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别名:ANSI法兰截止阀
美标法兰截止阀的阀门结构设计吸收了技术,阀体采用球形结构,造型美观,阀座阀瓣采用锥形密封结构,密封可靠。法兰连接钢制截止阀适用于Class150~300,工作温度 29~425℃(碳钢材质)或 40~550℃(不锈钢材质)的各种管路上,用于截断或接通管路中的介质,选用不同的材质,可分别适用于水、蒸汽、油品、硝酸、醋酸、氧化性介质、尿素等多种介质。
1、美标截止阀产品的设计制造符合美国标准ASME B16.34等标准要求。
2、阀体外型为球形或流线形,造型美观,流道形状为直通式,流体阻力小。
3、截止阀的关闭件(阀瓣)与阀座密封面采用锥面密封,关闭力小,耐冲刷,密封可靠。
4、阀座可为更换式阀座,可以任意组合与关闭件密封面材料的配对,以满足各种工况的要求,延长使用寿命。
设计与制造 Design and Manufacture | 结构长度 Face to face/ End to end | 法兰尺寸 Flange Dimension | 对焊连接尺寸Butt welding dimension | 压力-温度 Pressure Temperature Lating | 试验-检验Inspection and Test |
ANSI B16.34 BS1873 | ANSI B16.10 | ANSI B16.5 | ANSI B16.25 | ANSI B16.34 | API 598 |
公称压力PN(Lb) NominalPressure | 强度试验 Shell Test | 水密封试验 Water Seal Test | 气密封试验 Air Seal Test | |||
MPa | Lbf/in2 | MPa | Lbf/in2 | MPa | Lbf/in2 | |
150 | 3.0 | 430 | 2.2 | 315 | 0.4-0.7 | 60-100 |
300 | 7.7 | 1110 | 5.7 | 815 | ||
600 | 15.3 | 2220 | 11.3 | 1630 | ||
900 | 23.0 | 3330 | 17.0 | 2445 | ||
1500 | 38.4 | 5560 | 28.2 | 4080 | ||
2500 | 64.0 | 9255 | 47.0 | 6790 |
体、盖 Body Cover Disc | 阀杆 Stem | 密封面 Sealing Face | 垫片(环) Sealing Shim | 填料 Packing | 工作温度Working Temperature | 适用介质 Suitable Medium |
WCB | 2Cr13 | 13Cr STL 木体材料 With Body Material 尼龙 Nylon | 增强柔性石墨 13Cr/柔性石墨 Enhanced Flexible Graphite 1Cr13/Flexible Graphite SFB-2 08软钢 08 Soft Steal F304 F316 F304L F316L | 柔性石墨 增强柔性石墨 Flexible Graphite Enhanced Flexible Graphite SFB/260 SFP/260 PTFE | ≤425 | 水 蒸汽 油品 Water Steam Petroleum Products |
WC1 | 38CrMoAl 25Cr2MoV | ≤425 | ||||
WC6 | ≤540 | |||||
WC9 | ≤570 | |||||
C5 C12 | ≤540 | |||||
CF8 | F304 | ≤200 | 硝酸 醋酸 尿素 Nitric acid Acetic acid | |||
CF8M | F316 | |||||
CF3 | F304L | |||||
CF3M | F316L |
DN | 150Lb 凸面法兰(RF) 主要尺寸Dimensions(mm) | 重量 Weight | |||||||||||||||||||
mm | in | L | D | D1 | D2 | b | n-φd | H | D0 | ||||||||||||
15 | 1/2 | 108 | 89 | 60.5 | 35 | 11.2 | 4-16 | 241 | 100 | 6.9 | |||||||||||
20 | 3/4 | 117 | 98 | 69.9 | 43 | 12.7 | 4-16 | 241 | 100 | 9.8 | |||||||||||
25 | 1 | 127 | 108 | 79.2 | 51 | 14.2 | 4-16 | 242 | 125 | 13.5 | |||||||||||
32 | 11/4 | 140 | 117 | 89 | 63 | 16 | 4-16 | 280 | 160 | 19.5 | |||||||||||
40 | 11/2 | 165 | 127 | 98.6 | 73 | 17.5 | 4-16 | 286 | 160 | 28.5 | |||||||||||
50 | 2 | 203 | 152 | 120.7 | 92 | 19 | 4-19 | 368 | 200 | 18 | |||||||||||
65 | 21/2 | 216 | 178 | 139.7 | 105 | 22.4 | 4-19 | 387 | 200 | 30 | |||||||||||
80 | 3 | 241 | 190 | 152.4 | 127 | 24 | 4-19 | 411 | 250 | 41 | |||||||||||
100 | 4 | 292 | 229 | 190.5 | 157 | 24 | 4-19 | 454 | 250 | 64 | |||||||||||
125 | 5 | 356 | 254 | 216.0 | 186 | 24 | 8-22.5 | 455 | 350 | 86 | |||||||||||
150 | 6 | 406 | 279 | 241.3 | 216 | 25.4 | 8-22.5 | 541 | 350 | 113 | |||||||||||
200 | 8 | 495 | 343 | 298.5 | 270 | 28.4 | 8-22.5 | 651 | 450 | 178 | |||||||||||
250 | 10 | 622 | 406 | 362.0 | 324 | 30.2 | 12-25.4 | 800 | 450 | 270 | |||||||||||
