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Lift check valve
Lift check valve: check valve and internal thread check valve whose valve clack slides along the vertical center line of the valve body can only be installed on horizontal tubes, and round balls can be adopted as the valve clack on the high-pressure small-diameter check valve. The upper part of the valve clack and the lower part of valve cover are processed with pilot sleeve, and the valve guide sleeve of valve clack can freely lift or fall in that of valve cup. When the medium flows downstream, the valve clack will naturally fall on the valve seat to prevent medium from reversely flowing.
1. The valve clack and the sealing surface of the valve seat will be closed under the force of medium when the medium flows towards the stipulated direction or under its own gravity and opposite force of medium when it flows reversely to prevent the medium from reversely flowing;
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DN(mm)
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50～300
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|
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PN(MPa)
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1.0～2.5
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|
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Ps(MPa)
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Strength Test
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1.5～3.75
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Seal Test
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1.1～2.75
|
|
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Parts
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body
|
WCB、CF8、CF8M、CF3M
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Disc
|
WCB、CF8、CF8M、CF3M
|
|
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sealing washer
|
Hard alloy
|
|
|
Connecting
|
Flanged
|
|
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公称通径DN
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连接尺寸
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||||
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L
|
D
|
D1
|
b
|
H
|
|
|
15
|
130
|
95
|
65
|
14
|
95
|
|
20
|
150
|
105
|
75
|
14
|
105
|
|
25
|
160
|
115
|
85
|
16
|
115
|
|
32
|
180
|
135
|
100
|
16
|
135
|
|
40
|
200
|
145
|
110
|
16
|
140
|
|
50
|
230
|
160
|
125
|
16
|
148
|
|
65
|
290
|
180
|
145
|
18
|
160
|
|
80
|
310
|
195
|
160
|
20
|
172
|
|
100
|
350
|
215
|
180
|
20
|
178
|
|
125
|
400
|
245
|
210
|
22
|
250
|
|
150
|
480
|
280
|
240
|
24
|
255
|
|
200
|
550
|
335
|
295
|
26
|
295
|
|
250
|
650
|
405
|
355
|
26
|
442
|
|
300
|
750
|
460
|
410
|
30
|
450
|
Lift check valve
Lift check valve: check valve and internal thread check valve whose valve clack slides along the vertical center line of the valve body can only be installed on horizontal tubes, and round balls can be adopted as the valve clack on the high-pressure small
