特點(diǎn)
1、體積小，重量輕，結(jié)構(gòu)緊湊、維修方便
2、閥板采用對(duì)偶式，在彈簧的彈性力下矩下可自行速閉
3、因速閉作用，可防止介質(zhì)倒流
4、閥體結(jié)構(gòu)長(zhǎng)度尺寸小，剛性好
5、安全方便，可用于水平垂直兩個(gè)方向安裝
執(zhí)行標(biāo)準(zhǔn)
1、法蘭連接尺寸：GB/T1724.1-98
2、結(jié)構(gòu)長(zhǎng)度：GB/T12221-1989，ISO5752-82
主要尺寸及重量
| 公稱壓力 PNMPa | 公稱通徑 DNmm | 尺寸(mm) | 重量 (Kg) | 配管法蘭(供參考) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| L | D | D3 | D2 | 螺栓孔中心 圓直徑D1 | 螺栓 數(shù)量 | 螺栓直徑 d | 螺栓 長(zhǎng)度 Ll | |||
| PN1.0MPa | 50 | 60 | 108 | 56 | 51 | 2 | 125 | 4 | M16 | 150 |
| 65 | 67 | 128 | 73 | 65 | 3 | 145 | 4 | M16 | 155 | |
| 80 | 73 | 142 | 88 | 80 | 4 | 160 | 8 | M16 | 160 | |
| 100 | 73 | 162 | 108 | 102 | 6 | 180 | 8 | M16 | 165 | |
| 125 | 86 | 192 | 132 | 127 | 8 | 210 | 8 | M16 | 180 | |
| 150 | 98 | 218 | 160 | 152 | 13 | 240 | 8 | M20 | 205 | |
| 200 | 127 | 273 | 210 | 203 | 24 | 295 | 8 | M20 | 235 | |
| 250 | 146 | 328 | 266 | 254 | 37 | 350 | 12 | M20 | 255 | |
| 300 | 181 | 378 | 310 | 305 | 50 | 400 | 12 | M20 | 290 | |
| 350 | 184 | 438 | 355 | 350 | 76 | 460 | 16 | M20 | 295 | |
| 400 | 191 | 489 | 405 | 400 | 110 | 515 | 16 | M24 | 310 | |
| 450 | 203 | 539 | 455 | 450 | 135 | 565 | 20 | M24 | 325 | |
| 500 | 219 | 594 | 505 | 500 | 158 | 620 | 20 | M24 | 345 | |
| 600 | 222 | 696 | 605 | 600 | 320 | 725 | 20 | M27 | 355 | |
| 700 | 305 | 811 | 700 | 675 | 380 | 840 | 24 | M27 | 440 | |
| 800 | 305 | 918 | 800 | 796 | 560 | 950 | 24 | M30 | 450 | |
| 900 | 368 | 1018 | 903 | 898 | 640 | 1050 | 28 | M30 | 520 | |
| 1000 | 432 | 1124 | 1055 | 1050 | 900 | 1160 | 28 | M33 | 590 | |
| 1200 | 524 | 1340 | 1205 | 1200 | 1400 | 1380 | 32 | M36 | 695 | |
| PN1.6MPa | 50 | 600 | 108 | 56 | 51 | 2 | 125 | 4 | M16 | 150 |
| 65 | 67 | 128 | 73 | 65 | 3 | 145 | 4 | M16 | 155 | |
| 80 | 73 | 142 | 88 | 80 | 4 | 160 | 8 | M16 | 160 | |
主要尺寸及重量
| 公稱壓力 PN MPa | 公稱 通徑 | 尺寸(mm) | 重量 (Kg) | 配管法蘭(供參考) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| L | D | D3 | D2 | 累栓孔中心 圓直徑D1 | 螺栓 數(shù)量 | 螺栓 直徑 | 螺栓 長(zhǎng)度Ll | |||
| PN1.6MPa | 100 | 73 | 162 | 108 | 102 | 6 | 180 | 8 | M16 | 165 |
| 125 | 86 | 192 | 132 | 127 | 8 | 210 | 8 | M16 | 180 | |
| 150 | 98 | 218 | 160 | 152 | 13 | 240 | 8 | M20 | 205 | |
| 200 | 127 | 273 | 210 | 203 | 24 | 295 | 12 | M20 | 235 | |
| 250 | 146 | 329 | 266 | 254 | 39 | 355 | 12 | M24 | 265 | |
