设计与制造 | 结构长度 | 法兰尺寸 | 对焊边接尺寸 | 压力 -温度 | 试验 -检验 |
API6D、600 | ANSI B16.10 | ANSI B16.5 | ANSI B16.25 | ANSI B16.34 | API598、API6D |
公称压力 (LB) | 强度试验 | 水密封试验 | 气密封试验 |
MPa | Lbf/in2 | MPa | Lbf/in2 | MPa | Lbf/in2 |
150 | 3.1 | 450 | 2.2 | 315 | 0.5~0.7 | 60~100 |
300 | 7-8 | 1125 | 5.6 | 815 |
600 | 15.3 | 2225 | 11.2 | 1630 |
900 | 23.1 | 3350 | 16.8 | 2440 |
1500 | 38.4 | 5575 | 28.1 | 4080 |
2500 | 64.6 | 9367 | 47.4 | 6873 |
磅级 | 规格 | 通径 | 单位 | L | H(全开) | D | D1 | D2 | b | Z-φb | D0 |
300Lb | 2 | 50 | in | 8.50 | 16.70 | 6.5 | 5.00 | 3.62 | 0.88 | 8-0.75 | 8.0 |
mm | 216 | 424 | 165 | 127 | 92 | 22.3 | 8-19 | 200 |
3 | 80 | in | 11.15 | 21.00 | 8.25 | 6.62 | 5.00 | 1.12 | 8-0.88 | 10 |
mm | 283 | 535 | 210 | 168 | 127 | 28.5 | 8-22 | 250 |
4 | 100 | in | 12.00 | 24.20 | 10.0 | 7.88 | 6.19 | 1.25 | 8-0.88 | 10 |
mm | 305 | 615 | 254 | 200 | 157 | 31.8 | 8-22 | 250 |
6 | 150 | in | 15.87 | 31.30 | 12.50 | 10.62 | 8.50 | 1.44 | 8-0.88 | 14 |
mm | 403 | 795 | 318 | 270 | 216 | 36.6 | 12-22 | 350 |
8 | 200 | in | 16.50 | 39.90 | 15.0 | 13.0 | 10.62 | 1.62 | 12-1.0 | 15.7 |
mm | 419 | 1012 | 381 | 330 | 270 | 41.3 | 12-25 | 400 |
10 | 250 | in | 18.00 | 48.50 | 17.50 | 15.25 | 12.75 | 1.88 | 16-1.12 | 17.7 |
mm | 457 | 1231 | 444 | 387.5 | 324 | 47.7 | 16-29 | 450 |
12 | 300 | in | 19.75 | 57.0 | 20.50 | 17.75 | 15.00 | 2.00 | 16-1.25 | 19.7 |
mm | 502 | 1450 | 521 | 451 | 381 | 50.8 | 16-32 | 500 |
14 | 350 | in | 30.00 | 64.8 | 23.00 | 20.25 | 16.25 | 2.12 | 20-1.25 | 23.6 |
mm | 762 | 1645 | 584 | 514.5 | 413 | 54.0 | 20-32 | 600 |
16 | 400 | in | 33.00 | 72.50 | 25.50 | 20.25 | 18.50 | 2.25 | 20-1.38 | 23.6 |
mm | 838 | 1814 | 648 | 571.5 | 470 | 57.2 | 20-35 | 600 |
18 | 450 | in | 36.00 | 76.50 | 28.00 | 24.75 | 21.00 | 2.38 | 24-1.38 | 26.8 |
mm | 914 | 1943 | 711 | 628.5 | 533 | 60.4 | 24-35 | 680 |
20 | 500 | in | 39.00 | 84.80 | 30.50 | 27.0 | 23.00 | 2.50 | 24-1.38 | 38 |
mm | 991 | 2154 | 775 | 686 | 584 | 63.5 | 24-35 | 760 |
