對夾止回閥尺寸結(jié)構(gòu)圖

1、對夾式止回閥 H71基本信息欄 品名型號規(guī)格壓力材質(zhì)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(tǒng)，防止介質(zhì)倒流，具有結(jié)構(gòu)短、體積小、質(zhì)量輕；閥瓣關(guān)閉快速，水錘壓力?。涣鞯劳〞?，流體阻力小；動作靈敏，密封性能好。 H71對夾止回閥結(jié)構(gòu)圖技術(shù)參數(shù)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(zhì)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(shù)配管法蘭公稱壓力常規(guī)產(chǎn)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(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()-29425-196540-196425-196540-196455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(shù)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(biāo)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(shù)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(biāo)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(shù)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