1、對夾式止回閥 H71基本信息欄 品名型號規格壓力材質對夾式止回閥H71HDN50-600mm碳鋼；不銹鋼H71H型升降對夾式止回閥由閥體、閥瓣、彈簧等組成，水平或垂直安裝于管路系統，防止介質倒流，具有結構短、體積小、質量輕；閥瓣關閉快速，水錘壓力小；流道通暢，流體阻力小；動作靈敏，密封性能好。 H71對夾止回閥結構圖技術參數型號公稱通徑殼體密封工作溫度適用溫度H71H-16Q1.62.41.76235水、蒸氣、油品等H71H-25Q2.53.752.75235H71W-25H300H71W-25P200硝酸等腐蝕性介質H71W-40H464.4300H71W-40P200水、蒸氣H71系列對夾

2、升降式止回閥的型號、材料及主要參數配管法蘭公稱壓力常規產品型號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-40H71W-40PH71W-4

3、0P8H71W-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 3406PN2.0MPaH7

4、1H-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-A3P8H71W-A

5、3P3H71W-A3R8H71W-A3R3Class600H71H-A6H71W-A6P8H71W-A6P3H71W-A6R8H71W-A6R3Class900H71H-A9H71W-A9P8H71W-A9P3H71W-A9R8H71W-A9R3主要零件材料閥體WCB(A105)ZG1Cr18Ni9TiCF8(304)CF3(304L)ZG1Cr18Ni12Mo2TiCF8M(316)CF3M(316L)閥瓣2Cr131Cr18Ni9Ti0Cr18Ni900Cr19Ni101Cr18Ni12Mo2Ti0Cr17Ni12Mo200Cr17Ni14Mo2壓圈2Cr131Cr18Ni9Ti0Cr18

6、Ni900Cr19Ni101Cr18Ni12Mo2Ti0Cr17Ni12Mo200Cr17Ni14Mo2彈簧0Cr18Ni90Cr18Ni90Cr18Ni900Cr19Ni100Cr17Ni12Mo20Cr17Ni12Mo200Cr17Ni14Mo2適用工況適用介質水、蒸汽、油品等硝酸等腐蝕性介質強氧化性介質醋酸等腐蝕性介質尿素等腐蝕性介質適用溫度()-29425-196540-196425-196540-196455注：本表為常規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止回閥型號編制方法。公稱壓力PNMPa公稱通徑DNmm尺寸(mm)重量(kg)配管法蘭(

7、供參考)LDD3D2D4螺栓孔中心圓直徑D1螺栓數量螺栓直徑d螺栓長度L1PN1.0MPaPN1.6MPa(長系列)1525521544250.12654M12752031.5621952300.24754M12902535.5722460360.34854M12903238833172430.531004M161004040933974520.801104M1610550441074898621.21254M16125656212463117752.21454M16130806513878128903.11608M161351006816498/1125.71808M161501258618

8、8123/132102108M16180150100219148/158142408M20210 200110270198/208242958M20240 250160332248/208353508M20260PN2.5MPa(長系列)1525521544250.12654M12802031.5621952300.24754M12902535.5722460360.34854M12903240833172430.531004M161104045933974520.801104M1611550561094898621.21254M16125656312963117752.21458M16135

9、807114478128903.11608M161451008016898/1127.01908M20160125110196123/132122208M24205150125224148/158152508M24225200160284198/2082631012M24260PN4.0MPa(長系列)15/521544250.12654M128020/621952300.24754M129025/722460360.34854M129032/833172430.531004M1611040/933974520.801104M1611550/1094898621.21254M1612565/1

10、2962117752.21458M161358011608M16145100/16895/11291908M20160125/196110/132142208M24205150/224127/158182508M24225200/291165/2082832012M27275H71美標系列對夾升降式止回閥主要尺寸及重量壓力級口徑尺寸(mm)重量(kg)配管法蘭(供參考)NPSDNLDD2D3D4螺栓孔中心圓直徑D1螺栓數量螺栓直徑d螺栓長度L1inmmClass150PN2.0MPa1/21516461525250.2860.541/2M14753/420195619

11、30300.427041/2M149012522652436360.5679.541/2M149011/43228743143430.758941/2M1410011/24031.5843952521.398.541/2M14105250401034862622.1120.545/8M1612521/265461226275752.8139.545/8M16130380501357690903.6152.545/8M16135410060173951121124.8190.585/8M1615051259019511012513212216.083/4M20180615010622012715

12、015817241.583/4M20210820014027716520020829298.583/4M20240H71美標系列對夾升降式止回閥主要尺寸及重量壓力級口徑尺寸(mm)重量 (kg)配管法蘭(供參考)NPSDNLDD2D3D4螺栓孔中心 圓直徑D1螺栓 數量螺栓直徑d螺栓長 度L1inmmRFRJCLass 150PN 2.0MPa (長系列)1/21525461525250.2860.541/2M14903/42031.5561930300.427041/2M1410012535.5652436360.5679.541/2M1410512011/43240743143430.75

13、8941/2M1411513011/24045843952521.398.541/2M14120135250561034862622.1120.545/8M1614015521/265631226275752.8139.545/8M16155170380711357690903.6152.545/8M16165180410080173951121124.8190.585/8M16175190512511019511012513212216.083/4M20210225615012522012715015817241.583/4M20230245820016027716520020829298.583/4M20270285CLass300PN5.0MPa1/21525521525250.366.541/2M14951053/42031.5651930300.4682.545/8M1611012512535.5722436360.68945/8M1611513011/43240813143430.898.545/8M1612514011/24045943952521.5114.543/4M20140155250561104862622.4127.085/8M16145170止回閥常見