对夹止回阀尺寸结构图

1、.对夹式止回阀 H71基本信息栏品名型号规格压力材质对夹式止回阀H71HDN50-600mmPN1.6-6.4mpa碳钢；不锈钢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，密封性能好。H71对夹止回阀结构图技术参数型号公称通径壳体密封工作温度适用温度H71H-16Q1.62.41.76235水、蒸气、油品等H71H-25Q2.53.752.75235H71W-25H300H71W-25P200硝酸等腐蚀性介质H71W-40H464.4300H71W-40P200

2、水、蒸气H71系列对夹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/T 7490、GB/T 91129124、HG 2059220614PN1.0MPaH71H-10CH71W-10PH71W-10P8H71W-10P3H71W-10RH71W-10R8H71W-10R3PN1.6MPaH71W-16CH71W-16PH71W-16P8H71W-16P3H71W-16RH71W-16R8H71W-16R3PN2.5MPaH71W-25H71W-25PH71W-25P8H71W-25P3H71W-25RH71W-25R8H71W-25R3PN4.0MPaH71W-40H71

3、W-40PH71W-40P8H71W-40P3H71W-40RH71W-40R8H71W-40R3PN6.3MPaH71W-63H71W-63PH71W-63P8H71W-63P3H71W-63RH71W-63R8H71W-63R3PN10.0MPaH71W-100H71W-100PH71W-100P8H71W-100P3H71W-100RH71W-100R8H71W-100R3PN16.0MPaH71W-160H71W-160PH71W-160P8H71W-160P3H71W-160RH71W-160R8H71W-160R3GB/T 91129124、HG 2061520635、SH 340

4、6PN2.0MPaH71H-20CH71W-20P8H71W-20P3H71W-20R8H71W-20R3PN5.0MPaH71H-50H71W-50P8H71W-50P3H71W-50R8H71W-50R3PN11.0MPaH71H-110H71W-110P8H71W-110P3H71W-110R8H71W-110R3PN15.0MPaH71H-150H71W-150P8H71W-150P3H71W-150R8H71W-150R3ANSI B 16.5Class150H71H-A1CH71W-A1P8H71W-A1P3H71W-A1R8H71W-A1R3Class300H71H-A3H71W

5、-A3P8H71W-A3P3H71W-A3R8H71W-A3R3Class600H71H-A6H71W-A6P8H71W-A6P3H71W-A6R8H71W-A6R3Class900H71H-A9H71W-A9P8H71W-A9P3H71W-A9R8H71W-A9R3主要零件材料阀体WCB(A105)ZG1Cr18Ni9TiCF8(304)CF3(304L)ZG1Cr18Ni12Mo2TiCF8M(316)CF3M(316L)阀瓣2Cr131Cr18Ni9Ti0Cr18Ni900Cr19Ni101Cr18Ni12Mo2Ti0Cr17Ni12Mo200Cr17Ni14Mo2压圈2Cr131Cr1

6、8Ni9Ti0Cr18Ni900Cr19Ni101Cr18Ni12Mo2Ti0Cr17Ni12Mo200Cr17Ni14Mo2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()-29425-196540-196425-196540-196455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。.famenwz./"p=133公称

7、压力PNMPa公称通径DNmm尺寸(mm)重量(kg)配管法兰(供参考)LDD3D2D4螺栓孔中心圆直径D1螺栓数量螺栓直径d螺栓长度L1PN1.0MPaPN1.6MPa(长系列)1525521544250.12654M12752031.5621952300.24754M12902535.5722460360.34854M12903238833172430.531004M161004040933974520.801104M1610550441074898621.21254M16125656212463117752.21454M16130806513878128903.11608M1613510

8、06816498/1125.71808M1615012586188123/132102108M16180150100219148/158142408M20210 200110270198/208242958M20240 250160332248/208353508M20260PN2.5MPa(长系列)1525521544250.12654M12802031.5621952300.24754M12902535.5722460360.34854M12903240833172430.531004M161104045933974520.801104M1611550561094898621.21254M

9、16125656312963117752.21458M16135807114478128903.11608M161451008016898/1127.01908M20160125110196123/132122208M24205150125224148/158152508M24225200160284198/2082631012M24260PN4.0MPa(长系列)15/521544250.12654M128020/621952300.24754M129025/722460360.34854M129032/833172430.531004M1611040/933974520.801104M16

10、11550/1094898621.21254M1612565/12962117752.21458M161358011608M16145100/16895/11291908M20160125/196110/132142208M24205150/224127/158182508M24225200/291165/2082832012M27275.famenwz./"p=133H71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)重量(kg)配管法兰(供参考)NPSDNLDD2D3D4螺栓孔中心圆直径D1螺栓数量螺栓直径d螺栓长度L1inmmClass1

11、50PN2.0MPa1/21516461525250.2860.541/2M14753/42019561930300.427041/2M149012522652436360.5679.541/2M149011/43228743143430.758941/2M1410011/24031.5843952521.398.541/2M14105250401034862622.1120.545/8M1612521/265461226275752.8139.545/8M16130380501357690903.6152.545/8M16135410060173951121124.8190.585/8M16

12、15051259019511012513212216.083/4M20180615010622012715015817241.583/4M20210820014027716520020829298.583/4M20240H71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)重量 (kg)配管法兰(供参考)NPSDNLDD2D3D4螺栓孔中心 圆直径D1螺栓 数量螺栓直径d螺栓长 度L1inmmRFRJCLass 150PN 2.0MPa (长系列)1/21525461525250.2860.541/2M14903/42031.5561930300.427041/2M14100125

13、35.5652436360.5679.541/2M1410512011/43240743143430.758941/2M1411513011/24045843952521.398.541/2M14120135250561034862622.1120.545/8M1614015521/265631226275752.8139.545/8M16155170380711357690903.6152.545/8M16165180410080173951121124.8190.585/8M16175190512511019511012513212216.083/4M2021022561501252201

14、2715015817241.583/4M20230245820016027716520020829298.583/4M20270285CLass300PN5.0MPa1/21525521525250.366.541/2M14951053/42031.5651930300.4682.545/8M1611012512535.5722436360.68945/8M1611513011/43240813143430.898.545/8M1612514011/24045943952521.5114.543/4M20140155250561104862622.4127.085/8M16145170止回阀常见型号：对夹升降式止回阀：H71X、H71H；对夹蝶