對夾式止回閥詳細(xì)結(jié)構(gòu)尺寸圖-H76型

H76對夾式止回閥根本信息欄品名型號規(guī)格壓力材質(zhì)對夾雙瓣止回閥H76WDN40-1200mm碳鋼；不銹鋼H76W、H76H型對夾雙瓣止回閥由閥體、蝶形雙閥瓣、閥桿及彈簧等零件組成，采用對夾和法蘭連接。由于蝶形雙瓣行程短，并且有彈簧加載，可顯著減少水錘現(xiàn)象。對夾雙瓣止回閥結(jié)構(gòu)圖技術(shù)參數(shù)公稱壓力PN(MPa)11.62.54試驗(yàn)壓力強(qiáng)度試驗(yàn)1.52.43.756密封試驗(yàn)1.11.762.754.4適用介質(zhì)水、蒸汽、油品、污水、酸堿類適用溫度橡膠密封面〔X〕-20℃~120℃合金鋼密封面〔H〕主體碳鋼-29℃~425℃H76系列對夾雙瓣旋啟式止回閥的型號、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

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

材料閥體WCB(A105)ZG1Cr18Ni9TiCF8(304)CF3(304L)ZG1Cr18Ni12Mo2Ti0Cr17Ni1Mo200Cr17Ni14Mo2閥體CF8CF8CF8CF3CF8MCF8MCF3M閥軸2Cr131Cr18Ni9Ti0Cr18Ni900Cr19Ni101Cr18Ni12Mo2Ti0Cr17Ni12Mo200Cr17Ni14Mo2彈簧0Cr18Ni90Cr18Ni90Cr18Ni900Cr19Ni100Cr17Ni12Mo20Cr17Ni12Mo200Cr17Ni14Mo2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。H76系列對夾雙瓣旋啟式止回閥主要尺寸及重量公稱壓力

PN

MPa公稱通徑

DN

mm尺寸(mm)重量

(kg)配管法蘭(供參考)LDD3D2螺栓孔中心

圓直徑D1螺栓數(shù)量螺栓直徑d螺栓長度L1PN1.0MPa406096464121104M161505060109565121254M161506567129736531454M161558073144888041608M161601007316410810261808M161651258619413212782108M1618015098220160152132408M20205200127275210203242958M202352501463302662543735012M202553001813803103055040012M202903501844403553507646016M2029540019148240540011051516M2431045020354245545013556520M2432550021959750550015862020M2434560022269860560032072520M2735570030581170069538084024M2744080030591880079656095024M304509003681018903898640105028M305201000432112410551050900116028M3359012005241340120512001400138032M36695H76系列對夾雙瓣旋啟式止回閥主要尺寸及重量公稱壓力

PN

MPa公稱通徑

DN

mm尺寸(mm)重量

(kg)配管法蘭(供參考)LDD3D2螺栓孔中心

圓直徑D1螺栓數(shù)量螺栓直徑d螺栓長度L1PN1.6MPa406096464121104M161505060109565121254M161506567129736531454M161558073144888041608M161601007316410810261808M161651258619413212782108M1618015098220160152132408M202052001272752102032429512M202352501463322662543735012M242553001813873103055040012M242903501844473553507646016M2429540019149840540011051516M2731045020355845545013556520M2733050021961850550015862020M3034560022273260560032072520M3337070030580270069538084024M3338080030591280079656095024M364709003681012903898640105028M364751000432112410551050900117028M3954512005241340120512001400139032M45620PN2.5MPa406096464121104M161505060109565121254M161506567129736531454M161558073144888041608M161601007316810810261908M201801258619613212782208M2420515098224160152142508M242202001272842102032731012M242552501463412662544237012M272853001814013103055443016M273253501844583553508649016M3034040019151540540012055016M3336045020356545545014860020M3337550021962250550016566020M3339560022273260560034077020M3641070030583170069540087524M3950080030594280079658099024M455209003681040903898660109028M455901000432115510551050960121028M5267512005241365120512001440142032M52790H76系列對夾雙瓣旋啟式止回閥主要尺寸及重量公稱壓力

PN

MPa公稱通徑

DN

mm尺寸(mm)重量

(kg)配管法蘭(供參考)配管法蘭(供參考)LDD3D2螺栓孔

中心圓

直徑D1螺栓數(shù)量螺栓直徑d螺栓長度L1PN4.0

MPa406093484131104M161505060109585131254M161506567129736541458M161608073144888061608M161701007316810810281908M2018012586196132127132208M2420515098224160152162508M242202001272912102032832012M272702501463532662544938512M303003001814183103057645016M3034535022247535535011451016M3340040023254740540019058516M3642545026457245545020061020M3647050029262650550026067020M3950560031874560860040479520M45575PN6.4

MPa4060104484141254M201705060114585141354M201706567138736551608M201808073148888071708M20190100179174108102102008M24210125125211132127162408M27250150136248162152202808M302902001653102122003834512M333352502133622662506240012M3339530022942231030510046016M3342035027348735535016052516M3648040030554140540026058516M39525PN10.0

MPa4060104484141254M201905060120585151454M241856567144736571708M2419580731548880101808M2420510079181108102122108M27225125105218132127192508M302651501362581621522529012M303052001653242122005636012M333552502133922662509443012M3642530022945631230514250016M3946535027351035535023056016M4553540030557040540036662016M45585H76美標(biāo)系列對夾雙瓣旋啟式止回閥主要尺寸及重量壓力級口徑尺寸重量

(kg)配和法蘭(供參考)NPSDNLDD3D2螺栓孔中心

圓直徑D1螺栓

數(shù)量螺栓直徑d螺栓長度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.