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+HF A182-F11+HF A182-F11+HF
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 Steel Ring 304SS Ring Steel Ring
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.

Dimensions Data

NPS

DN

2

50

2 ½

65

3

80

4

100

6

150

8

200

10

250

12

300

14

350

16

400

2

50

2 ½

65

3

80

4

100

6

150

8

200

10

250

12

300

In

mm

ANSI Class 1500Lb ANSI Class 2500Lb
L/L1

(RF/BW)

14.50

368

16.50

419

18.50

470

21.50

546

27.75

705

32.75

832

39.00

991

44.50

1350

49.50

1257

54.50

1384

17.75

451

20.00

508

22.75

578

26.50

673

36.00

914

40.25

1022

50.00

1270

56.00

1422

In

mm

L2

(RTJ)

14.62

371

16.62

422

18.62

473

21.62

549

28.00

711

33.12

841

39.38

1000

45.12

1146

50.25

1276

55.38

1407

17.88

454

20.25

514

23.00

584

26.88

683

36.50

927

40.88

1038

50.88

1292

56.88

1445

In

mm

H 9.50

240

10.00

256

13.00

330

14.75

375

18.88

480

23.50

595

26.00

660

29.12

740

30.88

785

32.88

835

10.75

275

13.25

335

13.75

350

15.12

385

19.50

495

24.62

625

28.00

712

35.62

905

In

mm

(d) 47 57 69 92 136 177 222 263 288 330 38 47 57 72 111 146 184 218 mm
WT

(kg)

40

29

63

47

70

49

115

84

250

152

470

310

740

470

1100

710

1410

910

1600

1100

50

35

76

55

85

68

165

115

460

225

900

580

1300

860

1800

1150

RF

BW

 

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