300 | 12 | 698 | 483 | 431.8 | 381 | 32 | 12-25.4 | 1231 | 600 | 350 | |||||||||||
350 | 14 | 787 | 533 | 476.3 | 413 | 35 | 12-29 | 1450 | 600 | 460 | |||||||||||
400 | 16 | 914 | 597 | 539.8 | 470 | 36.6 | 26-29 | 1645 | 600 | 590 | |||||||||||
DN | 300Lb 凸面法兰(RF) 主要尺寸Dimensions(mm) | 重量 Weight | |||||||||||||||||||
15 | 1/2 | 152 | 95 | 66.5 | 35 | 14.2 | 4-16 | 241 | 140 | 7.7 | |||||||||||
20 | 3/4 | 178 | 117 | 82.5 | 43 | 16 | 4-19 | 241 | 140 | 11.3 | |||||||||||
25 | 1 | 203 | 123 | 89 | 51 | 17.5 | 4-19 | 283 | 160 | 16.8 | |||||||||||
32 | 11/4 | 216 | 133 | 98.5 | 63 | 19 | 4-19 | 320 | 200 | 21.2 | |||||||||||
40 | 11/2 | 229 | 155 | 114.3 | 73 | 20.6 | 4-22.5 | 322 | 200 | 32.6 | |||||||||||
50 | 2 | 267 | 165 | 127 | 92 | 22.4 | 8-19 | 399 | 200 | 25 | |||||||||||
65 | 21/2 | 292 | 190 | 149.4 | 105 | 25.4 | 8-22.5 | 438 | 250 | 30 | |||||||||||
80 | 3 | 318 | 210 | 168.1 | 127 | 28.4 | 8-22.5 | 464 | 280 | 35 | |||||||||||
100 | 4 | 356 | 254 | 200.2 | 157 | 31.8 | 8-22.5 | 565 | 350 | 56 | |||||||||||
125 | 5 | 400 | 279 | 235 | 186 | 35 | 8-22.5 | 614 | 350 | 96 | |||||||||||
150 | 6 | 444 | 318 | 269.7 | 216 | 36.6 | 12-25.4 | 717 | 400 | 120 | |||||||||||
200 | 8 | 559 | 381 | 330.2 | 270 | 41.2 | 12-25.4 | 930 | 500 | 212 | |||||||||||
250 | 10 | 622 | 444 | 387.4 | 324 | 47.8 | 16-28.5 | 1012 | 550 | 330 | |||||||||||
300 | 12 | 711 | 521 | 450.8 | 381 | 50.8 | 16-32 | 1231 | 600 | 472 | |||||||||||
350 | 14 | 762 | 584 | 514.4 | 413 | 54 | 20-32 | 1450 | 600 | 715 | |||||||||||
400 | 16 | 864 | 648 | 571.5 | 470 | 57.2 | 20-35 | 1645 | 600 | 920 | |||||||||||
DN | 600Lb 凸面法兰(RF) 主要尺寸Dimensions(mm) | 重量 Weight | |||||||||||||||||||
mm | in | L | D | D1 | D2 | b | n-φd | H | D0 | ||||||||||||
15 | 1/2 | 165 | 95 | 66.5 | 35 | 14.5 | 4-16 | 285 | 100 | 7.8 | |||||||||||
20 | 3/4 | 190 | 117 | 82.5 | 43 | 16 | 4-19 | 285 | 125 | 12.5 | |||||||||||
25 | 1 | 216 | 124 | 89 | 51 | 17.5 | 4-19 | 313 | 160 | 17.5 | |||||||||||
32 | 11/4 | 229 | 133 | 98.5 | 63 | 21 | 4-19 | 328 | 160 | 23.5 | |||||||||||
40 | 11/2 | 241 | 156 | 114.3 | 73 | 22.5 | 4-22.5 | 365 | 180 | 38.5 | |||||||||||
50 | 2 | 292 | 165 | 127 | 92 | 33 | 8-19 | 444 | 200 | 35 | |||||||||||
65 | 21/2 | 330 | 190 | 149.4 | 105 | 36 | 8-22.5 | 483 | 250 | 50 | |||||||||||
80 | 3 | 356 | 210 | 168.1 | 127 | 39 | 8-22.5 | 533 | 250 | 60 | |||||||||||
100 | 4 | 432 | 273 | 216 | 157 | 45 | 8-25.4 | 622 | 350 | 110 | |||||||||||
125 | 5 | 508 | 330 | 266.7 | 186 | 52 | 8-28.5 | 750 | 350 | 200 | |||||||||||
150 | 6 | 559 | 356 | 292.1 | 216 | 55 | 12-28.5 | 800 | 450 | 230 | |||||||||||
200 | 8 | 660 | 419 | 349.3 | 270 | 63 | 12-32 | 927 | 500 | 410 | |||||||||||
250 | 10 | 787 | 508 | 431.8 | 324 | 71 | 16-35 | 1257 | 600 | 625 | |||||||||||
300 | 12 | 838 | 559 | 489 | 381 | 74 | 20-35 | 1468 | 680 | 860 |