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Product Name:Dual-Plate Check Valve
Dual-Plate Check Valve

Specification
Size: 2"-48"
Design standard: API 594, API 6D
Face to face: API594, API6D
Pipe flange: ANSI  B16.5, API 605, ASME B16.47
Testing & inspection: API 598
 Pressure- temperature rating: ANSI B16.34
Type of connection: Wafer
 
Structural features:
Short in face to face dimensions, small in bulk, light in weight
Valve discs close quickly, the pressure of the water hammer is little
Applicable to both vertical and horizontal pipes. Simple installation
Simple, impact structure and nice outline
Smooth channel and little fluid resistance
Flexible action and fine sealing
Prolonged service time and high raliability.

Materials
Part
WCB
A352 LCB
A217 WC6
A217 WC9
A217 C5
A217 C12
A351 CF8
A351 CF8M
Body
A216 WCB
A352 LCB
A217 WC6
A217 WC9
A217 C5
A217 C12
A351 CF8
A351 CF8M
Disc
A351 CF8
A351 CF8
A182 F11
A182 F22
A217 C5
A217 C12
A182 F304
A182 F316
Stem
A182 F304
A182 F304
A182 F304
A182 F304
A182 F304
A182 F304
A182 F304
A182 F316
Spring
Stainless steel, Inconel X-750
Seat
Stainless Steel, EPDM, NBR, PTFE
 
Dimensions
Ratings
Size
Dimensions(mm)
Weight(kg)
Flange Connection Dia.(for reference only)
NPS
DN
L
D
D3
D2
D1
Bolt Qty
d
L1
in
mm
RF
RJ
Class 150
PN2.0MPa
2
50
60
103
56
51
2
120.5
4
5/8
M16
140
155
21/2
65
67
122
73
65
3
139.5
4
5/8
M16
150
165
3
80
73
135
88
80
4
152.5
4
5/8
M16
160
175
4
100
73
173
108
102
6
190.5
8
5/8
M16
170
185
5
125
86
195
132
127
8
216.0
8
3/4
M20
190
205
6
150
98
220
160
152
13
241.5
8
3/4
M20
205
220
8
200
127
277
210
203
25
298.5
8
3/4
M20
240
255
10
250
146
337
266
254
39
362.0
12
7/8
M24
270
285
12
300
181
407
310
305
54
432.0
12
7/8
M24
310
325
14
350
184
448
355
350
80
476.0
12
1
M27
325
340
16
400
191
512
405
400
117
540.0
16
1
M27
340
355
18
450
203
547
455
450
138
578.0
16
11/8
M30
365
380
20
500
219
604
505
500
163
635.0
20
11/8
M30
385
400
24
600
222
715
605
600
331
749.5
20
11/4
M33
405
420
28
700
305
773
700
700
380
795.5
40
3/4
M20
455
-
30
750
305
824
750
746
425
846.0
44
3/4
M20
455
-
32
800
305
878
800
796
560
900.0
48
3/4
M20
460
-
36
900
368
983
910
898
640
1009.5
44
7/8
M24
540
-
42
1050
432
1142
1055
1050
960
1171.5
48
1
M27
625
-
48
1200
524
1302
1205
1200
1400
1335.0
44
11/8
M30
740
-
Class 300
PN5.0MPa
2
50
60
110
58
51
3
127.0
8
5/8
M16
155
175
21/2
65
67
128
73
65
4
149.0
8
3/4
M20
175
195
3
80
73
147
88
80
6
168.5
8
3/4
M20
190
210
4
100
73
179
108
102
8
200.0
8
3/4
M20
195
215
5
125
86
214
132
127
15
235.0
8
3/4
M20
215
235
6
150
98
249
160
152
18
270.0
12
3/4
M20
230
250
8
200
127
305
210
203
31
330.0
12
7/8
M24
280
300
10
250
146
359
266
254
51
387.5
16
1
M27
315
335
12
300
181
420
310
305
77
451.0
16
11/8
M30
365
385
14
350
222
483
355
350
117
514.5
20
11/8
M30
410
430
16
400
232
537
405
400
190
571.5
20
11/4
M33
435
455
18
450
264
594
455
450
200
628.5
24
11/4
M33
475
535
20
500
292
652
505
500
265
686.0
24
11/4
M33
510
585
24
600
318
772
608
600
410
813.0
24
11/2
M39
560
-
30
750
368
882
740
735
660
921.0
36
13/8
M36
650
-
36
900
483
1044
880
873
1020
1089.0
32
15/8
M42
800
-
42
1050
568
1196
1045
1035
1540
1244.5
36
13/4
M45
920
-
48
1200
629
1365
1190
1179
2260
1416.0
40
17/8
M48
1010
-
We can also produce flanged ends dual-plate swing check valve and the pressure can be up to Class 2500# at the meanwhile. We are competitive for this item. Please do not hesitate to contact us if you have any requirements.
 ♦ The Related Products for Dual-Plate Check Valve: >>More...  
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·Cast Iron Globe Type Check Valve
·Dual-Plate Check Valve
 

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