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Product model: H76H/Y
Nominal diameter: DN50-DN300 (2 '' -48 '')
Nominal pressure: PN20-PN260 (Class150-2500Lb)
Temperature range: -20 ℃~425 ℃
Valve body material: carbon steel/stainless steel
Valve stem material: SS304
Valve cover material: carbon steel/stainless steel
Valve plate material: SS304
Connection method: wafer type connection
Scope of application: Water, oil, steam, gas, gas, and certain corrosive liquids and other media
Nominal diameter: DN50-DN300 (2 '' -48 '')
Nominal pressure: PN20-PN260 (Class150-2500Lb)
Temperature range: -20 ℃~425 ℃
Valve body material: carbon steel/stainless steel
Valve stem material: SS304
Valve cover material: carbon steel/stainless steel
Valve plate material: SS304
Connection method: wafer type connection
Scope of application: Water, oil, steam, gas, gas, and certain corrosive liquids and other media
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Product Overview
Double disc check valves with clamp lugs are also known as reverse flow valves, check valves, back pressure valves, and one-way valves. This type of valve is an automatic valve that automatically opens and closes by the force generated by the flow of the medium itself in the pipeline. Check valves are used in pipeline systems to prevent media backflow and the discharge of media inside the container. Check valves can also be used to supply pipelines to auxiliary systems where the pressure may rise above the main system pressure.
|
Pressure
rating |
DN
|
Dimension（mm) |
Weight（kg）
|
Flange(as referenced)
|
|||||||||||||||
|
NPS
|
DN
|
L
|
D1
|
D2
|
D3
|
D4
|
P
|
Quantity
of the bolt |
Diameter
of the bolt |
n
|
Quantity
of the bolt |
Diameter of
the bolt |
Length of the bolt
|
||||||
|
RF
|
RJ
|
in
|
mm
|
in
|
mm
|
RF
|
RJ
|
||||||||||||
|
Class 150
PN2.0MPa |
2
|
50
|
60
|
120.5
|
92
|
102
|
51
|
56
|
82.55
|
4
|
3/4
|
19
|
1.6
|
4
|
4
|
5/8
|
M16
|
140
|
155
|
|
2 1/2
|
65
|
67
|
139.5
|
105
|
121
|
65
|
73
|
101.6
|
4
|
3/4
|
19
|
1.6
|
5.5
|
4
|
5/8
|
M16
|
150
|
165
|
|
|
3
|
80
|
73
|
152.5
|
127
|
133
|
80
|
88
|
114.3
|
4
|
3/4
|
19
|
1.6
|
7
|
4
|
5/8
|
M16
|
160
|
175
|
|
|
4
|
100
|
73
|
190.5
|
157
|
171
|
102
|
108
|
149.225
|
8
|
3/4
|
19
|
1.6
|
11
|
8
|
5/8
|
M16
|
170
|
185
|
|
|
5
|
125
|
86
|
216
|
186
|
194
|
127
|
132
|
171.45
|
8
|
7/8
|
22
|
1.6
|
15
|
8
|
3/4
|
M20
|
190
|
205
|
|
|
6
|
150
|
98
|
241.5
|
216
|
219
|
152
|
160
|
193.675
|
8
|
7/8
|
22
|
1.6
|
19
|
8
|
3/4
|
M20
|
205
|
220
|
|
|
8
|
200
|
127
|
298.5
|
270
|
273
|
203
|
210
|
247.65
|
8
|
7/8
|
22
|
1.6
|
36
|
8
|
3/4
|
M20
|
240
|
255
|
|
|
10
|
250
|
146
|
362
|
324
|
330
|
254
|
266
|
304.801
|
12
|
1
|
25
|
1.6
|
61
|
12
|
7/8
|
M24
|
270
|
285
|
|
|
12
|
300
|
181
|
432
|
381
|
406
|
305
|
310
|
381.001
|
12
|
1
|
25
|
1.6
|
119
|
12
|
7/8
|
M24
|
310
|
325
|
|
|
14
|
350
|
184
|
476
|
413
|
425
|
350
|
355
|
396.876
|
12
|
1 1/8
|
29
|
1.6
|
131
|
12
|
1
|
M27
|
325
|
340
|
|
|
16
|
400
|
191
|
540
|
470
|
483
|
400
|
405
|
454.026
|
16
|
1 1/8
|
29
|
1.6
|
180
|
16
|
1
|
M27
|
340
|
355
|
|
|
18
|
450
|
203
|
578
|
533
|
546
|
450
|
455
|
517.526
|
16
|
1 1/4
|
32
|
1.6
|
203
|
16
|
1 1/8
|
M30
|
365
|
380
|
|
|
20
|
500
|
219
|
638
|
584
|
597
|
500
|
505
|
558.801
|
20
|
1 1/4
|
32
|
1.6
|
275
|
20
|
1 1/8
|
M30
|
385
|
400
|
|
|
24
|
600
|
222
|
749.5
|
692
|
711
|
600
|
605
|
673.101
|
20
|
1 1/4
|
35
|
1.6
|
314
|
20
|
1 1/4
|
M33
|
405
|
420
|
|
|
28
|
700
|
305
|
795.5
|
762
|
-
|
700
|
700
|
-
|
40
|
7/8
|
22
|
1.6
|
910
|
40
|
3/4
|
M20
|
455
|
-
|
|
|
30
|
750
|
305
|
846
|
813
|
-
|
746
|
750
|
-
|
44
|
7/8
|
22
|
1.6
|
1025
|
44
|
3/4
|
M20
|
455
|
-
|
|
|
32
|
800
|
305
|
900
|
864
|
-
|
796
|
800
|
-
|
48
|
7/8
|
22
|
1.6
|
1344
|
48
|
3/4
|
M20
|
460
|
-
|
|
|
36
|
900
|
368
|
1009.5
|
972
|
-
|
898
|
910
|
-
|
44
|
1
|
25
|
1.6
|
1536
|
44
|
7/8
|
M24
|
540
|
-
|
|
|
42
|
1050
|
432
|
1171.5
|
1130
|
-
|
1050
|
1055
|
-
|
48
|
1 1/8
|
29
|
1.6
|
2310
|
48
|
1
|
M27
|
625
|
-
|
|
|
48
|
1200
|
524
|
1335
|
1289
|
-
|
1200
|
1205
|
-
|
44
|
1 1/4
|
32
|
1.6
|
3364
|
44
|
1 1/8
|
M30
|
740
|
-
|
|
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