对夹式止回阀详细结构尺寸图 H76型

wordword/wordH76对夹式止回阀根本信息栏对夹双瓣止回阀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、阀杆与弹簧等零件组成，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试验压力强度试验6密封试验适用介质水、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、材料与主要参数配管法兰公称压力常规产品型号/T74

~90

GB/T9112

~9124

HG20592

~20614H76H-10CH76W-10PH76W-10P8H76W-10P3H76W-10RH76W-10R8H76W-10R3H76H-16CH76W-16PH76W-16P8H76W-16P3H76W-16RH76W-16R8H76W-16R3H76H-25H76W-25PH76W-25P8H76W-25P3H76W-25RH76W-25R8H76W-25R3H76H-40H76W-40PH76W-40P8H76W-40P3H76W-40RH76W-40R8H76W-40R3H76H-63H76W-63PH76W-63P8H76W-63P3H76W-63RH76W-63R8H76W-63R3H76H-100H76W-100PH76W-100P8H76W-100P3H76W-100RH76W-100R8H76W-100R3H76H-160H76W-160PH76W-160P8H76W-160P3H76W-160RH76W-160R8H76W-160R3H76H-200H76W-200PH76W-200P8H76W-200P3H76W-200RH76W-200R8H76W-200R3H76H-250H76W-250PH76W-250P8H76W-250P3H76W-250RH76W-250R8H76W-250R3GB/T9112

~9124

HG20615

~20635

SH3406H76H-20C—H76W-20P8H76W-20P3—H76W-20R8H76W-20R3H76H-50—H76W-50P8H76W-50P3—H76W-50R8H76W-50R3H76H-110—H76W-110P8H76W-110P3—H76W-110R8H76W-110R3H76H-150—H76W-150P8H76W-150P3—H76W-150R8H76W-150R3H76H-260—H76W-260P8H76W-260P3—H76W-260R8H76W-260R3H76H-420—H76W-420P8H76W-420P3—H76W-420R8H76W-420R3Class150H76H-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、主要零件材料与适用工况，其他要求与其型号编制参见对夹式止回阀型号编制方法。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L1406096464121104M161505060109565121254M161506567129736531454M161558073144888041608M161601007316410810261808M161651258619413212782108M1618015098220160152132408M20205200127275210203242958M202352501463302662543735012M202553001813803103055040012M202903501844403553507646016M2029540019148240540011051516M2431045020354245545013556520M2432550021959750550015862020M2434560022269860560032072520M2735570030581170069538084024M2744080030591880079656095024M304509003681018903898640105028M305201000432112410551050900116028M3359012005241340120512001400138032M36695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L1406096464121104M161505060109565121254M161506567129736531454M161558073144888041608M161601007316410810261808M161651258619413212782108M1618015098220160152132408M202052001272752102032429512M202352501463322662543735012M242553001813873103055040012M242903501844473553507646016M2429540019149840540011051516M2731045020355845545013556520M2733050021961850550015862020M3034560022273260560032072520M3337070030580270069538084024M3338080030591280079656095024M364709003681012903898640105028M364751000432112410551050900117028M3954512005241340120512001400139032M45620406096464121104M161505060109565121254M161506567129736531454M161558073144888041608M161601007316810810261908M201801258619613212782208M2420515098224160152142508M242202001272842102032731012M242552501463412662544237012M272853001814013103055443016M273253501844583553508649016M3034040019151540540012055016M3336045020356545545014860020M3337550021962250550016566020M3339560022273260560034077020M3641070030583170069540087524M3950080030594280079658099024M455209003681040903898660109028M455901000432115510551050960121028M5267512005241365120512001440142032M52790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与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L1inmmRFRJ4060844641241/2M14145155250601035651245/8M1614515521/265671227365345/8M16150165380731358880445/8M16160175410073173108102665/8M16170185512586195132127883/4M201902056150982201601521383/4M2020522082001272772102032583/4M202402551025014633726625439127/8M242702851230018140731030554127/8M243103251435018444835535080121M2732534016400191512405400117161M27340355184502035474554501381611/8M30365380205002196045055001632011/8M30385400246002227156056003312011/4M334054202870305773700700380403/4M20455—30750305824750746425443/4M20455—32800305878800796560483/4M20460—36900368983910898640447/8M24540—421050432114210551050960481M27625—48120052413021205120014004411/8M30740—4060944841343/4M20160250601105851385/8M1616017521/265671287365483/4M20175195380731478880683/4M201902104100731791081028