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Medium Capability:
Freshwater, Sea water, Air, steam, food, medicine and kinds of oil, acid, alkali, salt.
Introduction of Wafer Type Dual Plate Check Valve:
The Valve is consist of body, disc, stem and spring etc, can be installed in pipeline vertically or horizontally to prevent back flow. It is featured as widely use, operating smoothly, well sealed.
Size：DN50-DN800
pressure：PN16, ANSI
Material: cast iron, ductile iron and Stainless steel
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Item
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Qty
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Parts Name
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|
1
|
1
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Body
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2
|
1
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Seat
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3
|
2
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Disc
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4
|
2
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Spring
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5
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2
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Stem
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Structure and Parts List for Dual Plate Check Valve
Nominal Pressure: PN10/PN16
Technical Specification for Dual Plate Check Valve
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Size
|
DN40~DN800
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DN40~DN600
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Pressure
|
1.0MPa
|
1.6MPa
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|
TestPressure
|
Shell
|
1.1MPa
|
1.76MPa
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Seat
|
1.5MPa
|
2.4MPa
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Service
Temperature
|
1-EPDM
|
-30℃~+110℃
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2-Neoplene
|
-7℃~+93℃
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3-NBR
|
-12℃~+82℃
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4-Viton
|
+10℃~+150℃
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Service Fluid
|
Freshwater, Sea water, Air, steam, food, medicine and kinds of oil, acid, alkali, salt.
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Pressure Loss Chart
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Body
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DISC
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Stem
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Bushing
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Seat
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Material
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Material
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WorkingTemperature
(℃)
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C.I
|
DI
|
416SS
|
Lubricative Bronze
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NR
|
-20℃-+85℃
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D.I
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WCB
|
431SS
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Macromolecule +PTFE
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HYPALON
|
-18℃-+135℃
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WCB
|
AL-Brz
|
316SS
|
316SS+PTFE
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EPDM
|
-30℃-+110℃
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AL-Brz
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Stainless Steel
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|
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NEOPRENE
|
-7℃-+93℃
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StainlessSteel
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|
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NBR
|
-12℃-+82℃
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|
|
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WRR
|
-10℃-+50℃
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|
|
|
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VITON
|
-23℃-+150℃
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|
|
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HRR
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-20℃-+150℃
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|
|
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PTFE
|
+10℃-+150℃
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Outline Dimensions and Weight for Wafer Type Dual Plate Check Valve
|
Size
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D
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D1
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D2
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L
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R
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T
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Weight
Kgs.
|
|
inch
|
mm
|
|
2
|
50
|
107
|
65
|
43.3
|
43
|
28.8
|
19
|
1.5
|
|
2 1/2
|
65
|
127
|
80
|
60.2
|
46
|
36.1
|
20
|
2.4
|
|
3
|
80
|
142
|
94
|
66.4
|
64
|
43.4
|
28
|
3.6
|
|
4
|
100
|
162
|
117
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90.8
|
64
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52.8
|
27
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5.7
|
|
5
|
125
|
192
|
145
|
116.9
|
70
|
65.7
|
30
|
7.3
|
|
6
|
150
|
218
|
170
|
144.6
|
76
|
78.6
|
31
|
9.0
|
|
8
|
200
|
273
|
224
|
198.2
|
89
|
104.4
|
33
|
17.0
|
|
10
|
250
|
328
|
265
|
233.7
|
114
|
127
|
50
|
26.0
|
|
12
|
300
|
378
|
310
|
279.05
|
114
|
146
|
43
|
37.0
|
|
14
|
350
|
438
|
360
|
327.87
|
127
|
170
|
45
|
54.9
|
|
16
|
400
|
489
|
410
|
375.88
|
140
|
195
|
52
|
78.0
|
|
18
|
450
|
555
|
450
|
414.06
|
152
|
215
|
58
|
119.0
|
|
20
|
500
|
594
|
505
|
467.83
|
152
|
241
|
58
|
122.0
|
|
24
|
600
|
700
|
624
|
569.59
|
178
|
294
|
73
|
174.0
|
|
28
|
700
|
820
|
720
|
662.75
|
229
|
345
|
96
|
219.0
|
|
32
|
800
|
930
|
825
|
762.72
|
241
|
394
|
99
|
316.0
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