Chemtech Alloys Pvt Ltd



Stainless Steel Flanges, Carbon Steel Forged Flanges 15 NB To 750 NB, 150, 300, 600, 900 & 1500 LBS, Flanges A-105 ANSI B16.5 Flanges, SORF Flanges, WNRF Flanges, BLRF Flanges, SWRF Flanges, LAP Joint Flanges, Threaded Flanges, Reducing Flanges, Spectacle Flanges, Plate Flanges, Nickel Alloy Flanges Non Ferrous Metal Flanges Alloy Steel Flanges


FLANGE DIMENSIONS BS 10

TABLE D
For Working Steam Pressure upto 50 lbs per sq. Inch

Nominal Pipe Size

O. D. of pipe

O. D.

P. C. D.

No. of bolt

Dia of bolt

Thickness

1/2"

21.3

95.3

66.7

4

12.7

4.8

3/4"

26.7

101.6

73.0

4

12.7

4.8

1"

33.4

114.3

82.6

4

12.7

4.8

1.1/4"

42.2

120.7

87.3

4

12.7

6.4

1.1/2"

48.3

133.4

98.4

4

12.7

6.4

2"

60.3

152.4

114.3

4

15.9

7.9

2.1/2"

73.0

165.1

127.0

4

15.9

7.9

3"

88.9

184.2

146.1

4

15.9

9.5

3.1/2"

101.6

203.2

165.1

4

15.9

9.5

4"

114.3

215.9

177.8

4

15.9

9.5

5"

141.3

254.0

209.6

8

15.9

12.7

6"

168.3

279.4

228.6

8

15.9

12.7

7"

190.5

304.8

260.4

8

15.9

12.7

8"

219.1

336.6

292.1

8

15.9

12.7

9"

244.5

368.3

323.9

8

15.9

15.9

10"

273.0

406.4

355.6

8

19.1

15.9

12"

323.9

457.2

406.4

12

19.1

15.9

14"

355.6

527.1

469.9

12

22.2

19.1

16"

406.4

577.9

520.7

12

22.2

19.1

18"

457.2

641.4

584.2

12

22.2

22.2

20"

508.0

704.9

641.4

16

22.5

25.4

24"

609.6

825.5

755.7

16

25.4

28.6

TABLE E
For Working Steam Pressure upto 100 lbs per sq. Inch

Nominal Pipe Size

O. D. of pipe

O. D.

P. C. D.

No. of bolt

Dia of bolt

Thickness

1/2"

21.3

95.3

66.3

4

12.7

6.4

3/4"

26.7

101.6

73.0

4

12.7

6.4

1"

33.4

114.3

82.6

4

12.7

7.1

1.1/4"

42.2

120.7

87.3

4

12.7

7.9

1.1/2"

48.3

133.4

98.4

4

12.7

8.7

2"

60.3

152.4

114.3

4

15.9

9.5

2.1/2"

73.0

165.1

127.0

4

15.9

10.3

3"

88.9

184.2

146.1

4

15.9

11.1

3.1/2"

101.6

203.2

165.1

8

15.9

11.9

4"

114.3

215.9

177.8

8

15.9

12.7

5"

141.3

254.0

209.6

8

15.9

14.3

6"

168.3

279.4

228.6

8

19.1

17.5

7"

190.5

304.8

260.4

8

19.1

19.1

8"

219.1

336.6

292.1

8

19.1

19.1

9"

244.5

368.3

323.9

12

19.1

20.6

10"

273.0

406.4

355.6

12

19.1

22.2

12"

323.9

257.2

406.4

12

22.2

25.4

14"

355.6

527.2

469.9

12

22.2

25.4

16"

406.4

577.9

520.7

12

22.2

25.4

18"

457.2

641.4

584.2

16

22.2

28.6

20"

508.0

704.9

647.4

16

22.2

31.8

24"

609.6

825.5

755.7

16

25.4

38.1

TABLE F
For Working Steam Pressure above 100 lbs and upto 150 lbs per sq. Inch

Nominal Pipe Size

O. D. of pipe

O. D.

P. C. D.

No. of bolt

Dia of bolt

Thickness

1/2"

21.3

95.3

66.7

4

12.7

9.5

3/4"

26.7

101.6

73.0

4

12.7

9.5

1"

33.4

120.7

87.3

4

15.9

9.5

1.1/4"

42.2

133.4

98.4

4

15.9

12.7

1.1/2"

48.3

139.7

104.8

4

15.9

12.7

2"

60.3

165.1

127.0

4

15.9

15.9

2.1/2"

73.0

184.2

146.1

8

15.9

15.9

3"

88.9

203.2

165.1

8

15.9

15.9

3.1/2"

101.6

215.9

177.8

8

15.9

19.1

4"

114.3

228.6

190.5

8

15.9

19.1

5"

141.3

279.4

235.0

8

19.1

22.2

6"

168.3

304.8

260.4

12

19.1

22.2

7"

190.5

336.6

292.1

12

19.1

22.2

8"

219.1

368.3

323.9

12

19.1

25.4

9"

244.5

406.4

355.6

12

22.2

25.4

10"

273.0

431.8

381.0

12

22.2

25.4

12"

323.9

489.0

438.2

16

22.2

28.6

14"

355.6

552.5

495.3

16

25.4

31.8

16"

406.4

609.6

552.5

20

25.4

31.8

18"

457.2

673.1

609.6

20

28.6

34.9

20"

508.0

736.6

673.1

24

28.6

38.1

24"

609.6

850.9

781.1

24

318

41.3

TABLE H
For Working Steam Pressure above 150 lbs and upto 250 lbs per sq. Inch

Nominal Pipe Size

O. D. of pipe

O. D.

P. C. D.

No. of bolt

Dia of bolt

Thickness

1/2"

21.3

114.3

82.6

4

15.9

12.7

3/4"

26.7

114.3

82.6

4

15.9

12.7

1"

33.4

120.7

87.3

4

15.9

14.3

1.1/4"

42.2

133.4

98.4

4

15.9

17.5

1.1/2"

48.3

139.7

104.8

4

15.9

17.5

2"

60.3

165.1

127.0

4

15.9

19.1

2.1/2"

73.0

184.2

146.1

8

15.9

19.1

3"

88.9

203.2

165.1

8

15.9

22.2

3.1/2"

101.6

215.9

177.8

8

15.9

22.2

4"

114.3

228.6

190.5

8

15.9

25.4

5"

141.3

279.4

235.0

8

19.1

28.6

6"

168.3

304.8

260.4

12

19.1

28.6

7"

190.5

336.6

292.1

12

19.1

31.8

8"

219.1

368.3

323.9

12

19.1

31.8

9"

244.5

406.4

355.6

12

22.2

34.9

10"

273.0

431.8

381.0

12

22.2

34.9

12"

323.9

489.0

438.2

16

22.2

38.1

14"

355.6

552.5

495.3

16

25.4

41.3

16"

406.4

609.6

552.5

20

25.4

44.5

18"

457.2

673.1

609.6

20

28.6

47.6

20"

508.0

736.6

673.1

24

28.6

50.8

24"

609.6

850.9

781.1

24

31.8

57.2