| 300 | 181 | 384 | 310 | 305 | 50 | 410 | 12 | M24 | 305 | |
| 350 | 184 | 444 | 355 | 350 | 76 | 470 | 16 | M24 | 310 | |
| 400 | 191 | 496 | 405 | 400 | 110 | 525 | 16 | M27 | 330 | |
| 450 | 203 | 556 | 455 | 450 | 135 | 585 | 20 | M27 | 345 | |
| 500 | 219 | 618 | 505 | 500 | 158 | 650 | 20 | M30 | 370 | |
| 600 | 222 | 732 | 605 | 600 | 320 | 770 | 20 | M33 | 380 | |
| 700 | 305 | 802 | 700 | 695 | 380 | 840 | 24 | M33 | 470 | |
| 800 | 305 | 912 | 800 | 796 | 560 | 950 | 24 | M36 | 475 | |
| 900 | 368 | 1012 | 903 | 898 | 640 | 1050 | 28 | M36 | 545 | |
| 1000 | 432 | 1126 | 1055 | 1050 | 900 | 1170 | 28 | M39 | 620 | |
| 1200 | 524 | 1340 | 1205 | 1200 | 1400 | 1390 | 32 | M45 | 735 | |
| PN2.5MPa | 50 | 60 | 108 | 56 | 51 | 2 | 125 | 4 | M16 | 150 |
| 65 | 67 | 128 | 73 | 65 | 3 | 145 | 8 | M16 | 160 | |
| 80 | 73 | 142 | 88 | 80 | 4 | 160 | 8 | M16 | 170 | |
| 100 | 73 | 168 | 108 | 102 | 6 | 190 | 8 | M20 | 180 | |
| 125 | 86 | 194 | 132 | 127 | 8 | 220 | 8 | M24 | 205 | |
| 150 | 98 | 224 | 160 | 152 | 14 | 250 | 8 | M24 | 220 | |
| 200 | 127 | 284 | 210 | 203 | 27 | 310 | 12 | M24 | 255 | |
| 250 | 146 | 341 | 266 | 254 | 42 | 370 | 12 | M27 | 285 | |
| 300 | 181 | 401 | 310 | 305 | 54 | 430 | 16 | M27 | 325 | |
| 350 | 184 | 458 | 355 | 350 | 86 | 490 | 16 | M30 | 340 | |
| 400 | 191 | 515 | 405 | 40 | 120 | 550 | 16 | M33 | 360 | |
| 450 | 203 | 565 | 455 | 450 | 148 | 600 | 20 | M33 | 375 | |
| 500 | 219 | 622 | 505 | 500 | 165 | 660 | 20 | M33 | 395 | |
| 600 | 222 | 732 | 605 | 600 | 340 | 770 | 20 | M36 | 410 | |
| 700 | 305 | 831 | 700 | 695 | 400 | 875 | 24 | M39 | 500 | |
| 800 | 305 | 942 | 800 | 796 | 580 | 990 | 24 | M45 | 520 | |
| 900 | 368 | 1040 | 903 | 898 | 660 | 1090 | 28 | M45 | 590 | |
| 1000 | 432 | 1155 | 1055 | 1050 | 960 | 1210 | 28 | M52 | 675 | |
| 1200 | 524 | 1365 | 1205 | 1200 | 1440 | 1420 | 32 | M52 | 790 | |
材料及主要參數(shù)
| 配管法蘭 | 公稱壓力 | 常規(guī)產(chǎn)品型號(hào) | ||||||
|---|---|---|---|---|---|---|---|---|
| JB/T74～90 GB/T9112～9124 HG50592～20614 | PN1.0MPa | H76H-10C | H76W-10P | H76W-10P8 | H76W-10P3 | H76W-10R | H76W-10R8 | H76W-10R3 |
| PN1.6MPa | H76H-16C | H76W-16P | H76W-16P | H76W-16P3 | H76W-16R | H76W-16R8 | H76W-16R3 | |
