对夹式止回阀详细结构尺寸图-H76型

H76对夹式止回阀根本信息栏品名型号规格压力材质对夹双瓣止回阀H76WDN40-1200mm碳钢；不锈钢H76W、H76H型对夹双瓣止回阀由阀体、蝶形双阀瓣、阀杆及弹簧等零件组成，采用对夹和法兰连接。由于蝶形双瓣行程短，并且有弹簧加载，可显著减少水锤现象。对夹双瓣止回阀结构图技术参数公称压力PN(MPa)11.62.54试验压力强度试验1.52.43.756密封试验1.11.762.754.4适用介质水、蒸汽、油品、污水、酸碱类适用温度橡胶密封面〔X〕-20℃~120℃合金钢密封面〔H〕主体碳钢-29℃~425℃H76系列对夹双瓣旋启式止回阀的型号、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

HG20592

~20614PN1.0MPaH76H-10CH76W-10PH76W-10P8H76W-10P3H76W-10RH76W-10R8H76W-10R3PN1.6MPaH76H-16CH76W-16PH76W-16P8H76W-16P3H76W-16RH76W-16R8H76W-16R3PN2.5MPaH76H-25H76W-25PH76W-25P8H76W-25P3H76W-25RH76W-25R8H76W-25R3PN4.0MPaH76H-40H76W-40PH76W-40P8H76W-40P3H76W-40RH76W-40R8H76W-40R3PN6.3MPaH76H-63H76W-63PH76W-63P8H76W-63P3H76W-63RH76W-63R8H76W-63R3PN10.0MPaH76H-100H76W-100PH76W-100P8H76W-100P3H76W-100RH76W-100R8H76W-100R3PN16.0MPaH76H-160H76W-160PH76W-160P8H76W-160P3H76W-160RH76W-160R8H76W-160R3PN20.0MPaH76H-200H76W-200PH76W-200P8H76W-200P3H76W-200RH76W-200R8H76W-200R3PN25.0MPaH76H-250H76W-250PH76W-250P8H76W-250P3H76W-250RH76W-250R8H76W-250R3GB/T9112

~9124

HG20615

~20635

SH3406PN2.0MPaH76H-20C—H76W-20P8H76W-20P3—H76W-20R8H76W-20R3PN5.0MPaH76H-50—H76W-50P8H76W-50P3—H76W-50R8H76W-50R3PN11.0MPaH76H-110—H76W-110P8H76W-110P3—H76W-110R8H76W-110R3PN15.0MPaH76H-150—H76W-150P8H76W-150P3—H76W-150R8H76W-150R3PN26.0MPaH76H-260—H76W-260P8H76W-260P3—H76W-260R8H76W-260R3PN42.0MPaH76H-420—H76W-420P8H76W-420P3—H76W-420R8H76W-420R3ANSIB16.5Class150H76H-A1C—H76W-A1P8H76W-A1P3—H76W-A1R8H76W-A1R3Class300H76H-A3—H76W-A3P8H76W-A3P3—H76W-A3R8H76W-A3R3Class600H76H-A6—H76W-A6P8H76W-A6P3—H76W-A6R8H76W-A6R3Class900H76H-A9—H76W-A9P8H76W-A9P3—H76W-A9R8H76W-A9R3Class1500H76H-A15—H76W-A15P8H76W-A15P3—H76W-A15R8H76W-A15R3Class2500H76W-A25—H76W-A25P8H76W-A25P3—H76W-A25R8H76W-A25R3主要

