀体 Body | WCB |
| 2 | 阀座 Nozzle | 2Cr13 |
| 3 | 调节圈 Adjusting ring | ZG2Cr13 |
| 4 | 反冲盘 Disc holder | ZG2Cr13 |
| 5 | 阀瓣 Disc | 2Cr13 |
| 6 | 导向套 Guide sleeve | 2Cr13 |
| 7 | 阀盖 Bonnet | ZG230-450 |
| 8 | 弹簧 Spring | 50CrVA |
| 9 | 阀杆 Stem | 2Cr13 |
| 10 | 扳手 Lever | ZG200-400 |
| 11 | 调整螺杆 Adjusting bolt | 45 |
| 12 | 保护罩 Cap | ZG200-400 |
| 密封面材料Sealing surface of material | 堆焊Co基硬质合金 Depositing stellite |
性能规范表
| 型号 model | 铸钢型 Cast steel type |
| 口径范围 Caliper range | DN25-DN400 |
| 适用温度 application temperature | ≤300℃ |
| 适用介质 application media | 水、蒸汽、油品 water、Steam and oil |

A47H带扳手弹簧微启式安全阀外形图
外形尺寸表
| 型号 | 公称直径 | do | D | K | g | g1 | b | f | f1 | Z-d c | DNf | D1 | K1 | g2 | g | b1 | f | f1' | Z1- c d1 | L | L1 | aH |
| A47H-16C | 20 | 15 | 105 | 75 | 55 | 16 | 2 | 4-14 | 20 | 105 | 75 | 55 | 15 | 2 | 4-14 | 100 | 85 | 270 | ||||
| 25 | 20 | 115 | 85 | 65 | 16 | 2 | 4-14 | 25 | 115 | 85 | 65 | 15 | 2 | 4-14 | 100 | 85 | 270 | |||||
| 32 | 25 | 140 | 100 | 75 | 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 | 800 | |||||
| 125 | 100 | 250 | 210 | 185 | 22 | 3 | 8-18 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 190 | 190 | 820 | |||||
| 150 | 125 | 285 | 240 | 210 | 24 | 3 | 8-23 | 150 | 285 | 240 | 210 | 24 | 3 | 8-23 | 205 | 195 | 825 | |||||
| 200 | 150 | 340 | 295 | 285 | 28 | 3 | 12-23 | 200 | 340 | 295 | 285 | 28 | 3 | 12-23 | 240 | 230 | 798 | |||||
| 250 | 200 | 405 | 355 | 320 | 30 | 3 | 12-28 | 250 | 405 | 355 | 320 | 30 | 3 | 12-28 | 350 | 320 | 881 | |||||
| 300 | 250 | 460 | 410 | 375 | 30 | 4 | 12-28 | 300 | 460 | 410 | 375 | 30 | 4 | 12-28 | 350 | 320 | 1005 | |||||
| A47H-25 | 20 | 15 | 105 | 75 | 55 | 16 | 2 | 4-14 | 20 | 105 | 75 | 55 | 15 | 2 | 4-14 | 100 | 85 | 270 | ||||
| 25 | 20 | 115 | 85 | 65 | 16 | 2 | 4-14 | 25 | 115 | 85 | 65 | 15 | 2 | 4-14 | 100 | 85 | 270 | |||||
| 32 | 25 | 140 | 100 | 75 | 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 | 150 | 135 | 400 | |||||
| 100 | 80 | 230 | 190 | 160 | 24 | 3 | 8-23 | 100 | 220 | 180 | 155 | 20 | 3 | 8-18 | 170 | 160 | 800 | |||||
| 125 | 100 | 270 | 220 | 185 | 28 | 3 | 8-28 | 125 | 250 | 210 | 185 | 22 | 3 | 8-18 | 190 | 190 | 820 | |||||
| 150 | 125 | 300 | 250 | 215 | 30 | 3 | 8-28 | 150 | 285 | 240 | 210 | 24 | 3 | 8-23 | 205 | 195 | 825 | |||||
| 200 | 150 | 380 | 310 | 275 | 34 | 3 | 12-26 | 200 | 340 | 295 | 285 | 28 | 3 | 12-23 | 240 | 230 | 798 | |||||
| 250 | 200 | 425 | 370 | 332 | 36 | 3 | 12-30 | 240 | 405 | 355 | 320 | 30 | 3 | 12-28 | 350 | 320 | 881 | |||||
| 300 | 250 | 485 | 430 | 360 | 40 | 4 | 15-30 | 300 | 480 | 410 | 375 | 30 | 4 | 12-28 | 350 | 320 | 1005 |
| A47H-40 | 20 | 15 | 103 | 75 | 51 | 55 | 16 | 2 | 4 | 4-14 | 20 | 105 | 75 | 55 | 18 | 2 | 4 | 4-14 | 100 | 85 | 270 | |
| 25 | 20 | 115 | 85 | 58 | 65 | 18 | 2 | 4 | 4-14 | 25 | 115 | 85 | 65 | 18 | 2 | 4 | 4-14 | 100 | 85 | 270 | ||
| 32 | 25 | 140 | 100 | 86 | 78 | 18 | 2 | 4 | 4-18 | 32 | 140 | 100 | 78 | 18 | 2 | 4 | 4-18 | 115 | 100 | 312 | ||
