对夹式止回阀

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H76对夹双瓣旋启式止回阀

H76对夹双瓣旋启式止回阀

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图文传真:0577-86867816

概述

H76对夹双瓣旋启蝶式止回阀用于纯净管路及工业、环保、水处理、高层建筑给排水管路,阻止介质逆向流动之用。该止回阀采用对夹式,蝶板为两个半圆,且采用弹簧强制复位,密封面可为本体堆焊耐磨材料或衬橡胶,使用范围广,密封可靠。

特点

1、体积小,重量轻,结构紧凑、维修方便
2、阀板采用对偶式,在弹簧的弹性力下矩下可自行速闭
3、因速闭作用,可防止介质倒流
4、阀体结构长度尺寸小,刚性好
5、安全方便,可用于水平垂直两个方向安装

执行标准

1、法兰连接尺寸:GB/T1724.1-98
2、结构长度:GB/T12221-1989,ISO5752-82

结构示意图

H76对夹双瓣旋启式止回阀结构示意图

材料及主要参数

配管法兰公称压力常规产品型号
JB/T74~90
GB/T9112~9124
HG50592~20614
PN1.0MPaH76H-10CH76W-10PH76W-10P8H76W-10P3H76W-10RH76W-10R8H76W-10R3
PN1.6MPaH76H-16CH76W-16PH76W-16PH76W-16P3H76W-16RH76W-16R8H76W-16R3
PN2.5MPaH76H-25H76W-25PH76W-25P8H76W-25P3H76W-25RH76W-25R8H76W-25R3
PN4.0MPaH76H-40H76W-40PH76W-40P8H76W-40P3H76W-40RH76W-40R8H76W-40R3
PN6.3MPaH76H-63H76W-63PH76W-63P8H76W-63P3H76W-63RH76W-63R8H76W-63R3
PN10.0MPaH76H-100H76W-100PH76W-100P8H76W-100P3H76W-100RH76W-100R8H76W-100R3
PN13.0MPaH76H-160H76W-160PH76W-160P8H76W-160P3H76W-160RH76W-160R8H76W-160R3
PN20.0MPaH76H-200H76W-200PH76W-200P8H76W-200P3H76W-200RH76W-200R8H76W-200R3
PN25.0MPaH76H-250H76W-250PH76W-250P8H76W-250P3H76W-250RH76W-250R8H76W-250R3
GB/T9112~9124
HG20615~20635
SH3406
PN2.0MPaH76H-20C
H76W-20P8H76W-20P3
H76W-20R8H76W-20R3
PN5.0MPaH76H-50
H76W-50P8H76W-50P3
H76W-50R8H76W-50R3
PN11.0MPaH76H-110
H76W-110P8H76W-110P3
H76W-110R8H76W-110R3
PN15.0MPaH76H-150
H76W-150P8H76W-150P3
H76W-150R8H76W-150R3
PN26.0MPaH76H-260
H76W-260P8H76W-260P3
H76W-260R8H76W-260R3
PN42.0MPaH76H-420
H76W-420P8H76W-420P3
H76W-420R8H76W-420R3

Class150H76H-A1C
H76W-A1P8H76W-A1P3
H76W-A1R8H76W-A1R3
Class300H76H-A3
H76W-A3P8H76W-A3P3
H76W-A3R8H76W-A3R3
Class600H76H-A6
H76W-A6P8H76W-A6P3
H76W-A6R8H76W-A6R3
Class900H76H-9
H76W-9P8H76W-9P3
H76W-9R8H76W-9R3
Class1500H76H-15
H76W-15P8H76W-15P3
H76W-15R8H76W-15R3
Class2500H76H-A25
H76H-A25P8H76H-A25P3
H76H-A25R8H76H-A25R3
主要 零件 材料阀体WCB(A105)ZG1Cr18Ni9TiCFB(304)CF3(304L)ZG1Cr18Ni12Mo2TiCF8M(316)CF3M(316M)
阀擗CF8CF8CF8CF3CF9MCF8MCF3M
目轴2Cr131Cr18Ni9Ti0Cr18Ni900Cr19Ni10ZG1Cr18Ni12Mo2Ti0Cr17Ni12Mo200Cr17Ni14Mo2
弹簧0Cr18Ni90Cr18Ni90Cr18Ni900Cr19Ni1000Cr17Ni14Mo200Cr17Ni14Mo200Cr17Ni14Mo2
适用工况适用介质水、蒸汽、 油品等硝酸等腐蚀性介质强氧化性 介质醋酸等腐蚀性介质尿素等腐 蚀性介质
适用温度(℃)-29~425-196~540-196~425-196~540-196~455
注:本表为常规对夹式止回阀的型号编制,主要零件材料及适用工况,其他要求及其型号编制参见对夹式止回阀型号编制方法

