对夹式止回阀

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H71单瓣对夹升降式止回阀

H71单瓣对夹升降式止回阀

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概述

H71单瓣对夹升降式止回阀由阀体、阀瓣、弹簧等组成,对夹单瓣式止回阀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。对夹单瓣式材质有不锈钢、铸钢。

特点

  • 结构长度短;

  • 体积小,重量轻;

  • 流道通畅、流体阻力小;

  • 动作灵敏、密封性能好;

  • 阀瓣行程短、关阀冲击力小;

  • 阀瓣关闭快速,水锤压力小;

  • 水平管道或垂直管道均可使用;

  • 整体结构、简单紧凑、造型美观;

  • 使用寿命长、可靠性高。

H71单瓣对夹升降式止回阀外形尺寸

型号、材料及主要参数

配管法兰公称压力常规产品型号
JB/T74-90 GB9112- 9124、HG20592- 20614PN1.0MPaH71H-10CH71W10PH71W10P8H71W10P3H71W10RH71W10R8H71W10R3
PN1.6MPaH71H-16CH71H-16PH71H-16P8H71H-16P3H71H-16RH71H-16R8H71H-16R3
PN2.5MPaH71H-25H71H-25PH71H-25P8H71H-25P3H71H-25RH71H-25R8H71H-25R3
PN4.0MPaH71H-40H71H-40PH71H-40P8H71H-40P3H71H-40RH71H-40R8H71H-40R3
PN6.3MPaH71H-63H71H-63PH71H-63P8H71H-63P3H71H-63RH71H-63R8H71H-63R3
PN10.0MPaH71H-100H71H-100PH71H-100P8H71H-100P3H71H-100RH71H-100R8H71H-100R3
PN16.0MPaH71H-160H71H-160PH71H-160P8H71H-160P3H71H-160RH71H-160R8H71H-160R3
CB/T9112- 9124、HG20615- 20635、SH3406PN2.0MPaH71H-20C-H71H-20P8H71H-20P3-H71H-20R8H71H-20R3
PN5.0MPaH71H-50-H71H-50P8H71H-50P3-H71H-50R8H71H-50R3
PN11.0MPaH71H-110-H71H-110P8H71H-110P3-H71H-110R8H71H-110R3
PN15.0MPaH71H-150-H71H-150P8H71H-150P3-H71H-150R8H71H-150R3
ANSIB16.5Class150H71H-A1C-H71H-A1CP8H71H-A1P3-H71H-A1R8H71H-A1R3
Class300H71H-A3-H71H-A3P8H71H-A3P3-H71H-A3R8H71H-A3R3
Class600H71H-A6-H71H-A6P8H71H-A6P3-H71H-A6R8H71H-A6R3
Class900H71H-A9-H71H-A9P8H71H-A9P3-H71H-A9R8H71H-A9R3
主 要 零 件 材 料阀体WCB(A105)ZG1Cr18Ni9TiCF8(304)CF3(304L)ZG1Cr18Ni 12Mo2TiCF8M(316)CF3M(316L)
阀瓣2Cr131Cr18Ni9Ti0Cr18Ni900Cr19Ni101Cr18Ni 12TMo2i00Cr17Ni 12Mo200Cr17Ni 14Mo2
压圈2Cr131Cr18Ni9Ti0Cr18Ni900Cr19Ni101Cr18Ni1 2TMo2i00Cr17Ni 12Mo200Cr17Ni 14Mo2
弹簧0Cr18Ni90Cr18Ni90Cr18Ni900Cr19Ni101Cr18Ni12 TMo2i00Cr17Ni 12Mo200Cr17Ni 14Mo2
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(℃)-29~425-196~540-196~425-196~540-196~455

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式止回阀型号编制方法

H71对夹升降式止回阀 主要尺寸及重量

公称压力 PN MPa公称 通径 DN mm尺寸(mm)重量 (Kg)配管法兰(供参考)
LDD2D3D4D5螺栓孔中心 圆直径Dl螺栓 数量螺栓直径d螺栓 长度Ll
PN1.0MPa
PN1.6MPa
151652152431400.12654M1275
201962193040500.24754M1290
252270243647580.34854M1290
322883314656680.531004M16100
4031.593395566780.801104M16105
5040108486578901.21254M16125
65461286280951101.81454M16130
805014276961101252.21608M16135
10065162951151351503.41808M16150
12590192110125132-9.02108M16180
150106218127150158-142408M20210
PN1.0MPa200140273165200208-242958M20240
PN1.6MPa200140273165200208-2429512M20240
PN2.5MPa151652152431400.12654M1280
201962193040500.24754M1290
252272243647580.34854M1290
322883314656680.531004M16110
4031.593395566780.801104M16115
5040108486578901.21254M16125
65461286280951101.81458M16135
805014276961101282.21608M16145
10060168951151351503.81908M20160
12590194110125132-9.22208M24205
150106224127150158-152508M24225
200140284165200208-2631012M24260
PN4.0MPa151652152431400.12654M1280
201962193040500.24754M1290
252272243647580.34854M1290
322883314656680.531004M16110
4031.593395566780.801104M16115
5040108486578901.21254M16125
65461286280951101.81458M16135
805014276961101282.21608M16145
10060168951151351503.81908M20160
12590194110125132-9.22208M24205
150106224127150158-152508M24225
200140291165200208-2832012M27275

