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CAST STEEL SWING CHECK VALVE
 
Design standard BS 1868,API 6D & API 594
Face to face ANSI B16.10
Flange standard ANSI B16.5,DIN2543-2548
Temperature pressure standard ANSI B16.34
Test standard API 598
Test pressure
Class Nominal pressure£¨Lbs£©
150
300
600
900
1500
Shell strength test£¨Mpa£©
Water
3.0
7.8
15.4
22.5
37.5
Seal test£¨Mpa£©
2.2
5.6
11.2
16.5
27.5
Seal test£¨Mpa£©
Air
0.6
Nominal pressure£¨Mpa£©
1.6
2.5
4.0
6.4
10.0
Shell strength test£¨Mpa£©
Water
2.4
3.75
6.0
9.6
15.0
Seal test£¨Mpa£©
1.76
2.75
4.4
7.04
11
Seal test£¨Mpa£©
Air
0.6
Class 150
Dimention£ºmm
NPS(in)
1/2
1
1 1/2
2
2 1/2
3
4
5
6
8
10
12
14
16
18
20
24
28
30
L
RF
108
127
165
203
216
241
292
330
356
495
622
699
787
864
978
978
1295
1448
1524
RTJ
119
140
178
216
229
254
305
343
368
508
635
711
800
879
889
991
1308
1461
1537
H
130
140
150
170
180
185
215
240
260
300
350
400
450
480
540
600
680
710
790
WT(kg)
8
8.2
11
14
19
24
41
58
70
150
230
300
440
680
690
810
1080
1450
1620
Class 300
Dimention£ºmm
NPS(in)
1
1 1/2
2
2 1/2
3
4
5
6
8
10
12
14
16
18
20
24
28
30
L
RF
216
241
267
292
318
356
400
445
533
622
711
838
864
978
1016
1346
1499
1594
RTJ
229
254
283
308
333
371
416
460
549
638
727
854
879
994
1035
1368
1524
1620
H
150
160
170
185
215
235
270
300
340
350
420
480
520
600
670
750
780
810
WT(kg)
8.8
15
20
24
38
51
80
90
175
210
586
580
760
940
1260
1650
1725
1819
Class 600
Dimention£ºmm
NPS(in)
2
2 1/2
3
4
6
8
10
12
14
16
18
20
24
L
RF
292
330
356
432
559
660
787
838
889
991
1092
1194
1397
RTJ
295
333
359
435
562
664
791
841
892
994
1095
1200
1407
H
175
200
230
295
360
400
460
520
560
650
730
800
900
WT(kg)
29
40
50
98
207
387
580
790
892
1200
1600
2220
3000
Class 900
Dimention£ºmm
NPS(in)
2
2 1/2
3
4
6
8
10
12
14
16
18
20
L
RF
368
419
381
457
610
737
838
965
1029
1130
1219
1321
RTJ
371
420
384
460
613
740
841
968
1038
1140
1232
1334
H
250
270
280
310
380
430
480
560
630
700
750
850
WT(kg)
69
85
93
145
310
500
772
1080
1380
1810
2400
3500
Class 1500
Dimention£ºmm
NPS(in)
2
2 1/2
3
4
6
8
10
L
RF
368
419
470
546
705
832
991
RTJ
371
422
473
549
711
841
1000
H
250
270
300
330
450
500
560
WT(kg)
69
93
120
235
540
949
1275

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