主要尺寸及重量

压力级公称通径R寸Cmm)配管法兰(供参考)
NPSDNLDD3D2重量
(Kg)
螺栓孔
中心圆直径D1
螺栓
数量
螺栓直径d螺栓长度L1
inmmRIRJ
Cllass150
PN2.0MPa
2506010356512120.545/8M16140155
21/2656712273653139.545/8M16150165
3807313588804152.545/8M16160175
4100731731081026190.585/8M16170185
5125861951321278216.083/4M20190205
61509822016015213241.583/4M20205220
820012727721020325298.583/4M20240255
1025014633726625439362.0127/8M24270285
1230018140731030554432.0127/8M24310325
1435018444835535080476.0121M27325340
16400191512405400117540.0161M27340355
18450203547455450138578.01611/8M30365380
20500319604505500163635.02011/8M30385400
24600222715605600331749.5203/4M33405420
28700305773700700380795.5403/4M20455-
30750305824750746425846.0443/4M20455-
32800305878800796560900.0487/8M20460-
369003689839108986401009.5441M24540-
4210504321142105510509601171.54811/8M27625-
48120052413021205120014001335.0445/8M30740-
Class300
PN5.0MPa
2506011058513127.083/4M16155175
21/2656712873654149.083/4M20175195
3807314788806168.583/4M20190210
4100731791081028200.083/4M20195215
51258621413212715235.083/4M20215235
61509824916015218270.0123/4M20230250
820012730521020331330.0127/8M24280300
1025014635926625451387.5161M27315335
1230018142031030577451.01611/8M30365385
14350222483355350117514.52011/8M30410430
16400232537405400190571.52011/4M33435455
18450264594455450200628.52411/4M33475495
20500292652505500265686.02411/4M33510535
24600318772608600410813.02411/2M39560585
30750368882740735660921.03613/8M36650-
36900483104488087310201089.03215/8M42800-
42105056811961045103515401244.53613/4M45920-
48120062913651190117922601416.04017/8M481010-

主要尺寸及重量

压力级公称通径R寸Cmm)配管法兰(供参考)
NPSDNLDD3D2重量
(Kg)
螺栓孔中心
圆直径D1
螺栓
数量
螺栓
直径d
螺栓
长度L1
inmmRIRJ
Cllass600
PN11.0MPa
2506011058514127.085/8M16175180
21/2656712873655149.083/4M20195200
3807314788808168.583/4M20210215
41007919110810211216.087/8M24235240
512510523913612720267.081M27280285
615013626416215226292.0121M27320325
820016531812120055349.01211/8M30370375
1025021339826625095432.01611/4M33440445
12300229455312305140489.02011/4M33460465
1435027340355337223527.02013/8M36520525
16400305562400387360603.02011/2M39575580
18450362610450438395654.02015/8M42650655
20500368680500489518724.02415/8M42670680
24600438786600591836838.02417/8M48780790
Cllass900
PN15.0MPa
2507014058518165.087/8M24225230
21/26583162736511190.581M27250255
38083165908014190.587/8M24240245
410010220410810220235.0811/8M30285290
512511024513612730279.5811/4M33310315
615015928016215042317.51211/8M30365370
820020635021220084393.51213/8M36440445
10250241432266250145470.01613/8M36490495
12300292495312305220533.52013/8M36560565
14350356518355337350559.02011/2M39645655
16400384572400387470616.02015/8M42685695
18450451635450438605686.02017/8M48790805
20500451695496487820749.5202M52810825
246004958356005911050901.52021/2M64945965
2507014058518165.087/8M24225230
Cllass1500
PN26.0MPa
21/26583162736511190.581M27250255
38083172908019203.0811/8M30270275
410010220710810226241.5811/4M33310315
512511025213612751292.0811/2M39370375
615015928616215068317.51213/8M36430440
8200206356212200130393.51215/8M42510520
10250248433266254210482.51217/8M48600610
12300305518312305384571.5162M52695715
14350356576355377550635.01621/4M56775800
16400384639400387635705.01621/2M64850880

主要尺寸及重量

压力级公称通径尺寸(mm)重量
(kg)
配管法兰(供参考)
NPSDNLDD3D2螺栓孔中心
圆直径D1
螺栓
数量
螺栓直径d螺栓
长度L1
inmm
Class2500
PN42.0MPa
250701431434210171.581M27255260
21/265831661665218197.0811/8M30290305
380861941946226228.5811/4M33320330
41001052322328840273.0811/2M39370380
512511027727710059324.0813/4M45420435
615015931531515090368.582M52515530
8200206385385180150438.0122M52600620
10250254474474225240539.51221/2M64750775
12300305547547266440619.01223/4M70855885

主要尺寸及重量

公称压力
PNMPa
公称通径
DNmm
尺寸(mm)重量
(Kg)
配管法兰(供参考)
LDD3D2螺栓孔中心
圆直径D1
螺栓
数量
螺栓直径
d
螺栓
长度 Ll
PN1.0MPa5060108565121254M16150
6567128736531454M16155
8073142888041608M16160
1007316210810261808M16165
1258619213212782108M16180
15098218160152132408M20205
200127273210203242958M20235
2501463282662543735012M20255
3001813783103055040012M20290
3501844383553507646016M20295
40019148940540011051516M24310
45020353945545013556520M24325
50021959450550015862020M24345
60022269660560032072520M27355
70030581170067538084024M27440
80030591880079656095024M30450
9003681018903898640105028M30520
1000432112410551050900116028M33590
12005241340120512001400138032M36695
PN1.6MPa50600108565121254M16150
6567128736531454M16155
8073142888041608M16160