H71对夹升降式止回阀 主要尺寸及重量

公称压力 PN MPa公称通径 DN mm尺寸(mm)重量 (Kg)配管法兰(供参考)
LDD2D3D4螺栓孔中心圆直径D1螺栓 数量螺栓直径d螺栓 长度Ll
PN6.3MPa1525621525250.5754M12100
2031.5731930300.7904M16115
2535.5832436361.01004M16130
3240893143431.31104M20140
40451043952522.01254M20150
50561144862623.21354M20160
65631386275754.51608M20170
807114876909051708M20180
100801749511211272008M24200
125110211110125132132408M27245
150125248127150158222808M30270
2001603101652002084034512M33325
PN10.0MPa1525621525250.6754M12100
2031.5731930301.0904M16115
2535.5832436361.31004M16130
3240893143431.61104M20140
40451043952522.51254M20150
50561204862623.81454M24175
656314462757561708M24185
807115476909071808M24195
1008018195112112102108M27220
125110218110132132182508M30265
1501252581271581583029012M30285
2001603241652082085636012M33345
PN16.0MPa
(JB/T74-90)
1525581525250.6754M1670
2031.5691930300.9904M2085
2535.5792436361.31004M2090
3241923143431.71154M22100
40451003952522.21254M24110
50561424862625.61654M22115
65631626275757.51908M27130
807117676909092058M27140
1008020895112112142408M30155
125110247110132132272858M36195
1501252801271581583831812M36210
2001603561652082087640012M42260

H71对夹升降式止回阀主要尺寸及重量

公称压力 PN MPa公称通径 DN mm尺寸(mm)重量 (Kg)配管法兰(供参考)
LDD2D3D4螺栓孔中心 圆直径D1螺栓 数量螺栓直径d螺栓长度L1
PN16.0MPa
(GB/T9112-9124)
(HG20592-20635)
1525621525250.6754M12115
2031.5731930301.0904M16135
2535.5832436361.31004M16145
3240893143431.61104M20160
40451043952522.51254M20170
50561204862623.81454M24195
656314462757561708M24210
807115476909071808M24225
1008018195112112102108M27250
125110218110125132182508M30295
1501252581271501583029012M30325
2001603251652002085836012M33375

注:不同的法兰标准其尺寸有一定的差异,故配管法兰的螺栓直径d、螺栓长度L,等尺寸仅供参考。本表中配管法兰尺寸主要以JB/T74—90标准系列2为依据。
主要尺寸及重量

压力级公称通径尺寸(mm)重量 (Kg)配管法兰(供参考)
NPSDNLDD2D3D4螺栓孔心 圆直径D1螺栓 数量螺栓直径d螺栓长度L1
inmmRFRJ
Class150 PN2.0MPa1/21525461525250.2860.541/2M1490-
3/42031.5561930300.427041/2M14100-
12535.5652436360.5679.541/2M14105120
11/43240743143430.758941/2M14115130
11/24045843952521.398.541/2M14120135
250561034862622.1120.545/8M16140155
21/265631226275752.8139.545/8M16155170
380711357690903.6152.545/8M16165180
410080173951121124.8190.585/8M16175190
Class300 PN5.0MPa512511019511012513212216.083/4M20210225
615012522012715015817241.583/4M20230245
820016027716520020829298.583/4M20270285
1/215255215250250.366.541/2M1495105
3/42031.5651930300.4682.545/8M16110125
12535.5722436360.68945/8M16115130
11/43240813143430.898.545/8M16125140
11/24045943952521.5114.543/4M20140155
250561104862622.4127.085/8M16145170

H71对夹升降式止回阀 主要尺寸及重量

压力级公称通径尺寸(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L1
inmmRFRJ
Class300 PN5.0MPa11/265631286275753.0149.083/4M20170190
380711477690904.0168.583/4M20185205
410080179951121125.5200.083/4M20200220
512511021411012513213235.083/4M20235255
615012524912715015822270.0123/4M20255275
820016030516520020836330.0127/8M24305325
Class600 PN11.0MPa1/21525521525250.466.541/2M1495105
3/42031.5651930300.882.545/8M16110125
12535.5722436361.089.045/8M16115130
11/43240813143431.398.545/8M16125140
11/24045943952521.8114.543/4M20145160
250561104862622.8127.085/8M16155170
21/265631286275754149.083/4M20175195
380711477690906168.583/4M20190210
4100801919511211211216.087/8M24220240
512511023911012513225267.081M27265285
615012526412715015832292.0121M27290310
820016031816520020852349.01211/8M30345365
Class900 PN15.0MPa1/21525621525250.682.543/4M20125140
3/42031.5691930300.989.043/4M20135150
12535.5772436361.2101.547/8M24155170
11/43240873143431.5111.047/8M24160175
11/24045973952522.0124.041M27175190
250561404862625.5165.087/8M24195210
21/265631626275757.5190.581M27215230
380711657690908190.587/8M24210225
4100802049511211214235.0811/8M30245260
512511024511012513227279.5811/4M33290310
615012528612715015841317.51211/8M30310325
820016035616520020876393.51213/8M36375390

注:l、不同的法兰标准其尺寸有一定的差异故配管法兰的螺栓直径d、螺桂长度Ll等尺寸仅供参考。
2、RF表示突面法兰;RJ表示环连接面法兰。

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