对夹止回阀尺寸结构图

1、H71H型升降对夹式止回阀由阀体、阀瓣、弹簧等组成，水平或垂直安装于管路系统，防止介质倒流,具有结构短、体积小、质量轻；阀瓣关闭快速，水锤压力小；流道通畅，流体阻力小；动作灵敏，密封性壳体工作温度适用温度规格压力材质对夹式止回H71HDN50-600mmPN1.6-6.4mpa碳钢；不锈钢能好H71对夹止回阀结构图技术参数对夹式止回阀H71基本信息栏号通径H711.62.41.76及35水、蒸气、油品等H-16QH712.53.752.75及35H-25QH71M00W-25HH71及00硝酸等腐蚀性介质W-25PH71464.4M00W-40HH71W-41400c水、蒸气0PH71系列对夹

2、升降式止回阀的型号、材料及主要参数配管法兰公称压力常规产品型号JB/T74PN1.0MPaPN1.6MPaH71H-10CH71W-10P8H71W-10P3H71W-10RH71W-10R8H71W-10R3PH71W-16CH71W-16P8H71W-16P3H71W-16RH71W-16R8H71W-16R3PH71W-2590、GB/T9112PN2.5MPaH71W-25H71W-25P8H71W-25P3H71W-25RH71W-25R8H71W-25R3H71W-409124、HG20592PN4.0MPaH71W-40H71W-40P8H71W-40P3H71W-40RH71W

3、-40R8H71W-40R3H71W-6320614PN6.3MPaPN10.0MPaPN16.0MPaH71W-63H71W-63P8H71W-63P3H71W-63RH71W-63R8H71W-63R3H71W-100H71W-100P8H71W-100P3H71W-100RH71W-100R8H71W-100R3PH71W-160H71W-160P8H71W-160P3H71W-160RH71W-160R8H71W-160R3PGB/T9112PN2.0MPaH71H-20CH71W-20P8H71W-20P3H71W-20R8H71W-20R39124、PN5.0MPaH71H-50H

4、71W-50P8H71W-50P3H71W-50R8H71W-50R3HG20615PN11.0MPaH71H-110H71W-110P8H71W-110P3H71W-110R8H71W-110R320635、SH3406PN15.0MPaH71H-150H71W-150P8H71W-150P3H71W-150R8H71W-150R3Class150H71H-A1CH71W-A1P8H71W-A1P3H71W-A1R8H71W-A1R3ANSIBClass300H71H-A3H71W-A3P8H71W-A3P3H71W-A3R8H71W-A3R316.5Class600H71H-A6H71W-

5、A6P8H71W-A6P3H71W-A6R8H71W-A6R3主要零件Class900阀体H71H-A9H71W-A9P8H71W-A9P3H71W-A9R8H71W-A9R3WCB(A105)CF8(304)CF3(304L)CF8M(316)CF3M(316L)Ni9Ti12Mo2Ti材料阀瓣2Cr131Cr18Ni90Cr18Ni900Cr19Ni101Cr18Ni120Cr17Ni12Mo200Cr17Ni14M压圈2Cr131Cr18Ni9Ti0Cr18Ni9弹簧0Cr18Ni90Cr18Ni90Cr18Ni9适用适用介质水、蒸汽、油品等硝酸等腐蚀性介质工况适用温度(.C)-2942

6、5-196540Ti00Cr19Ni101Cr18Ni12Mo2Ti0Cr17Ni12Mo200Cr17Ni14Mo200Cr19Ni100Cr17Ni12Mo20Cr17Ni12Mo200Cr17Ni14Mo2强氧化性介质醋酸等腐蚀性介质尿素等腐蚀性介质-196-425-196-540-196-455Mo2Tio2公称压力PN重量尺寸(mm)螺栓孔配管法兰(供参考)公称通径DN(kg)MPamm中心圆螺栓直径LDD3D2D4螺栓数量螺栓长度L1直径D1d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止回阀型号编制方法。PN1.0MPaPN1.6MP

7、a(长系列PN2.5MPa(长系列1525521544250.12654M12752031.5621952300.24754M12902535.5722460360.34854M12903238833172430.531004M161004040933974520.801104M1610550441074898621.21254M16125656212463117752.21454M16130806513878128903.11608M161351006816498/1125.71808M1615012586188123/132102108M16180150100219148/15814240

8、8M20210200110270198/208242958M20240250160332248/208353508M202601525521544250.12654M12802031.5621952300.24754M12902535.722460360.34854M1290)53240833172430.531004M161104045933974520.801104M1611550561094898621.21254M16125656312963117752.21458M16135807114478128903.11608M161451008016898/1127.01908M201601

9、25110196123/132122208M24205150125224148/158152508M24225200160284198/2082631012M2426015/521544250.12654M128020/621952300.24754M129025/722460360.34854M129032/833172430.531004M1611040/933974520.801104M1611550/1094898621.21254M16125PN4.0MPa（长系列）65/12962117752.21458M161358011608M16145100/168

10、95/11291908M20160125/196110/132142208M24205150/224127/158182508M24225200/291165/2082832012M27275H71美标系列对夹升降式止回阀主要尺寸及重量重量配管法兰(供参考)螺栓螺栓直径d数量口径尺寸(mm)(kg)压力级螺栓孔中心NPSDNLDD2D3D4圆直径D11/215164615253/420195619301252265243611/4322874314311/24031.5843952Class250401034862150PN21/2654612262752.0MPa38050135769041

11、00601739511251259019511012561501062201271508200140277165200inmm70.2860.541/2M14590.427041/2M14090.5679.541/2M14010.758941/2M140011.398.541/2M140512.1120.545/8M162512.8139.545/8M163013.6152.545/8M163514.8190.585/8M1650112216.083/4M2080217241.583/4M2010229298.583/4M2040H71美标系列对夹升降式止回阀主要尺寸及重量压力级口径尺寸（mm

12、）重量（kg）配管法兰（供参考）2530364352627590112132158208NPSDNLDD2D3D4螺栓孔中心圆直径D1螺栓数量in螺栓直径mmdRF螺栓长度L1RJ1/21525461525250.2860.541/2M1490一3/42031.5561930300.427041/2M14100一12535.5652436360.5679.541/2M14105120CLass11/43240743143430.758941/2N2.0MPa11/24045843952521.398.541/2M14120135250561034862622.1120

13、.545/8M16140155（长系列）21/265631226275752.8139.545/8M16155170380711357690903.6152.545/8M16165180410080173951121124.8190.585/8M16175190512511019511012513212216.083/4M20210225615012522012715015817241.583/4M20230245820016027716520020829298.583/4M202702851/21525521525250.366.541/2M1495105CLass3/42031.5651930300.4682.545/8M16110125300PN12535.5722436360.68945/8M161151305.0MPa11/43240813143430.898.545/8M1612514011/24045943952521.5114.543/4M20140155250561104862622.4127.085/8M16145170止回阀常见型号：对夹升降