Feature:
1. Design and manufacture of ptoduct according to American state standard ANSI B16.34, American petroleum institute standard API6D.
2. Small opening pressure, the disc can be opened fully with a very small pressure differential.
3. Rocker and hinge pin use inside-set design, reduces outer leakage point.
4.The body and bonnet of class 1500~Class 900 check valve is connected with stud. And the body and bonnet of class 1500~class 2500 check valve pressure seat structure to make product bulk small, weight light, seal credible.
Standard:
DESIGN & MANUFACTURING:API 6D& ANSI B16.34 & BS1868
Face to Face Dimension: ANSI B 16.10
Flanged End Dimension : ANSI B 16.5 Or MSS SP-44 for 26” & up
Testing & Inspection: API 598
Pressure and temperature: ANSI B16.34
Structure:
Main parts
NO |
NAME OF PART
|
1
|
BODY
|
2
|
COVER
|
3
|
DISC
|
4
|
BODY SEAT RING
|
5
|
HINGE PIN
|
7
|
ARM
|
8
|
DISC NUT
|
9
|
DISC WASHER
|
11
|
BONNET BOLT
|
12
|
BONNET NUT
|
19
|
EYE BOLT
|
20
|
SPLIT PIN
|
21
|
PLUG GASKET
|
22
|
GASKET
|
24
|
PLUG
|
Main parts material
NO
|
NAME OF PART
|
ASTM SPECIFICATION
|
CARBON STEEL
|
HIGH TEMPERATURE SERVICE
|
LOW TEMPERATURE SERVICE
|
STAINLESS STEEL
|
1
|
BODY
|
A216-WCB
|
A217-WC6
|
A217-WC9
|
A217-C5
|
A352-LCB/LC2/LC3
|
CF8M
|
CF8C
|
2
|
COVER
|
A216-WCB
|
A217-WC6
|
A217-WC9
|
A217-C5
|
A352-LCB/LC2/LC3
|
CF8M
|
CF8C
|
3
|
DISC
|
A217-CA15
|
A217-WC6
|
A217-WC9
|
A217-C5
|
A352-LCB/LC2/LC3
|
CF8M
|
CF8C
|
4
|
BODY SEAT RING
|
Al 05 + HARD FACE
|
A182-F11
|
A182-F22
|
A182-F5a
|
A182-F304
|
F316
|
F347
|
5
|
HINGE PIN
|
A276-410
|
A276-410
|
A276-410
|
A276-410
|
A276-304
|
F316
|
F347
|
7
|
ARM
|
A216-WCB
|
A217-WC6
|
A217-WC9
|
A217-C5
|
A352-LCB/LC2/LC3
|
CF8M
|
CF8C
|
8
|
DISC NUT
|
AISI 304
|
F316
|
F347
|
9
|
DISC WASHER
|
AISI 304
|
F316
|
F347
|
11
|
BONNET BOLT
|
A193-B7
|
A193-B16
|
A193-B16
|
A193-B16
|
A320-L7
|
A193-B8
|
A193-B8
|
12
|
BONNET NUT
|
A194-2H
|
A194-4
|
A194-4
|
A194-4
|
A194-4
|
A194-8
|
A194-8
|
19
|
EYE BOLT
|
A105
|
SS
|
SS
|
20
|
SPLIT PIN
|
AISI 304
|
F316
|
F347
|
21
|
PLUG GASKET
|
COMMERCIAL
|
22
|
GASKET
|
COMMERCIAL
|
24
|
PLUG
|
A105
|
F316
|
F316
|
Main Diemensions
CLASS 150 - Cast & Stainless Standard Swing Check Valves