| 40 | 32 | 150 | 110 | 78 | 85 | 18 | 3 | 4 | 4-18 | 40 | 150 | 110 | 85 | 18 | 3 | 4 | 4-18 | 120 | 110 | 320 | ||
| 50 | 40 | 165 | 125 | 88 | 100 | 20 | 3 | 4 | 4-18 | 50 | 165 | 125 | 100 | 20 | 3 | 4 | 4-18 | 135 | 120 | 360 | ||
| 65 | 50 | 185 | 145 | 110 | 120 | 22 | 3 | 4 | 8-18 | 65 | 185 | 145 | 120 | 20 | 3 | 4 | 4-18 | 140 | 130 | 395 | ||
| 80 | 65 | 200 | 160 | 121 | 135 | 22 | 3 | 4 | 8-18 | 80 | 200 | 160 | 135 | 20 | 3 | 8 | 8-18 | 150 | 135 | 400 | ||
| 100 | 80 | 235 | 190 | 150 | 160 | 24 | 3 | 4-5 | 8-23 | 100 | 220 | 160 | 155 | 22 | 3 | 8 | 8-18 | 170 | 160 | 800 | ||
| 125 | 100 | 270 | 220 | 176 | 188 | 28 | 3 | 4-5 | 8-26 | 125 | 250 | 210 | 185 | 22 | 3 | 8 | 8-18 | 190 | 190 | 820 | ||
| 150 | 125 | 300 | 250 | 204 | 218 | 30 | 3 | 4-5 | 8-26 | 150 | 285 | 240 | 210 | 24 | 3 | 8 | 8-23 | 205 | 195 | 825 | ||
| 200 | 150 | 375 | 320 | 260 | 282 | 38 | 3 | 4-5 | 12-30 | 200 | 340 | 295 | 265 | 28 | 3 | 12 | 12-23 | 240 | 230 | 768 | ||
| 250 | 200 | 450 | 385 | 313 | 345 | 42 | 3 | 4-5 | 12-34 | 250 | 405 | 355 | 320 | 30 | 3 | 12 | 12-26 | 350 | 320 | 981 | ||
| 300 | 250 | 515 | 450 | 354 | 408 | 46 | 4 | 4-5 | 16-30 | 300 | 460 | 410 | 375 | 30 | 4 | 12 | 12-26 | 350 | 320 | 1005 | ||
| A47H-84 A47V-84 | 20 | 15 | 130 | 90 | 51 | 68 | 20 | 2 | 4 | 4-18 | 20 | 105 | 75 | 55 | 51 | 18 | 2 | 4 | 4-14 | 100 | 95 | 301 |
| 25 | 20 | 140 | 100 | 58 | 78 | 22 | 2 | 4 | 4-18 | 25 | 115 | 85 | 65 | 58 | 18 | 2 | 4 | 4-14 | 100 | 95 | 301 | |
| 32 | 25 | 155 | 110 | 56 | 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 | 185 | 135 | 88 | 105 | 26 | 3 | 4 | 4-23 | 50 | 165 | 125 | 100 | 88 | 20 | 3 | 4 | 4-18 | 160 | 125 | 395 | |
| 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 | 255 | 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 | 230 | 260 | 738 | |
| A47H-100 A47Y-100 | 20 | 15 | 130 | 90 | 51 | 68 | 22 | 2 | 4 | 4-18 | 20 | 105 | 75 | 55 | 51 | 18 | 2 | 4 | 4-14 | 100 | 95 | 301 |
| 25 | 20 | 140 | 100 | 58 | 78 | 24 | 2 | 4 | 4-18 | 25 | 115 | 85 | 65 | 58 | 18 | 2 | 4 | 4-14 | 100 | 95 | 301 | |
| 32 | 25 | 155 | 110 | 56 | 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 | 395 | |
| 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 | 260 | 204 | 250 | 46 | 3 | 4-5 | 12-34 | 150 | 300 | 250 | 218 | 204 | 30 | 3 | 4-5 | 8-26 | 230 | 260 | 738 |

型号:
A42Y-10C/A42Y-16C/A42Y-25C/A42Y-40C/A42Y-64C/A42Y-100C/A42Y-10C/A42Y-16P/A42Y-25P/A42Y-40P/A42Y-64P/A42Y-100P/A42Y-10C/A42Y-16R/A42Y-25R/A42Y-40R/A42Y-64R/A42Y-100R规格:
DN25-DN400压力:
10PN-100PN材质:
铸钢、不锈钢、双向不锈钢
型号:
A42C-150LB/A42C-3000LB/A42C-600LB/A42P-150LB/A42P-3000LB/A42P-600LB/A42R-150LB/A42R-3000LB/A42R-600LB规格:
DN20-DN300压力:
150LB-600LB材质:
铸钢、不锈钢、双向不锈钢
型号:
A61Y-16P/A61Y-25P/A61Y-40P/A61Y-64P/A61Y-100P/A61Y-160P/A61Y-320P/A61Y-16R/A61Y-25R/A61Y-40R/A61Y-64R/A61Y-100R/A61Y-160R/A61Y-320R规格:
DN10-DN25压力:
16PN-320PN材质:
不锈钢