24 | 600 | in | 45.00 | 100.50 | 36.0 | 32.0 | 27.25 | 2.75 | 24-1.62 | 36 |
mm | 1143 | 2553 | 914 | 813 | 692 | 69.9 | 24-41 | 915 |
磅级 | 规格 | 通径 | 单位 | L | H(全开) | D | D1 | D2 | b | Z-φb | D0 |
600Lb | 2 | 50 | in | 11.50 | 18 | 6.5 | 5.00 | 3.62 | 1.0 | 8-0.75 | 10 |
mm | 292 | 458 | 165 | 127 | 92 | 25.4 | 8-19 | 250 |
3 | 80 | in | 14.00 | 22.50 | 8.25 | 6.62 | 5.00 | 1.25 | 8-0.88 | 10 |
mm | 356 | 570 | 210 | 168 | 127 | 31.8 | 8-22 | 250 |
4 | 100 | in | 17.00 | 27.2 | 10.75 | 8.50 | 6.19 | 1.5 | 8-1.0 | 14 |
mm | 432 | 390 | 273 | 216 | 157 | 38.1 | 8-25 | 350 |
6 | 150 | in | 22 | 35.8 | 14 | 11.50 | 8.50 | 1.88 | 12-1.12 | 18 |
mm | 559 | 910 | 356 | 292 | 216 | 47.7 | 12-29 | 450 |
8 | 200 | in | 26.00 | 41.9 | 16.5 | 13.75 | 10.62 | 2.19 | 12-1.25 | 19.7 |
mm | 600 | 1064 | 419 | 349 | 270 | 55.6 | 12-32 | 500 |
10 | 250 | in | 31.00 | 49.5 | 20 | 17.00 | 12.75 | 2.5 | 16-1.38 | 23.6 |
mm | 787 | 1257 | 508 | 432 | 324 | 63.5 | 16-35 | 600 |
12 | 300 | in | 33 | 57.8 | 22 | 19.25 | 15.00 | 2.62 | 20-1.38 | 26.8 |
mm | 838 | 1468 | 559 | 489 | 381 | 66.7 | 20-35 | 680 |
14 | 350 | in | 35 | 63.9 | 23.75 | 20.75 | 16.25 | 2.75 | 20-1.50 | 26.9 |
mm | 889 | 1623 | 603 | 527 | 413 | 69.9 | 20-38 | 760 |
16 | 400 | in | 39 | 71.5 | 27 | 23.75 | 18.50 | 3.0 | 20-1.62 | 26.9 |
mm | 991 | 1816 | 686 | 603 | 470 | 76.2 | 20-41 | 760 |
18 | 450 | in | 43 | 82.7 | 29.25 | 25.75 | 21.00 | 3.25 | 20-1.75 | 36 |
mm | 1092 | 21.00 | 743 | 654 | 533 | 82.6 | 20-45 | 915 |
20 | 500 | in | 47 | 88.6 | 32 | 28.5 | 23.00 | 3.5 | 24-1.75 | 37.4 |
mm | 1194 | 2250 | 813 | 724 | 584 | 88.9 | 24-45 | 950 |
24 | 600 | in | 55 | 107.5 | 37 | 33.0 | 27.25 | 4.0 | 24-2.0 | 39.4 |
mm | 1397 | 2730 | 940 | 838 | 692 | 102 | 24-51 | 1000 |
磅级 | 规格 | 通径 | 单位 | L | H(全开) | D | D1 | D2 | b | Z-φb | D0 |
600Lb | 2 | 50 | in | 11.50 | 18 | 6.5 | 5.00 | 3.62 | 1.0 | 8-0.75 | 10 |
