產(chǎn)品詳情
H76h/Y/W止回閥概述:
H76對夾雙瓣旋啟蝶式止回閥用于純凈管路及工業(yè)、環(huán)保、水處理、高層建筑給排水管路,阻止介質(zhì)逆向流動之用。該止回閥采用對夾式,蝶板為兩個半圓,且采用彈簧強制復位,密封面可為本體堆焊耐磨材料或襯橡膠,使用范圍廣,密封可靠。
特點
1、體積小,重量輕,結(jié)構(gòu)緊湊、維修方便
2、閥板采用對偶式,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)長度尺寸小,剛性好
5、安全方便,可用于水平垂直兩個方向安裝
執(zhí)行標準
1、法蘭連接尺寸:GB/T1724.1-98
2、結(jié)構(gòu)長度:GB/T12221-1989,ISO5752-82
結(jié)構(gòu)示意圖
材料及主要參數(shù)
配管法蘭 | 公稱壓力 | 常規(guī)產(chǎn)品型號 | ||||||
---|---|---|---|---|---|---|---|---|
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)對夾式止回閥的型號編制,主要零件材料及適用工況,其他要求及其型號編制參見對夾式止回閥型號編制方法 |
主要尺寸及重量
壓力級 | 公稱通徑 | R寸Cmm) | 配管法蘭(供參考) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NPS | DN | L | D | D3 | D2 |
重量 (Kg) |
螺栓孔 中心圓直徑D1 |
螺栓 數(shù)量 |
螺栓直徑d | 螺栓長度L1 | |||
in | mm | RI | RJ | ||||||||||
Cllass150 PN2.0MPa |
2 | 50 | 60 | 103 | 56 | 51 | 2 | 120.5 | 4 | 5/8 | M16 | 140 | 155 |
21/2 | 65 | 67 | 122 | 73 | 65 | 3 | 139.5 | 4 | 5/8 | M16 | 150 | 165 | |
3 | 80 | 73 | 135 | 88 | 80 | 4 | 152.5 | 4 | 5/8 | M16 | 160 | 175 | |
4 | 100 | 73 | 173 | 108 | 102 | 6 | 190.5 | 8 | 5/8 | M16 | 170 | 185 | |
5 | 125 | 86 | 195 | 132 | 127 | 8 | 216.0 | 8 | 3/4 | M20 | 190 | 205 | |
6 | 150 | 98 | 220 | 160 | 152 | 13 | 241.5 | 8 | 3/4 | M20 | 205 | 220 | |
8 | 200 | 127 | 277 | 210 | 203 | 25 | 298.5 | 8 | 3/4 | M20 | 240 | 255 | |
10 | 250 | 146 | 337 | 266 | 254 | 39 | 362.0 | 12 | 7/8 | M24 | 270 | 285 | |
12 | 300 | 181 | 407 | 310 | 305 | 54 | 432.0 | 12 | 7/8 | M24 | 310 | 325 | |
14 | 350 | 184 | 448 | 355 | 350 | 80 | 476.0 | 12 | 1 | M27 | 325 | 340 | |
16 | 400 | 191 | 512 | 405 | 400 | 117 | 540.0 | 16 | 1 | M27 | 340 | 355 | |
18 | 450 | 203 | 547 | 455 | 450 | 138 | 578.0 | 16 | 11/8 | M30 | 365 | 380 | |
20 | 500 | 319 | 604 | 505 | 500 | 163 | 635.0 | 20 | 11/8 | M30 | 385 | 400 | |
24 | 600 | 222 | 715 | 605 | 600 | 331 | 749.5 | 20 | 3/4 | M33 | 405 | 420 | |
28 | 700 | 305 | 773 | 700 | 700 | 380 | 795.5 | 40 | 3/4 | M20 | 455 | - | |
30 | 750 | 305 | 824 | 750 | 746 | 425 | 846.0 | 44 | 3/4 | M20 | 455 | - | |
32 | 800 | 305 | 878 | 800 | 796 | 560 | 900.0 | 48 | 7/8 | M20 | 460 | - | |
36 | 900 | 368 | 983 | 910 | 898 | 640 | 1009.5 | 44 | 1 | M24 | 540 | - | |
42 | 1050 | 432 | 1142 | 1055 | 1050 | 960 | 1171.5 | 48 | 11/8 | M27 | 625 | - | |
48 | 1200 | 524 | 1302 | 1205 | 1200 | 1400 | 1335.0 | 44 | 5/8 | M30 | 740 | - | |
Class300 PN5.0MPa |
2 | 50 | 60 | 110 | 58 | 51 | 3 | 127.0 | 8 | 3/4 | M16 | 155 | 175 |
21/2 | 65 | 67 | 128 | 73 | 65 | 4 | 149.0 | 8 | 3/4 | M20 | 175 | 195 | |
3 | 80 | 73 | 147 | 88 | 80 | 6 | 168.5 | 8 | 3/4 | M20 | 190 | 210 | |
4 | 100 | 73 | 179 | 108 | 102 | 8 | 200.0 | 8 | 3/4 | M20 | 195 | 215 | |
5 | 125 | 86 | 214 | 132 | 127 | 15 | 235.0 | 8 | 3/4 | M20 | 215 | 235 | |
6 | 150 | 98 | 249 | 160 | 152 | 18 | 270.0 | 12 | 3/4 | M20 | 230 | 250 | |
8 | 200 | 127 | 305 | 210 | 203 | 31 | 330.0 | 12 | 7/8 | M24 | 280 | 300 | |
10 | 250 | 146 | 359 | 266 | 254 | 51 | 387.5 | 16 | 1 | M27 | 315 | 335 | |
12 | 300 | 181 | 420 | 310 | 305 | 77 | 451.0 | 16 | 11/8 | M30 | 365 | 385 | |
14 | 350 | 222 | 483 | 355 | 350 | 117 | 514.5 | 20 | 11/8 | M30 | 410 | 430 | |
16 | 400 | 232 | 537 | 405 | 400 | 190 | 571.5 | 20 | 11/4 | M33 | 435 | 455 | |
18 | 450 | 264 | 594 | 455 | 450 | 200 | 628.5 | 24 | 11/4 | M33 | 475 | 495 | |
20 | 500 | 292 | 652 | 505 | 500 | 265 | 686.0 | 24 | 11/4 | M33 | 510 | 535 | |
24 | 600 | 318 | 772 | 608 | 600 | 410 | 813.0 | 24 | 11/2 | M39 | 560 | 585 | |
30 | 750 | 368 | 882 | 740 | 735 | 660 | 921.0 | 36 | 13/8 | M36 | 650 | - | |
36 | 900 | 483 | 1044 | 880 | 873 | 1020 | 1089.0 | 32 | 15/8 | M42 | 800 | - | |
42 | 1050 | 568 | 1196 | 1045 | 1035 | 1540 | 1244.5 | 36 | 13/4 | M45 | 920 | - | |
48 | 1200 | 629 | 1365 | 1190 | 1179 | 2260 | 1416.0 | 40 | 17/8 | M48 | 1010 | - |