DIMENSIONS & WEIGHTS
SIZE
|
in
|
2
|
2.5
|
3
|
4
|
6
|
8
|
10
|
12
|
14
|
16
|
18
|
20
|
24
|
28
|
30
|
36
|
mm
|
51
|
64
|
76
|
102
|
152
|
203
|
254
|
305
|
356
|
406
|
457
|
508
|
610
|
711
|
762
|
914
|
A1
(RF)
|
in
|
8.0
|
8.5
|
9.5
|
11.5
|
16.0
|
19.5
|
24.5
|
27.5
|
31.0
|
36.0
|
38.5
|
38.5
|
51.0
|
57.0
|
60.0
|
77.0
|
mm
|
203
|
216
|
241
|
292
|
356
|
495
|
622
|
698
|
787
|
864
|
978
|
978
|
1295
|
1448
|
1524
|
1956
|
A2
(RTJ)
|
in
|
5.8
|
6.4
|
6.9
|
8.3
|
11.3
|
13.6
|
16.7
|
19.5
|
23.8
|
25.6
|
27.9
|
29.6
|
38.5
|
40.0
|
45.2
|
53.1
|
mm
|
147
|
163
|
176
|
210
|
288
|
346
|
424
|
496
|
605
|
649
|
708
|
752
|
978
|
1016
|
1149
|
1349
|
A3
(BW)
|
in
|
8.0
|
8.5
|
9.5
|
11.5
|
16.0
|
19.5
|
24.5
|
27.5
|
31.0
|
36.0
|
38.5
|
38.5
|
51.0
|
57.0
|
60.0
|
77.0
|
mm
|
203
|
216
|
241
|
292
|
356
|
495
|
622
|
698
|
787
|
864
|
978
|
978
|
1295
|
1448
|
1524
|
1956
|
H2
|
in
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
mm
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
WGT
(RF)
|
Ib
|
35
|
49
|
66
|
97
|
172
|
260
|
520
|
758
|
930
|
1398
|
1799
|
2165
|
3925
|
4520
|
4644
|
7387
|
kg
|
16
|
22
|
30
|
44
|
78
|
118
|
236
|
344
|
422
|
634
|
816
|
982
|
1780
|
2050
|
2108
|
3350
|
WGT
(BW)
|
lb
|
26
|
33
|
46
|
57
|
137
|
201
|
450
|
646
|
776
|
1195
|
1579
|
1879
|
3528
|
4300
|
4424
|
6946
|
kg
|
12
|
15
|
21
|
26
|
62
|
91
|
204
|
293
|
352
|
542
|
716
|
852
|
1600
|
1950
|
2008
|
3150
|
CLASS 300 - Cast & Stainless Standard Swing Check Valves
DIMENSIONS & WEIGHTS
SIZE
|
in
|
2
|
2.5
|
3
|
4
|
6
|
8
|
10
|
12
|
14
|
16
|
18
|
20
|
24
|
28
|
30
|
36
|
mm
|
51
|
64
|
76
|
102
|
152
|
203
|
254
|
305
|
356
|
406
|
457
|
508
|
610
|
711
|
762
|
914
|
A1
(RF)
|
in
|
10.5
|
11.5
|
12.5
|
14.0
|
17.5
|
21.0
|
24.5
|
28.0
|
33.0
|
34.0
|
38.5
|
40.0
|
53.0
|
59.0
|
62.75
|
82.0
|
mm
|
267
|
292
|
318
|
356
|
444
|
533
|
622
|
711
|
838
|
864
|
978
|
1016
|
1346
|
1499
|
1594
|
2083
|
A2
(RTJ)
|
in
|
11.12
|
12.12
|
13.12
|
14.62
|
18.12
|
21.62
|
25.12
|
28.62
|
33.62
|
34.62
|
39.12
|
40.75
|
53.88
|
60.0
|
63.75
|
83.12
|
mm
|
283
|
308
|
333
|
371
|
460
|
549
|
638
|
111
|
854
|
880
|
994
|
1035
|
1368
|
1524
