Feature：
1. Back up ring: Absorbs thrust applied by internal pressure.
2. Thrust ring: Protects the soft metallic gasket from deformation.
3. Gasket Unique angular design provides superior sealing.
4. Pressure sealing cover, swing type disc, threaded or welded seat ring
Standard:
DESIGN & MANUFACTURING:API 6D& ANSI B16.34 & BS1868
Face to Face Dimension: ANSI B 16.10
Flanged End Dimension : ANSI B 16.5 & ANSI B 16.25 for butt-welding
Testing & Inspection: API 598
Main parts
|
NO
|
NAME OF PART
|
NO
|
NAME OF PART
|
|
1
|
BODY
|
12
|
BONNET NUT
|
|
2
|
COVER
|
19
|
EYE BOLT
|
|
3
|
DISC
|
21
|
PLUG GASKET
|
|
4
|
BODY SEAT RING
|
22
|
GASKET
|
|
5
|
HINGE PIN
|
25
|
PLUG
|
|
7
|
ARM
|
33
|
RETAINER
|
|
8
|
SET BOLT
|
36
|
BONNET CLAMP
|
|
9
|
DISC COVER
|
37
|
GASKET SPACER
|
|
11
|
BONNET BOLT
|
|
|
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-LC B/LC2/LC3
|
CF8M
|
CF8C
|
|
3
|
DISC
|
A217-CA15
|
A217-WC6
|
A217-WC9
|
A217-C5
|
A352-LCB/LC2/LC3
|
CF8M
|
CF8C
|
|
4
|
BODY SEAT RING
|
A105 + HARD FACE
|
A182-F11
|
A182-F22
|
A182-F5Q
|
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-LC1/LC2/LC3
|
CF8M
|
CF8C
|
|
8
|
SET BOLT
|
AISI 304
|
A193-B8
|
A193-B8
|
|
9
|
DISC COVER
|
AISI 304
|
CF8M
|
CF8C
|
|
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
|
|
21
|
PLUG GASKET
|
COMMERCIAL
|
|
22
|
GASKET
|
COMMERCIAL
|
|
25
|
PLUG
|
A194-2H
|
A194-2H
|
A194-2H
|
A194-2H
|
A194-4
|
F316
|
F316
|
|
33
|
RETAINER
|
A276-410
|
A276-410
|
A276-410
|
A276-410
|
A276-304
|
F316
|
F347
|
|
36
|
BONNET CLAMP
|
A216-WCB
|
A217-WC6
|
A217-WC9
|
A217-C5
|
A352-LCB/LC2/LC3
|
CF8M
|
CF8C
|
|
37
|
GASKET SPACER
|
A276-410
|
A276-410
|
A276-410
|
A276-410
|
A276-304
|
F316
|
F347
|
Main DIMENSIONS
CLASS 600 - Cast & Stainless Steel Pressure Seal 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
|
7.0
|
8.5
|
10.0
|
12.0
|
18.0
|
23.0
|
28.0
|
32.0
|
35.0
|
39.0
|
43.0
|
47.0
|
55.0
|
|
mm
|
178
|
216
|
254
|
305
|
457
|
584
|
711
|
813
|
889
|
991
|
1092
|
1194
|
1397
|
|
A2
(RTJ)
|
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
|
|
mm
|
292
|
330
|
356
|
432
|
559
|
660
|
787
|
838
|
889
|
991
|
1092
|
1194
|
1397
|
|
A3
(BW)
|
in
|
11.6
|
13.1
|
14.1
|
17.1
|
22.1
|
26.1
|
31.1
|
33.1
|
35.1
|
39.1
|
43.1
|
47.3
|
55.4
|
|
mm
|
295
|
333
|
359
|
435
|
562
|
664
|
791
|
841
|
892
|
994
|
1095
|
1200
|
1407
|
|
H2
|
in
|
9.5
|
10.4
|
10.6
|
12.5
|
15.7
|
23.1
|
23.9
|
27.4
|
29.5
|
28.7
|
28.7
|
32.2
|
37.4
|
|
mm
|
241
|
264
|
270
|
318
|
400
|
587
|
606
|
695
|
749
|
730
|
730
|
819
|
949
|
|
WGT
(RF)
|
lb
|
60
|
77
|
99
|
187
|
419
|
772
|
1103
|
1478
|
1940
|
2536
|
3264
|
4145
|
5733
|
|
kg
|
27
|
35
|
45
|
85
|
190
|
350
|
500
|
670
|
880
|
1150
|
1480
|
1880
|
2600
|
|
WGT
(BW)
|
lb
|
40
|
55
|
71
|
121
|
287
|
573
|
816
|
1081
|
1455
|
1874
|
2426
|
3286
|
4498
|
|
kg
|
18
|
25
|
32
|
55
|
130
|
260
|
370
|
490
|
660
|
850
|
1100
|
1490
|
2040
|
CLASS 900 - Cast & Stainless Steel Pressure Seal 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
|
8.5
|
10.0
|
12.0
|
14.0
|
20.0
|
26.0
|
31.0
|
36.0
|
39.0
|
43.0
|
46.5
|
50.5
|
59.5
|
|
mm
|
216
|
254
|
305
|
356
|
508
|
660
|
787
|
914
|
991
|
1092
|
1181
|
1283
|
1511
|
|
A2
(RTJ)
|
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
