Applicable standards:

STEEL CHECK VALVES, API6D/BS1868
STEEL CHECK VALVES,ISO 14313
STEEL VALVES,ASME B16.34
FACE TO FACE,ASME B16.10
END FLANGES,ASME B16.5
BUTTWELDING ENDS, ASME B16.25
INSPECTION AND TEST, API 598/API 6D

Design description:

BB, BOLTED BONNET CAP
SWING TYPE, ANTI-ROTATION DISC
RENEWABLE SEAT RINGS
NON-PENETRATE DISC SHAFT
HORIZONTAL OR VERTICAL SERVICE
FLANGED OR BUTTVVELDING ENDS

Materials of Parts

NO Part Name ASTM Material
Carbon Steel 1 ¼Cr – ½Mo Carbon Steel
1 Body A216-WCB A217-WC6 A352-LCB
2 Bonnet Cap A216-WCB A217-WC6 A352-LCB
3 Dise1) A105-CR13 A182-F11+HF A350-LF2+CR13
4 Hinge A216-WCB A217-WC6 A352-LCB
5 Support A216-WCB A217-WC6 A352-LCB
6 Seat Ring A105+CR13 A182-F11+HF A350-LF2+CR13
7 Hinge Pin A276-420 A276-304 A276-420
8 Disc Washer Carbon Steel A276-304 Carbon Steel
9 Disc Nut Carbon Steel A194-7 Carbon Steel
10 Disc Nut Pin Carbon Steel A276-420 Carbon Steel
11 Bonnet Gasket Spiral Wound (Graphite+304)
12 Bonnet Stud A193-B7 A193-B16 A320-L7
13 Bonnet Stut Nut A194-2H A194-7 A196-4
14 Eyebolt2) Carbon Steel
Note:
1).Cast steel disc for NPS 4 ” and above.
2).NPS 6 ” & larger.
3).Disc and seat ring may either be solid facing material or a base material equal to or
better than the body/bonnet material with facing as shown.

Diamensions data

NPS

DN

2

50

2 ½

65

3

80

4

100

6

150

8

200

10

250

12

300

14

350

16

400

18

450

20

500

24

600

26

650

28

700

30

750

36

900

In

mm

ANSI Class 300Lb
L/L1

(RF/BW)

10.50

267

11.50

292

12.50

318

14.00

356

17.50

445

21.00

533

24.50

622

28.00

711

33.00

838

34.00

864

38.50

978

40.00

1016

53.00

1346

53.00

1346

59.00

1499

62.75

1594

82.00

2083

In

mm

L2

(RTJ)

11.12

283

12.12

308

13.12

333

14.62

371

18.12

460

21.62

549

25.12

638

28.62

727

33.62

854

34.62

879

39.12

994

40.75

1035

53.88

1368

54.00

1372

60.00

1524

63.75

1619

-

-

In

mm

H 6.00

152

6.50

165

6.88

175

8.00

204

11.50

292

13.88

353

15.38

390

17.00

432

18.75

475

20.62

525

22.88

582

24.62

627

34.75

883

35.88

910

37.00

940

38.62

980

48.00

1220

In

mm

(d) 50 63 76 100 150 200 250 300 336 387 431 482 584 635 686 737 876 mm
WT

(kg)

16

11

23

13

29

18

46

31

82

61

136

103

204

155

302

245

405

315

625

503

730

593

985

812

1115

895

1465

1205

1840

1525

2290

1895

3180

2395

RF

BW

 

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