Flanges Dimensions

Pipe Size (inches)

O

Q

R

X

No. of Holes

Dia. of Bolt Holes

Bolt Circle Dia

YY

H

J

Y

B

R

YY

BB

Z

1/2

88.9

11.2

35.1

30.2

4

15.7

60.5

47.8

21.3

15.7

15.7

22.4

3.0

15.7

22.9

9.7

3/4

98.6

12.7

42.9

38.1

4

15.7

69.9

52.3

26.7

20.8

15.7

27.7

3.0

15.7

28.2

11.2

1

108.0

14.2

50.8

49.3

4

15.7

79.2

55.6

33.5

26.7

17.5

34.5

3.0

17.5

35.1

12.7

1 1/4

117.3

15.7

63.5

58.7

4

15.7

88.9

57.2

42.2

35.1

20.6

43.2

4.8

20.6

43.7

14.2

1 1/2

127.0

17.3

73.2

65.0

4

15.7

98.6

62.0

48.3

40.9

22.4

49.5

6.4

22.4

50.0

15.7

2

152.4

19.1

91.9

77.7

4

19.1

120.7

63.5

60.5

52.6

25.4

62.0

7.9

25.4

62.5

17.5

21/2

177.8

22.4

104.6

90.4

4

19.1

139.7

69.9

73.2

62.7

28.4

74.7

7.9

28.4

75.4

19.1

3

190.5

23.9

127.0

108.0

4

19.1

152.4

69.9

88.9

78.0

30.2

90.7

9.7

30.2

91.4

20.6

31/2

215.9

23.9

139.7

122.2

8

19.1

177.8

71.4

101.6

90.2

31.8

1033.8

9.7

31.8

104.1

4

228.6

23.9

157.2

134.9

8

19.1

190.5

76.2

114.3

102.4

33.3

116.1

11.2

33.3

116.8

5

254.0

23.9

185.7

163.6

8

22.4

215.9

88.9

141.2

128.3

36.6

143.8

11.2

36.6

144.5

6

279.4

25.4

215.9

192.0

8

22.4

241.3

88.9

168.4

154.2

39.6

170.7

12.7

39.6

171.5

8

342.9

28.4

269.7

246.1

8

22.4

298.5

101.6

219.2

202.7

44.5

221.5

12.7

44.5

222.3

10

406.4

30.2

323.9

304.8

12

25.4

362.0

101.6

273.1

254.5

49.3

276.4

12.7

49.3

277.4

12

482.6

>31.8

381.0

365.3

12

25.4

431.8

114.3

323.9

304.8

55.6

327.2

12.7

55.6

328.2

14

533.4

>35.1

412.8

400.1

12

28.4

476.3

127.0

355.6

To Be Specified by the Purchaser

57.2

359.2

12.7

79.2

360.2

16

596.9

36.6

469.9

457.2

16

28.4

539.8

127.0

406.4

63.5

410.5

12.7

87.4

411.2

18

635.0

39.6

533.4

505.0

16

31.8

577.9

139.7

457.2

68.3

461.8

12.7

96.8

462.3

20

698.5

42.9

584.2

558.8

20

31.8

635.0

144.5

508.0

73.2

513.1

12.7

103.1

514.4

24

812.8

47.8

692.2

663.4

20

35.1

749.3

152.4

609.6

82.6

616.0

12.7

111.3

616.0