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對(duì)夾式止回閥

H71單瓣對(duì)夾升降式止回閥

H71單瓣對(duì)夾升降式止回閥該產(chǎn)品采用對(duì)夾式連接,結(jié)構(gòu)緊湊,閥瓣沿著中心定位作 升降運(yùn)動(dòng),由于閥瓣的關(guān)閉行程短,并有彈簧加載,關(guān)閉速度快,可顯著減少水錘現(xiàn)象。對(duì)夾升降式止回閥具有體積小、重量輕、動(dòng)作靈敏、密封可靠、安裝方便等特點(diǎn),特別適合于安裝空間受限制的場(chǎng)合采用,H71單瓣對(duì)夾升降式止回閥可適用于水、蒸氣、油品、硝酸、醋酸、強(qiáng)氧化性介質(zhì)等多種介質(zhì)。

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H71單瓣對(duì)夾升降式止回閥 介紹

特點(diǎn)

 

  • 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??;

  • 流道通暢,流體阻力?。粍?dòng)作靈敏,密封性能好

執(zhí)行標(biāo)準(zhǔn)

設(shè)計(jì)制造:JB/T8937
 結(jié)構(gòu)長(zhǎng)度:JB/T8937
 配管法蘭:JB/T74   
 試驗(yàn)與檢驗(yàn):JB/T9092-1999

材料及主要參數(shù)


配管法蘭公稱壓力常規(guī)產(chǎn)品型號(hào)
JB/T74-90
       GB9112- 9124、
       HG20592- 20614
PN1.0MPaH71H-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、
       SH3406
PN2.0MPaH71H-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
主要零件材料閥體WCB(A105)ZG1Cr18Ni9TiCF8(304)CF3(304L)ZG1Cr18Ni12Mo2TiCF8M(316)CF3M(316L)
閥瓣2Cr131Cr18Ni9Ti0Cr18Ni900Cr19Ni101Cr18Ni12TMo2i00Cr17Ni12Mo200Cr17Ni14Mo2
壓圈2Cr131Cr18Ni9Ti0Cr18Ni900Cr19Ni101Cr18Ni12TMo2i00Cr17Ni12Mo200Cr17Ni14Mo2
彈簧0Cr18Ni90Cr18Ni90Cr18Ni900Cr19Ni101Cr18Ni12TMo2i00Cr17Ni12Mo200Cr17Ni14Mo2
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(℃)-29~425-196~540-196~425-196~540-196~455
注:本表為常規(guī)對(duì)夾式止回閥的型號(hào)編制,主要零件材料及適用工況,其他要求及其型號(hào)編制參見對(duì)夾式止回閥型號(hào)編制方法


主要尺寸及重量


公稱壓力
       PN MPa
公稱通徑
       DN mm
尺寸(mm)重量
       (Kg)
配管法蘭(供參考)
LDD2D3D4D5螺栓孔中心
       圓直徑Dl
螺栓
       數(shù)量
螺栓
       直徑d
螺栓
       長(zhǎng)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


主要尺寸及重量


公稱壓力
       PN MPa
公稱通徑
       DN mm
尺寸(mm)重量
       (Kg)
配管法蘭(供參考)
LDD2D3D4螺栓孔中心
       圓直徑D1
螺栓
       數(shù)量
螺栓
       直徑d
螺栓
       長(zhǎng)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


主要尺寸及重量


公稱壓力
       PN MPa
公稱通徑
       DN mm
尺寸(mm)重量
       (Kg)
配管法蘭(供參考)
LDD2D3D4螺栓孔中心
       圓直徑D1
螺栓
       數(shù)量
螺栓
       直徑d
螺栓
       長(zhǎng)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:不同的法蘭標(biāo)準(zhǔn)其尺寸有一定的差異,故配管法蘭的螺栓直徑
       d、螺栓長(zhǎng)度L,等尺寸僅供參考。
       本表中配管法蘭尺寸主要以JB/T74—90標(biāo)準(zhǔn)系列2為依據(jù)。


主要尺寸及重量


壓力級(jí)公稱通徑尺寸(mm)重量
       (Kg)
配管法蘭(供參考)
NPSDNLDD2D3D4螺栓孔心
       圓直徑D1
螺栓
       數(shù)量
螺栓
       直徑d
螺栓
       長(zhǎng)度L1
inmmRFRJ
Class150
       PN2.0MPa
1/21525461525250.2860.541/2M1490-
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
       PN5.0MPa
512511019511012513212216.083/4M20210225
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


主要尺寸及重量


壓力級(jí)公稱通徑尺寸(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(zhǎng)度L1
inmmRFRJ
Class300
       PN5.0MPa
11/265631286275753.0149.083/4M20170190
380711477690904.0168.583/4M20185205
410080179951121125.5200.083/4M20200220
512511021411012513213235.083/4M20235255
615012524912715015822270.0123/4M20255275
820016030516520020836330.0127/8M24305325
Class600
       PN11.0MPa
1/21525521525250.466.541/2M1495105
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
       PN15.0MPa
1/21525621525250.682.543/4M20125140
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、不同的法蘭標(biāo)準(zhǔn)其尺寸有一定的差異故配管法蘭的螺栓直徑d、螺桂長(zhǎng)度Ll等尺寸僅供參考。
       2、RF表示突面法蘭;RJ表示環(huán)連接面法蘭。
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