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Wafer type double disc check valve
Product Name:
Wafer type double disc check valve
Description:
概述:
   止回閥安裝在管路系統,其主要作用是防止介質倒流,止(zhi)回閥是一種依靠介質壓力開啟和關閉的自動閥門。以往國內普遍采用的是H44型法蘭連接旋啟式止回閥和H41型法蘭連接升降式止回閥,這種傳統的止回閥體積笨大,流體阻力大,閥門關閉時水錘壓力高,安裝、維修難,使用壽命短。
性能參數:
型 號 公 稱 壓 力 PN(MPa) 試驗壓力PN(MPa) 工作溫度 (℃ ) 適用介質
殼 體 密 封

H77X

H77H

H77Y

H77W

1.0 1.5 1.1

軟密封:

<80

硬密封:

<450

水、氣體、油品、硝酸等
1.6 2.4 1.76
2.5 3.75 2.75
4.0 6.0 4.4
6.4 9.6 7.0
止回閥(fa)主要零部件材料:
零 件 名 稱 材 料
H77X- 10C、25
16、40
H77H- 16C、40
25、64
H77Y- 25I 64I
40I
H77W- 16C、25
25C、40
H77W- 10P、25P
16P、40P
閥體、蝶板 鑄鋼WCB 鉻 鉬 鋼 鑄鋼WCB 1Cr18Ni9Ti
閥 桿 2Cr13 1Cr18Ni9Ti 2Cr13
閥體密封圈 - 堆焊合金焊 堆焊硬質合金焊 - -
助關彈簧 1Cr18Ni9Ti 耐 熱 合 金 1Cr18Ni9Ti
公稱通徑DN(mm) L D 2 D 3 公稱通徑DN(mm) L D 2 D 3
H77X H77H
H77Y
H77W
H77X H77H
H77Y
H77W
50 43 100 43 46 400 140 485 376 390
80 64 135 71 80 450 152 545 427 427
100 64 155 91.5 94 500 152 608 479 490
125 70 185 115 118 600 178 718 579 588
150 76 210 141 145 700 229 800 675 686
200 89 265 191 200 800 241 905 774 784
250 114 320 230 250 900 241 1005 875 -
300 114 320 230 250 900 241 1005 875 -
350 127 435 340 340 1200 350 1325 1164 -

Keyword:Valve | inlet valve | Shanghai valve | Power Station Valve | Industrial Valve | Universal Valve | Chemical valve | High valve | high temperature valve | Shenzhen valve | Electric valve | China Valves
 
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