mm | 292 | 458 | 165 | 127 | 92 | 25.4 | 8-19 | 250 |
3 | 80 | in | 14.00 | 22.50 | 8.25 | 6.62 | 5.00 | 1.25 | 8-0.88 | 10 |
mm | 356 | 570 | 210 | 168 | 127 | 31.8 | 8-22 | 250 |
4 | 100 | in | 17.00 | 27.2 | 10.75 | 8.50 | 6.19 | 1.5 | 8-1.0 | 14 |
mm | 432 | 390 | 273 | 216 | 157 | 38.1 | 8-25 | 350 |
6 | 150 | in | 22 | 35.8 | 14 | 11.50 | 8.50 | 1.88 | 12-1.12 | 18 |
mm | 559 | 910 | 356 | 292 | 216 | 47.7 | 12-29 | 450 |
8 | 200 | in | 26.00 | 41.9 | 16.5 | 13.75 | 10.62 | 2.19 | 12-1.25 | 19.7 |
mm | 600 | 1064 | 419 | 349 | 270 | 55.6 | 12-32 | 500 |
10 | 250 | in | 31.00 | 49.5 | 20 | 17.00 | 12.75 | 2.5 | 16-1.38 | 23.6 |
mm | 787 | 1257 | 508 | 432 | 324 | 63.5 | 16-35 | 600 |
12 | 300 | in | 33 | 57.8 | 22 | 19.25 | 15.00 | 2.62 | 20-1.38 | 26.8 |
mm | 838 | 1468 | 559 | 489 | 381 | 66.7 | 20-35 | 680 |
14 | 350 | in | 35 | 63.9 | 23.75 | 20.75 | 16.25 | 2.75 | 20-1.50 | 26.9 |
mm | 889 | 1623 | 603 | 527 | 413 | 69.9 | 20-38 | 760 |
16 | 400 | in | 39 | 71.5 | 27 | 23.75 | 18.50 | 3.0 | 20-1.62 | 26.9 |
mm | 991 | 1816 | 686 | 603 | 470 | 76.2 | 20-41 | 760 |
18 | 450 | in | 43 | 82.7 | 29.25 | 25.75 | 21.00 | 3.25 | 20-1.75 | 36 |
mm | 1092 | 21.00 | 743 | 654 | 533 | 82.6 | 20-45 | 915 |
20 | 500 | in | 47 | 88.6 | 32 | 28.5 | 23.00 | 3.5 | 24-1.75 | 37.4 |
mm | 1194 | 2250 | 813 | 724 | 584 | 88.9 | 24-45 | 950 |
24 | 600 | in | 55 | 107.5 | 37 | 33.0 | 27.25 | 4.0 | 24-2.0 | 39.4 |
mm | 1397 | 2730 | 940 | 838 | 692 | 102 | 24-51 | 1000 |
API闸阀是zui常用的截断阀之一,主要用来接通或截断管路中的介质,不适用于调节介质流量。闸阀适用的压力、温度及口径范围很大,尤其适用于中、大口径的管道。
闸阀的主要优点:
(1)流体阻力小。闸阀闸体内部介质通道是直通的,介质流经闸阀时不改变其流动方向,因而流动阻力较小。
(2)启闭较省力。启闭时闸板运动方向与介质流动方向相垂直。与截止阀相比,闸阀的启闭较为省力。
(3)介质流动方向一般不受限制。介质可从闸阀两侧任意方向流过,均能达到接通或截断的目的。便于安装,适用子介质的流动方向可能改变的管路中。
工作原理:
闸阀的启闭件是闸板,闸板的运动方向与流体方向相垂直,闸阀只能作全开和全关,不能作调节和节流。楔式闸阀的闸板可以做成一个整体,叫做刚性闸板,也可以做成能产生微量变形的闸板,以改善其工艺性,弥补密封面角度在加工过程中产生的偏差,这种闸板叫做弹性闸板。闸阀关闭时,密封面可以只依靠介质压力来密封,即依靠介质压力将闸板的密封面压向另一侧的阀座来保证密封面的密封,这就是自密封。大部分闸阀是采用强制密封的,即阀门关闭时,要依靠外力强行将闸板压向阀座,以保证密封面的密封性。