|
1619
|
2108
|
A3
(BW)
|
in
|
10.5
|
11.5
|
12.5
|
14.0
|
17.5
|
21.0
|
24.5
|
28.0
|
33.0
|
34.0
|
38.5
|
40.0
|
53.0
|
59.0
|
62.75
|
82.0
|
mm
|
267
|
292
|
318
|
356
|
444
|
533
|
622
|
711
|
838
|
864
|
978
|
1016
|
1346
|
1499
|
1594
|
2083
|
H2
|
in
|
6.4
|
7.1
|
7.8
|
8.7
|
12.8
|
14.5
|
18.6
|
20.9
|
22.8
|
27.4
|
31.4
|
30.6
|
39.6
|
45.2
|
50.0
|
60.6
|
mm
|
163
|
180
|
197
|
220
|
326
|
368
|
473
|
530
|
580
|
695
|
797
|
776
|
1007
|
1149
|
1270
|
1540
|
WGT
(RF)
|
lb
|
53
|
82
|
99
|
150
|
302
|
485
|
595
|
1092
|
1498
|
2095
|
2646
|
3305
|
4851
|
6174
|
7497
|
11025
|
kg
|
24
|
37
|
45
|
68
|
137
|
220
|
270
|
495
|
680
|
950
|
1200
|
1500
|
2200
|
2800
|
3400
|
5000
|
WGT
(BW)
|
lb
|
46
|
77
|
77
|
112
|
242
|
401
|
463
|
1014
|
1157
|
1764
|
2139
|
2688
|
3925
|
5292
|
6505
|
9482
|
kg
|
21
|
35
|
35
|
51
|
110
|
182
|
210
|
460
|
525
|
800
|
970
|
1220
|
1780
|
2400
|
2950
|
4300
|
CLASS 600 - Cast & Stainless Standard Swing Check Valves
DIMENSIONS & WEIGHTS
SIZE
|
in
|
2
|
2.5
|
3
|
4
|
6
|
8
|
10
|
12
|
14
|
16
|
18
|
20
|
24
|
28
|
30
|
mm
|
51
|
64
|
76
|
102
|
152
|
203
|
254
|
305
|
356
|
406
|
457
|
508
|
610
|
711
|
762
|
A1
(RF)
|
in
|
11.5
|
13.0
|
14.0
|
17.0
|
22.0
|
26.0
|
31.0
|
33.0
|
35.0
|
39.0
|
43.0
|
47.0
|
55.0
|
63.0
|
65.0
|
mm
|
292
|
330
|
356
|
432
|
559
|
660
|
787
|
838
|
889
|
991
|
1092
|
1194
|
1397
|
1600
|
1651
|
A2
(RTJ)
|
in
|
11.62
|
13.12
|
14.12
|
17.12
|
22.12
|
26.12
|
31.12
|
33.12
|
35.12
|
39.12
|
43.12
|
47.25
|
55.38
|
63.5
|
65.5
|
mm
|
295
|
333
|
359
|
435
|
562
|
664
|
791
|
841
|
892
|
994
|
1095
|
1200
|
1407
|
1613
|
1664
|
A3
(BW)
|
in
|
11.5
|
13.0
|
14.0
|
17.0
|
22.0
|
26.0
|
31.0
|
33.0
|
35.0
|
39.0
|
43.0
|
47.0
|
55.0
|
63.0
|
65.0
|
mm
|
292
|
330
|
356
|
432
|
559
|
660
|
787
|
838
|
889
|
991
|
1092
|
1194
|
1397
|
1600
|
1651
|
H2
|
in
|
8.0
|
8.6
|
10.0
|
12.5
|
15.6
|
20.8
|
24.6
|
23.8
|
26.1
|
32.0
|
37.8
|
40.5
|
47.3
|
53.1
|
56.3
|
mm
|
202
|
219
|
253
|
318
|
397
|
529
|
625
|
604
|
664
|
812
|
960
|
1029
|
1202
|
1349
|
1429
|
WGT
(RF)
|
lb
|
88
|
121
|
159
|
254
|
551
|
926
|
1349
|
1786
|
2426
|
3638
|
3969
|
6168
|
7197
|
9041
|
11025
|
kg
|
40
|
55
|
72
|
115
|