主要尺寸及重量

公称压力
PN MPa
公称
通径
尺寸(mm)重量
(Kg)
配管法兰(供参考)
LDD3D2累栓孔中心
圆直径D1
螺栓
数量
螺栓
直径
螺栓
长度Ll
PN1.6MPa1007316210810261808M16165
1258619213212782108M16180
15098218160152132408M20205
2001272732102032429512M20235
2501463292662543935512M24265
3001813843103055041012M24305
3501844443553507647016M24310
40019149640540011052516M27330
45020355645545013558520M27345
50021961850550015865020M30370
60022273260560032077020M33380
70030580270069538084024M33470
80030591280079656095024M36475
9003681012903898640105028M36545
1000432112610551050900117028M39620
12005241340120512001400139032M45735
PN2.5MPa5060108565121254M16150
6567128736531458M16160
8073142888041608M16170
1007316810810261908M20180
1258619413212782208M24205
15098224160152142508M24220
2001272842102032731012M24255
2501463412662544237012M27285
3001814013103055443016M27325
3501844583553508649016M30340
4001915154054012055016M33360
45020356545545014860020M33375
50021962250550016566020M33395
60022273260560034077020M36410
70030583170069540087524M39500
80030594280079658099024M45520
9003681040903898660109028M45590
1000432115510551050960121028M52675
12005241365120512001440142032M52790

主要尺寸及重量

公称压力
PN MPa
公称通径
DN mm
尺寸(mm)重量
(Kg)
配管法兰(供参考)
LDD3D2螺栓孔中心
圆直径D1
螺栓
数量
螺栓
直径d
螺栓
长度L1
RF、MFMRJ
PN4.0MPa5060108585131254M16150-
6567125736541458M16160-
8073142888061608M16170-
1007316810810281908M20180-
12586194132127132208M24205-
15098224160152162508M24220-
2001272912102032832012M27270-
2501463532662544938512M30300-
3001814183103057645016M303485-
35022247535535011451016M33400-
40023254740540019058516M36425-
45026457245545020061020M36470-
50029262650550026067020M39505-
60031874560860040479520M45575-
PN6.3MPa5060114585141354M20170185
6567138736551608M20180195
8073148888071708M20190205
10079174108102102008M24210225
125105221132127162408M27250265
150136248162152202808M30290305
2001653102122003834512M33335350
2502133622662506240012M33395410
30022942231030510046016M33420435
35027348735535016052516M36480495
40030554140540026058516M39525540
PN10.0MPa5060120585151454M24185200
6567144736571708M24195210
80731548880101808M24205220
10079181108102122108M27225240
125105218132127192508M30265280
1501362581621522529012M30305320
2001653242122005636012M33355370
2502133922662509443012M36425440
30022945631230514250016M39465480
35027351035535023056016M45535550
40030557040540036662016M45585600

主要尺寸及重量

公称压力
PN MPa
公称通径
DN mm
R寸(mm)重量
(Kg)
配管法兰(供参考)
LDD3D2螺栓孔中心
圆直径D1
螺栓
数量
螺栓
直径d
螺栓
长度Ll
RF、MFMRJ
PN16.0MPa
(JB/T74-90)
5070142565181658M22205220
65831627365111908M27245260
80831769080162058M27250265
100102208108102192408M30280295
125110247136127332858M36335350
1501592801621504031812M36385405
2002063562122038440012M42470490
25024143526625014648512M48535555
30029262031230523057016M48610540
PN16.0MPa
(GB/T9112-9124、
HG 20592-20614)
5070120565171454M24210225
65831447365101708M24235250
80831549080141808M24245260
100102181108102172108M27280295
125110218136127282508M30305320
1501592581621523629012M30365385
2002063252122037836012M33425445
25024138926625413043012M39495515
30029245931230521050016M39570600
PN20.0MPa
(HG 20592-20614)
5070136565181608M22215230
65831747365162038M27255270
80831989080222308M30270285
100102254108102352928M36330345
1251102801361275031812M36355375
1501593161621527836012M42430450
20020639021220312044012M48510530
25024851826625422057216M52595625
PN25.0MPa
(HG 20592-20614)
5070124565181508M24215230
65831547365141808M24235250
80831719080202008M27250265
100102203108102282358M30290305
125102431361274427512M30310325
1501592851621527032012M33385405
20020635921220311040012M39470490
25024844326625420049016M45560580
30030554031230535059016M48665695

注:1、不同的法兰标准尺寸有一定的差异,故配管法兰的螺栓直径d、螺栓长度L1等尺寸仅供参考.本表中配管法兰尺寸主要以JB/T74~90标准系列2为依据. 2、RF表示突面法兰;MFM表凹凸面法兰;RJ表示环连接面法兰.

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