Wafer Dual Plated Check Valve

A wafer dual plate check valve is a type of check valve that serves to regulate the flow of fluids in a pipeline system and prevent backflow. It features a compact and space-saving design, making it suitable for applications where limited installation space is a consideration. The valve consists of two hinged plates, often called dual plates, that swing open in the direction of fluid flow and close to prevent reverse flow. 

Main parts and materials

No
Part
Material
1
Body
Cast iron/Ductile iron
2
Rubber gasket
EPDM
3
Disc
Ductile iron/WCB/Stainless steel
4
Spring
Stainless steel
5
Stem
Carbon steel/Stainless steel

Outline and Connecting Measurement

DN
D
D1
L
R
T
50
107
65
43
28.8
19
65
127
80
46
36.1
20
80
142
94
64
43.4
28
100
162
117
64
52.8
27
125
192
145
70
65.7
30
150
218
170
76
78.6
31
200
273
224
89
104.4
33
250
328
265
114
127
50
300
378
310
114
148.3
43
350
438
360
127
172.4
45
400
489
410
140
197.4
52
450
539/555
450
152
217.8
58
500
594
505
152
217.8
58
600
690
624
178
295.4
73
700
800
720
229
354
98

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