250
|
420
|
612
|
810
|
1100
|
1650
|
1800
|
2800
|
3264
|
4100
|
5000
|
WGT
(BW)
|
lb
|
68
|
99
|
132
|
176
|
452
|
805
|
1085
|
1577
|
1940
|
2955
|
3197
|
5177
|
5654
|
7718
|
9482
|
kg
|
31
|
45
|
60
|
80
|
205
|
365
|
492
|
715
|
880
|
1340
|
1450
|
2350
|
2564
|
3500
|
4300
|
CLASS 900 - Cast & Stainless Standard Swing Check Valves
DIMENSIONS & WEIGHTS
SIZE
|
in
|
2
|
2.5
|
3
|
4
|
6
|
8
|
10
|
12
|
14
|
16
|
18
|
20
|
24
|
28
|
30
|
mm
|
51
|
64
|
76
|
102
|
152
|
203
|
254
|
305
|
356
|
406
|
457
|
508
|
610
|
711
|
762
|
A1
(RF)
|
in
|
14.5
|
16.5
|
15.0
|
18.0
|
24.0
|
29.0
|
33.0
|
38.0
|
40.5
|
44.5
|
48.0
|
52.0
|
61.0
|
69.0
|
73.0
|
mm
|
368
|
419
|
381
|
457
|
610
|
737
|
838
|
965
|
1029
|
1130
|
1219
|
1321
|
1549
|
1753
|
1854
|
A2
(RTJ)
|
in
|
14.62
|
16.62
|
15.12
|
18.12
|
21.12
|
29.12
|
33.12
|
38.12
|
40.88
|
44.88
|
48.5
|
52.5
|
61.75
|
69.9
|
73.9
|
mm
|
371
|
422
|
384
|
460
|
613
|
740
|
841
|
968
|
1038
|
1140
|
1232
|
1333
|
1568
|
1775
|
1876
|
A3
(BW)
|
in
|
14.5
|
16.5
|
15.0
|
18.0
|
24.0
|
29.0
|
33.0
|
38.0
|
40.5
|
44.5
|
48.0
|
52.0
|
61.0
|
69.0
|
73.0
|
mm
|
368
|
419
|
381
|
457
|
610
|
737
|
838
|
965
|
1029
|
1130
|
1219
|
1321
|
1549
|
1753
|
1854
|
H2
|
in
|
13.1
|
13.7
|
12.6
|
16.7
|
18.9
|
22.2
|
28.3
|
30.7
|
31.8
|
33.0
|
36.3
|
41.4
|
47.2
|
55.1
|
61.8
|
mm
|
333
|
349
|
321
|
423
|
479
|
565
|
721
|
781
|
807
|
838
|
921
|
1051
|
1200
|
1400
|
1569
|
WGT
(RF)
|
Ib
|
154
|
243
|
2423
|
471
|
838
|
1375
|
2536
|
3197
|
3859
|
5336
|
7166
|
8820
|
12789
|
17309
|
19955
|
kg
|
70
|
110
|
110
|
214
|
380
|
624
|
1150
|
1450
|
1750
|
2420
|
3250
|
4000
|
5800
|
7800
|
9050
|
WGT
(BW)
|
lb
|
110
|
192
|
187
|
383
|
662
|
1088
|
2095
|
2602
|
3197
|
4520
|
5954
|
7275
|
9923
|
14663
|
16868
|
kg
|
50
|
87
|
85
|
174
|
300
|
494
|
950
|
1180
|
1450
|
2050
|
2700
|
3300
|
4500
|
6650
|
7650
|
CLASS 1500 - Cast & Stainless Standard Swing Check Valves
DIMENSIONS & WEIGHTS
SIZE
|
in
|
2
|
2.5
|
3
|
4
|
6
|
8
|
10
|
12
|
14
|
16
|
18
|
20
|
24
|
mm
|
51
|
64
|
76
|
102
|
152
|
203
|
254
|
305
|
356
|
406
|
457
|
508
|
610
|
A1
(RF)
|
in
|
14.5
|
16.5
|
18.5
|
21.5
|
27.75
|
32.75
|
39.0
|
44.5
|
49.5
|
54.5
|
60.5
