Properties of Flanges Dimension 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