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對(duì)夾式止回閥

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產(chǎn)品名稱：對(duì)夾式止回閥產(chǎn)品型號(hào)：H71H系列產(chǎn)品特點(diǎn)：  對(duì)夾式止回閥詳細(xì)資料：產(chǎn)品型號(hào)：H71產(chǎn)品名稱：H71H系列對(duì)夾式止回閥二、流體力學(xué)性能：H71H系列對(duì)夾式止回閥的體積流量與壓力降關(guān)系：水的當(dāng)量體積流量Vw與實(shí)際流體的體積流量v按下式換算：
式中：Vw一水的當(dāng)量體積流量．l／s;
P一流體密度，kg／m3v一實(shí)際流體的體積流量，I／s;
v一實(shí)際流體的體積流量，I／s。    三、流體力學(xué)性能：H71H系列對(duì)夾式止回閥的流體阻力系數(shù)、流量系數(shù)及開(kāi)啟壓力：公稱通徑閥門全開(kāi)啟時(shí)的流體阻力系數(shù)常溫下閥門全開(kāi)啟時(shí)的水講E量系數(shù)流體的流向DNNPSKv(m3=／h)CV(U.S)CV(U.K)↑↓→開(kāi)啟壓力近似值KPa151/26.42.63.02.5322.5203/45.16.47.56.3322.52544.112.614.812.3322.53211/44.119.723.119.3322.54011/23.829.563.928.9322.55023.554.699.963.5322.56521/23.585.415083.7322.58033.2128286125322.510042.8244286249322.512552.9375439368312.215063.1522611512312.220083.29151070897312.2 四、H71H系列對(duì)夾式止回閥的型號(hào)、材料及主要參數(shù)：配管法蘭公稱壓力常規(guī)產(chǎn)品型號(hào)JB/T74-90
GB9112-9124、HG20592-20614PN1.0MPaH71H-10CH71W10PH71W10P8H71W10P3H71W10RH71W10R8H71W10R3PN1.6MPaH71H-16CH71H-16PH71H-16P8H71H-16P3H71H-16RH71H-16R8H71H-16R3PN2.5MPaH71H-25H71H-25PH71H-25P8H71H-25P3H71H-25RH71H-25R8H71H-25R3PN4.0MPaH71H-40H71H-40PH71H-40P8H71H-40P3H71H-40RH71H-40R8H71H-40R3PN6.3MPaH71H-63H71H-63PH71H-63P8H71H-63P3H71H-63RH71H-63R8H71H-63R3PN10.0MPaH71H-100H71H-100PH71H-100P8H71H-100P3H71H-100RH71H-100R8H71H-100R3PN16.0MPaH71H-160H71H-160PH71H-160P8H71H-160P3H71H-160RH71H-160R8H71H-160R3CB/T9112-9124、HG20615-20635、SH3406PN2.0MPaH71H-20C-H71H-20P8H71H-20P3-H71H-20R8H71H-20R3PN5.0MPaH71H-50-H71H-50P8H71H-50P3-H71H-50R8H71H-50R3PN11.0MPaH71H-110-H71H-110P8H71H-110P3-H71H-110R8H71H-110R3PN15.0MPaH71H-150-H71H-150P8H71H-150P3-H71H-150R8H71H-150R3ANSIB16.5Class150H71H-A1C-H71H-A1CP8H71H-A1P3-H71H-A1R8H71H-A1R3Class300H71H-A3-H71H-A3P8H71H-A3P3-H71H-A3R8H71H-A3R3Class600H71H-A6-H71H-A6P8H71H-A6P3-H71H-A6R8H71H-A6R3Class900H71H-A9-H71H-A9P8H71H-A9P3-H71H-A9R8H71H-A9R3主要
零件
材料閥體WCB(A105)ZG1Cr18Ni9TiCF8(304)CF3(304L)ZG1Cr18Ni12Mo2TiCF8M(316)CF3M(316L)閥瓣2Cr131Cr18Ni9Ti0Cr18Ni900Cr19Ni101Cr18Ni12TMo2i00Cr17Ni12Mo200Cr17Ni14Mo2壓圈2Cr131Cr18Ni9Ti0Cr18Ni900Cr19Ni101Cr18Ni12TMo2i00Cr17Ni12Mo200Cr17Ni14Mo2彈簧0Cr18Ni90Cr18Ni90Cr18Ni900Cr19Ni101Cr18Ni12TMo2i00Cr17Ni12Mo200Cr17Ni14Mo2適用工況適月介質(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)屎素等腐
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(duì)夾式止回閥的型號(hào)編制、主要零件材料及適用工況，其他要求及其型號(hào)編制參見(jiàn)對(duì)夾式止回閥型號(hào)編制方法。五、H71H系列對(duì)夾式止回閥的主要尺寸及重量：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)LDD2D3D4D5螺栓孔中心
圓直徑Dl螺栓
數(shù)量螺栓直徑d螺栓
長(zhǎng)度LlPN1.0MPa
PN1.6MPa151652152431400.12654M1275201962193040500.24754M1290252270243647580.34854M1290322883314656680.531004M161004031.593395566780.801104M16105 5040108486578901.21254M16125 65461286280951101.81454M16130805014276961101252.21608M1613510065162951151351503.41808M1615012590192110125132-9.02108M16180150106218127150158-142408M20210PN1.0MPa200140273165200208-242958M20240PN1.6MPa200140273165200208-2429512M20240PN2.5MPa151652152431400.12654M1280201962193040500.24754M1290252272243647580.34854M1290322883314656680.531004M161104031.593395566780.801104M161155040108486578901.21254M1612565461286280951101.81458M16135805014276961101282.21608M1614510060168951151351503.81908M2016012590194110125132-9.22208M24205150106224127150158-152508M24225200140284165200208-2631012M24260PN4.0MPa151652152431400.12654M1280201962193040500.24754M1290252272243647580.34854M1290322883314656680.531004M161104031.593395566780.801104M161155040108486578901.21254M1612565461286280951101.81458M16135805014276961101282.21608M1614510060168951151351503.81908M2016012590194110125132-9.22208M24205150106224127150158-152508M24225一、產(chǎn)品[H71H系列對(duì)夾式止回閥]的詳細(xì)資料：

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