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

18

450

20

500

In

mm

ANSI Class 900Lb
L/L1

(RF/BW)

14.50

368

16.50

419

15.50

381

18.00

457

24.00

610

29.00

737

33.00

838

38.00

968

40.50

1029

44.50

1130

48.00

1219

52.00

1321

In

mm

L2

(RTJ)

14.62

371

16.62

422

15.12

384

18.12

460

24.12

613

29.12

740

33.12

841

26.50

968

40.88

1038

44.88

1140

48.50

1232

52.50

1334

In

mm

H 9.50

240

10.00

256

11.00

278

12.50

320

18.12

460

22.00

560

24.00

610

26.50

675

29.38

745

32.00

815

33.50

850

38.75

985

In

mm

(d) 47 57 72 98 164 190 238 282 311 355 400 444 mm
WT

(kg)

37

21

54

25

68

34

109

58

195

115

321

194

481

290

711

461

956

597

1468

950

1870

1210

2316

1533

RF

BW

 

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