|
65.5
|
76.5
|
mm
|
368
|
419
|
470
|
546
|
705
|
832
|
991
|
1130
|
1257
|
1383
|
1537
|
1664
|
1943
|
A2
(RTJ)
|
in
|
14.62
|
16.62
|
18.62
|
21.62
|
28.0
|
33.13
|
39.38
|
45.12
|
50.25
|
55.38
|
61.38
|
66.38
|
77.62
|
mm
|
371
|
422
|
473
|
549
|
711
|
841
|
1000
|
1146
|
1276
|
1407
|
1559
|
1686
|
1972
|
A3
(BW)
|
in
|
14.5
|
16.5
|
18.5
|
21.5
|
27.75
|
32.75
|
39.0
|
44.5
|
49.5
|
54.5
|
60.5
|
65.5
|
76.5
|
mm
|
368
|
419
|
470
|
546
|
705
|
832
|
991
|
1130
|
1257
|
1383
|
1537
|
1664
|
1943
|
H2
|
in
|
13.1
|
13.7
|
15.3
|
16.5
|
23.1
|
26.8
|
29.8
|
39.7
|
40.8
|
42.0
|
47.1
|
51.1
|
57.1
|
mm
|
333
|
349
|
389
|
419
|
587
|
680
|
756
|
1008
|
1035
|
1067
|
1197
|
1299
|
1451
|
WGT
(RF)
|
lb
|
154
|
243
|
375
|
662
|
1531
|
2624
|
4079
|
7336
|
7938
|
10805
|
14553
|
17971
|
25909
|
kg
|
70
|
110
|
170
|
300
|
695
|
1190
|
1850
|
3330
|
3600
|
4900
|
6600
|
8150
|
11750
|
WGT
(BW)
|
lb
|
110
|
192
|
298
|
540
|
1234
|
2128
|
3263
|
6080
|
6251
|
8600
|
11576
|
14222
|
19845
|
kg
|
50
|
87
|
135
|
245
|
560
|
965
|
1480
|
2760
|
2835
|
3900
|
5250
|
6450
|
9000
|
CLASS 2500 - Cast & Stainless Standard Swing Check Valves
DIMENSIONS & WEIGHTS
SIZE
|
in
|
2
|
2.5
|
3
|
4
|
6
|
8
|
10
|
12
|
14
|
16
|
mm
|
51
|
64
|
76
|
102
|
152
|
203
|
254
|
305
|
356
|
406
|
A1
(RF)
|
in
|
17.75
|
20.0
|
22.75
|
26.5
|
36.0
|
40.25
|
50.0
|
56.0
|
62.0
|
68.0
|
mm
|
451
|
508
|
578
|
673
|
914
|
1022
|
1270
|
1422
|
-
|
-
|
A2
(RTJ)
|
in
|
17.87
|
20.25
|
23.0
|
26.88
|
36.5
|
40.87
|
50.88
|
56.88
|
-
|
-
|
mm
|
454
|
514
|
584
|
683
|
927
|
1038
|
1292
|
1445
|
-
|
-
|
A3
(BW)
|
in
|
17.75
|
20.0
|
22.75
|
26.5
|
36.0
|
40.25
|
50.0
|
56.0
|
62.0
|
68.0
|
mm
|
451
|
508
|
578
|
673
|
914
|
1022
|
1270
|
1422
|
-
|
-
|
H2
|
in
|
16.4
|
16.5
|
17.4
|
18.9
|
20.1
|
28.0
|
33.5
|
39.4
|
47.2
|
51.1
|
mm
|
416
|
419
|
441
|
479
|
511
|
711
|
851
|
1000
|
1200
|
1299
|
WGT
(RF)
|
lb
|
331
|
529
|
772
|
1433
|
3197
|
5623
|
8710
|
12569
|
-
|
-
|
kg
|
150
|
240
|
350
|
650
|
1450
|
2550
|
3950
|
5700
|
-
|
-
|
WGT
(BW)
|
lb
|
265
|
430
|
617
|
1191
|
2646
|
4851
|
6946
|
10033
|
13671
|
17861
|
kg
|
120
|
195
|
280
|
540
|
1200
|
2200
|
3150
|
4550
|
6200
|
8100
|
|