|
|
mm
|
368
|
419
|
381
|
457
|
610
|
737
|
838
|
965
|
1029
|
1130
|
1219
|
1321
|
1549
|
|
A3
(BW)
|
in
|
14.6
|
16.6
|
15.1
|
18.1
|
24.1
|
29.1
|
33.1
|
38.1
|
40.9
|
44.9
|
48.5
|
52.5
|
61.8
|
|
mm
|
371
|
422
|
384
|
460
|
613
|
740
|
841
|
968
|
1038
|
1140
|
1232
|
1333
|
1568
|
|
H2
|
in
|
9.5
|
10.4
|
10.6
|
12.5
|
15.7
|
23.1
|
23.9
|
27.4
|
29.5
|
28.7
|
33.5
|
33.3
|
37.8
|
|
mm
|
241
|
264
|
270
|
318
|
400
|
587
|
606
|
695
|
749
|
730
|
851
|
864
|
959
|
|
WGT
(RF)
|
lb
|
88
|
121
|
115
|
232
|
507
|
1257
|
1874
|
2867
|
3418
|
3638
|
5072
|
6615
|
9041
|
|
kg
|
40
|
55
|
52
|
105
|
230
|
570
|
850
|
1300
|
1550
|
1650
|
2300
|
3000
|
4100
|
|
WGT
(BW)
|
lb
|
44
|
71
|
66
|
143
|
353
|
970
|
1522
|
2249
|
2690
|
2977
|
4079
|
5292
|
6395
|
|
kg
|
20
|
32
|
30
|
65
|
160
|
440
|
690
|
1020
|
1220
|
1350
|
1850
|
2400
|
2900
|
CLASS 1500 - Cast & Stainless Steel Pressure Seal 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
|
8.5
|
10.0
|
12.0
|
16.0
|
22.0
|
28.0
|
34.0
|
39.0
|
42.0
|
47.0
|
53.0
|
58.0
|
64.0
|
|
mm
|
216
|
254
|
305
|
406
|
559
|
711
|
864
|
991
|
1067
|
1194
|
1346
|
1473
|
1626
|
|
A2
(RTJ)
|
in
|
14.5
|
16.5
|
18.5
|
21.5
|
27.8
|
32.8
|
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
|
|
A3
(BW)
|
in
|
14.6
|
16.6
|
18.6
|
21.6
|
28.0
|
33.1
|
39.4
|
45.1
|
50.3
|
55.4
|
61.4
|
66.4
|
77.6
|
|
mm
|
371
|
422
|
473
|
549
|
711
|
841
|
1000
|
1146
|
1276
|
1407
|
1559
|
1686
|
1972
|
|
H2
|
in
|
9.5
|
10.4
|
10.6
|
12.5
|
15.7
|
18.9
|
23.3
|
25.4
|
28.0
|
29.5
|
34.6
|
37.4
|
43.3
|
|
mm
|
241
|
264
|
270
|
318
|
400
|
479
|
591
|
645
|
711
|
749
|
880
|
949
|
1099
|
|
WGT
(RF)
|
lb
|
88
|
121
|
221
|
309
|
882
|
1345
|
2315
|
3418
|
4631
|
5733
|
7277
|
9261
|
13230
|
|
kg
|
40
|
55
|
100
|
140
|
400
|
610
|
1050
|
1550
|
2100
|
2600
|
3300
|
4200
|
6000
|
|
WGT
(BW)
|
lb
|
44
|
71
|
88
|
154
|
617
|
1058
|
1632
|
2426
|
3109
|
3528
|
4631
|
3733
|
7718
|
|
kg
|
20
|
32
|
40
|
70
|
280
|
480
|
740
|
1100
|
1410
|
1600
|
2100
|
2600
|
3500
|
CLASS 2500 - Cast & Stainless Steel Pressure Seal Check Valves
DIMENSIONS & WEIGHTS
|
SIZE
|
in
|
2
|
2.5
|
3
|
4
|
6
|
8
|
10
|
12
|
14
|
16
|
18
|
|
mm
|
51
|
64
|
76
|
102
|
152
|
203
|
254
|
305
|
356
|
406
|
457
|
|
A1
(RF)
|
in
|
11.0
|
13.0
|
14.5
|
18.0
|
24.0
|
30.0
|
36.0
|
41.0
|
44.0
|
49.0
|
55.0
|
|
mm
|
279
|
330
|
368
|
457
|
610
|
762
|
914
|
1041
|
1118
|
1245
|
1397
|
|
A2
(RTJ)
|
in
|
17.8
|
20.0
|
22.8
|
26.5
|
36.0
|
40.3
|
50.0
|
56.0
|
62.0
|
68.0
|
-
|
|
mm
|
451
|
508
|
578
|
673
|
914
|
1022
|
1270
|
1422
|
1575
|
1727
|
-
|
|
A3
(BW)
|
in
|
17.9
|
20.3
|
23.0
|
26.9
|
36.5
|
40.9
|
50.9
|
56.9
|
-
|
-
|
-
|
|
mm
|
454
|
514
|
584
|
683
|
927
|
1038
|
1292
|
1445
|
-
|
-
|
-
|
|
H2
|
in
|
9.6
|
10.4
|
10.6
|
12.5
|
15.7
|
22.0
|
24.8
|
27.5
|
33.9
|
35.4
|
39.4
|
|
mm
|
245
|
264
|
270
|
318
|
400
|
559
|
629
|
699
|
860
|
899
|
1000
|
|
WGT
(RF)
|
lb
|
187
|
260
|
342
|
628
|
1654
|
2977
|
4741
|
6615
|
9217
|
11157
|
16493
|
|
kg
|
85
|
118
|
155
|
285
|
750
|
1350
|
2150
|
3000
|
4180
|
5060
|
7480
|
|
WGT
(BW)
|
lb
|
110
|
154
|
187
|
364
|
1014
|
1985
|
2867
|
3969
|
5402
|
7056
|
8930
|
|
kg
|
50
|
70
|
85
|
165
|
460
|
900
|
1300
|
1800
|
2450
|
3200
|
4050
|