零件

材料阀体WCB(A105)ZG1Cr18Ni9TiCF8(304)CF3(304L)ZG1Cr18Ni12Mo2Ti0Cr17Ni1Mo200Cr17Ni14Mo2阀体CF8CF8CF8CF3CF8MCF8MCF3M阀轴2Cr131Cr18Ni9Ti0Cr18Ni900Cr19Ni101Cr18Ni12Mo2Ti0Cr17Ni12Mo200Cr17Ni14Mo2弹簧0Cr18Ni90Cr18Ni90Cr18Ni900Cr19Ni100Cr17Ni12Mo20Cr17Ni12Mo200Cr17Ni14Mo2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。H76系列对夹双瓣旋启式止回阀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L1PN1.0MPa406096464121104M161505060109565121254M161506567129736531454M161558073144888041608M161601007316410810261808M161651258619413212782108M1618015098220160152132408M20205200127275210203242958M202352501463302662543735012M202553001813803103055040012M202903501844403553507646016M2029540019148240540011051516M2431045020354245545013556520M2432550021959750550015862020M2434560022269860560032072520M2735570030581170069538084024M2744080030591880079656095024M304509003681018903898640105028M305201000432112410551050900116028M3359012005241340120512001400138032M36695H76系列对夹双瓣旋启式止回阀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L1PN1.6MPa406096464121104M161505060109565121254M161506567129736531454M161558073144888041608M161601007316410810261808M161651258619413212782108M1618015098220160152132408M202052001272752102032429512M202352501463322662543735012M242553001813873103055040012M242903501844473553507646016M2429540019149840540011051516M2731045020355845545013556520M2733050021961850550015862020M3034560022273260560032072520M3337070030580270069538084024M3338080030591280079656095024M364709003681012903898640105028M364751000432112410551050900117028M3954512005241340120512001400139032M45620PN2.5MPa406096464121104M161505060109565121254M161506567129736531454M161558073144888041608M161601007316810810261908M201801258619613212782208M2420515098224160152142508M242202001272842102032731012M242552501463412662544237012M272853001814013103055443016M273253501844583553508649016M3034040019151540540012055016M3336045020356545545014860020M3337550021962250550016566020M3339560022273260560034077020M3641070030583170069540087524M3950080030594280079658099024M455209003681040903898660109028M455901000432115510551050960121028M5267512005241365120512001440142032M52790H76系列对夹双瓣旋启式止回阀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)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L1PN4.0

MPa406093484131104M161505060109585131254M161506567129736541458M161608073144888061608M161701007316810810281908M2018012586196132127132208M2420515098224160152162508M242202001272912102032832012M272702501463532662544938512M303003001814183103057645016M3034535022247535535011451016M3340040023254740540019058516M3642545026457245545020061020M3647050029262650550026067020M3950560031874560860040479520M45575PN6.4

MPa4060104484141254M201705060114585141354M201706567138736551608M201808073148888071708M20190100179174108102102008M24210125125211132127162408M27250150136248162152202808M302902001653102122003834512M333352502133622662506240012M3339530022942231030510046016M3342035027348735535016052516M3648040030554140540026058516M39525PN10.0

MPa4060104484141254M201905060120585151454M241856567144736571708M2419580731548880101808M2420510079181108102122108M27225125105218132127192508M302651501362581621522529012M303052001653242122005636012M333552502133922662509443012M3642530022945631230514250016M3946535027351035535023056016M4553540030557040540036662016M45585H76美标系列对夹双瓣旋启式止回阀主要尺寸及重量压力级口径尺寸重量

(kg)配和法兰(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L1inmmRFRJClass

150PN

2.0MPa4060844641298.541/2M141451552506010356512120.545/8M1614515521/2656712273653139.545/8M161501653807313588804152.545/8M161601754100731731081026190.565/8M161701855125861951321278216.083/4M2019020561509822016015213241.583/4M20205220820012727721020325298.583/4M202402551025014633726625439362.0127/8M242702851230018140731030554432.0127/8M243103251435018444835535080476.0121M2732534016400191512405400117540.0161M2734035518450203547455450138578.01611/8M3036538020500219604505500163635.02011/8M3038540024600222715605600331749.52011/4M334054202870305773700700380795.5403/4M20455—30750305824750746425846.0443/4M20455—32800305878800796560900.0483/4M20460—369003689839108986401009.5447/8M24540—4210504321142105510509601171.5481M27625—48120052413021205120014001335.04411/8M30740—Class

300PN

5.0MPa40609448413114.543/4M201602506011058513127.085/8M1616017521/2656712873654149.083/4M201751953807314788806168.583/4M201902104100731791081028200.