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Wafer type double disc check valve
Product Name:
Wafer type double disc check valve
Description:
概述:
   止回阀安装在管路系统,其主要作用是防止介质倒流,止回阀是一种依靠介质压力开启和关闭的自动阀门。以往国内普遍采用的是H44型法兰连接旋启式止回阀和H41型法兰连接升降式止回阀,这种传统的止回阀体积笨大,流体阻力大,阀门关闭时水锤压力高,安装、维修难,使用寿命短。
性能参数:
型 号 公 称 压 力 PN(MPa) 试验压力PN(MPa) 工作温度 (℃ ) 适用介质
壳 体 密 封

H77X

H77H

H77Y

H77W

1.0 1.5 1.1

软密封:

<80

硬密封:

<450

水、气体、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
止回阀主要零部件材料:
零 件 名 称 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
阀体、蝶板 铸钢WCB 铬 钼 钢 铸钢WCB 1Cr18Ni9Ti
阀 杆 2Cr13 1Cr18Ni9Ti 2Cr13
阀体密封圈 - 堆焊合金焊 堆焊硬质合金焊 - -
助关弹簧 1Cr18Ni9Ti 耐 热 合 金 1Cr18Ni9Ti
公称通径DN(mm) L D 2 D 3 公称通径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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