| PN2.5MPa | H76H-25 | H76W-25P | H76W-25P8 | H76W-25P3 | H76W-25R | H76W-25R8 | H76W-25R3 | |
| PN4.0MPa | H76H-40 | H76W-40P | H76W-40P8 | H76W-40P3 | H76W-40R | H76W-40R8 | H76W-40R3 | |
| PN6.3MPa | H76H-63 | H76W-63P | H76W-63P8 | H76W-63P3 | H76W-63R | H76W-63R8 | H76W-63R3 | |
| PN10.0MPa | H76H-100 | H76W-100P | H76W-100P8 | H76W-100P3 | H76W-100R | H76W-100R8 | H76W-100R3 | |
| PN13.0MPa | H76H-160 | H76W-160P | H76W-160P8 | H76W-160P3 | H76W-160R | H76W-160R8 | H76W-160R3 | |
| PN20.0MPa | H76H-200 | H76W-200P | H76W-200P8 | H76W-200P3 | H76W-200R | H76W-200R8 | H76W-200R3 | |
| PN25.0MPa | H76H-250 | H76W-250P | H76W-250P8 | H76W-250P3 | H76W-250R | H76W-250R8 | H76W-250R3 | |
| GB/T9112～9124 HG20615～20635 SH3406 | PN2.0MPa | H76H-20C | H76W-20P8 | H76W-20P3 | H76W-20R8 | H76W-20R3 | ||
| PN5.0MPa | H76H-50 | H76W-50P8 | H76W-50P3 | H76W-50R8 | H76W-50R3 | |||
| PN11.0MPa | H76H-110 | H76W-110P8 | H76W-110P3 | H76W-110R8 | H76W-110R3 | |||
| PN15.0MPa | H76H-150 | H76W-150P8 | H76W-150P3 | H76W-150R8 | H76W-150R3 | |||
| PN26.0MPa | H76H-260 | H76W-260P8 | H76W-260P3 | H76W-260R8 | H76W-260R3 | |||
| PN42.0MPa | H76H-420 | H76W-420P8 | H76W-420P3 | H76W-420R8 | H76W-420R3 | |||
| Class150 | H76H-A1C | H76W-A1P8 | H76W-A1P3 | H76W-A1R8 | H76W-A1R3 | |||
| Class300 | H76H-A3 | H76W-A3P8 | H76W-A3P3 | H76W-A3R8 | H76W-A3R3 | |||
| Class600 | H76H-A6 | H76W-A6P8 | H76W-A6P3 | H76W-A6R8 | H76W-A6R3 | |||
| Class900 | H76H-9 | H76W-9P8 | H76W-9P3 | H76W-9R8 | H76W-9R3 | |||
| Class1500 | H76H-15 | H76W-15P8 | H76W-15P3 | H76W-15R8 | H76W-15R3 | |||
| Class2500 | H76H-A25 | H76H-A25P8 | H76H-A25P3 | H76H-A25R8 | H76H-A25R3 | |||
| 主要 零件 材料 | 閥體 | WCB(A105) | ZG1Cr18Ni9Ti | CFB(304) | CF3(304L) | ZG1Cr18Ni12Mo2Ti | CF8M(316) | CF3M(316M) |
| 閥擗 | CF8 | CF8 | CF8 | CF3 | CF9M | CF8M | CF3M | |
| 目軸 | 2Cr13 | 1Cr18Ni9Ti | 0Cr18Ni9 | 00Cr19Ni10 | ZG1Cr18Ni12Mo2Ti | 0Cr17Ni12Mo2 | 00Cr17Ni14Mo2 | |
| 彈簧 | 0Cr18Ni9 | 0Cr18Ni9 | 0Cr18Ni9 | 00Cr19Ni10 | 00Cr17Ni14Mo2 | 00Cr17Ni14Mo2 | 00Cr17Ni14Mo2 | |
| 適用工況 | 適用介質(zhì) | 水、蒸汽、 油品等 | 硝酸等腐蝕性介質(zhì) | 強(qiáng)氧化性 介質(zhì) | 醋酸等腐蝕性介質(zhì) | 尿素等腐 蝕性介質(zhì) | ||
| 適用溫度(℃) | -29～425 | -196～540 | -196～425 | -196～540 | -196～455 | |||
注:本表為常規(guī)對(duì)夾式止回閥的型號(hào)編制,主要零件材料及適用工況,其他要求及其型號(hào)編制參見對(duì)夾式止回閥型號(hào)編制方法 | ||||||||
