ANSI FLANGE 300LB

 (Dimensions in mm)

Nominal
size
(B)

O

C

X

R

A

YS

YW

YL

BS

BW

BL

1/2

95.3

14.3

38.1

34.9

21.3

22.2

52.4

22.2

22.4

15.7

22.9

3/4

117.5

15.9

47.6

42.9

26.7

25.4

57.2

25.4

27.7

20.8

28.2

1

123.8

17.5

54.0

50.8

33.5

27.0

61.9

27.0

34.5

26.7

35.1

1 1/4

133.4

19.1

63.5

63.5

42.2

27.0

65.1

27.0

43.2

35.1

43.7

1 1/2

155.6

20.7

69.9

73.0

48.3

30.2

68.3

30.2

49.5

40.9

50.0

2

165.1

22.3

84.1

92.1

60.5

33.3

69.9

33.3

62.0

52.6

62.5

2 1/2

190.5

25.4

100.0

104.8

73.2

38.1

76.2

38.1

74.7

62.7

75.4

3

209.6

28.6

117.5

127.0

88.9

42.9

79.4

42.9

90.7

78.0

91.4

3 1/2

228.6

30.2

133.4

139.7

101.6

44.5

81.0

44.5

103.4

90.2

104.1

4

254.0

31.8

146.1

157.2

114.3

47.6

85.7

47.6

116.1

102.4

116.8

5

279.4

35.0

177.8

185.7

141.2

50.8

98.4

50.8

143.8

128.3

144.5

6

317.5

36.6

206.4

215.9

168.4

52.4

98.4

52.4

170.7

154.2

171.5

8

381.0

41.3

260.4

269.9

219.2

61.9

111.1

61.9

221.5

202.7

222.3

10

444.5

47.7

320.7

323.9

273.1

66.7

117.5

95.3

276.4

254.5

277.4

12

520.7

50.8

374.7

381.0

323.9

73.0

130.2

101.6

327.2

304.8

328.2

14

584.2

54.0

425.5

412.8

355.6

76.2

142.9

111.0

359.2

336.6

360.2

16

647.7

57.2

482.6

469.9

406.4

82.6

146.1

120.7

410.5

387.4

411.2

18

711.2

60.4

533.4

533.4

457.2

88.9

158.8

130.2

461.8

438.2

462.3

20

774.7

63.5

587.4

584.2

508.0

95.3

161.9

139.7

513.1

489.0

514.4

24

914.4

69.9

701.7

692.2

609.6

106.4

168.3

152.4

616.0

590.6

616.0

 

h

r

T

D

Diameter
of Bolt
Circle

Number
of
Bolts

Diameter
of
Bolts

Diameter
of Bolt
Holes

Q

kg / pc

Nominal
Size
(B)

SO

WN

BL

9

3.2

15.9

9.5

66.7

4

1/2

15.9

23.6

0.6

0.8

0.9

1/2

9

3.2

15.9

11.1

82.6

4

5/8

19.1

29.0

1.1

1.3

1.4

3/4

9

3.2

17.5

12.7

88.9

4

5/8

19.1

35.8

1.4

1.7

1.6

1

9

4.8

20.6

14.3

98.4

4

5/8

19.1

44.5

1.8

2.1

2.0

1 1/4

9

6.4

22.2

15.9

114.3

4

3/4

22.2

50.5

2.5

3.0

2.7

1 1/2

9

7.9

28.6

17.5

127.0

8

5/8

19.1

63.5

3.3

3.6

3.6

2

12

7.9

31.8

19.1

149.2

8

3/4

22.2

76.2

4.2

5.3

5.4

2 1/2

12

9.5

31.8

20.6

168.3

8

3/4

22.2

92.2

5.9

7.2

7.3

3

12

9.5

36.5

-

184.2

8

3/4

22.2

104.9

7.4

9.2

10.0

3 1/2

14

11.1

36.5

-

200.0

8

3/4

22.2

117.6

9.7

11.9

12.3

4

18

11.1

42.9

-

235.0

8

3/4

22.2

144.5

13.2

16.4

16.8

5

18

12.7

46.0

-

269.9

12

3/4

22.2

171.5

15.9

20.8

22.7

6

20

12.7

50.8

-

330.2

12

7/8

25.4

222.3

24.7

32.2

36.7

8

20

12.7

55.6

-

387.4

16

1

28.6

276.4

35.7

46.6

56.7

10

25

12.7

60.3

-

450.9

16

1 1/8

31.8

328.7

51.6

69.0

83.9

12

25

12.7

63.5

-

514.4

20

1 1/8

31.8

360.4

69.8

93.4

113.4

14

25

12.7

68.3

-

571.5

20

1 1/4

34.9

411.2

87.6

119.6

133.8

16

30

12.7

69.9

-

628.7

24

1 1/4

34.9

462.0

108.7

150.5

179.2

18

30

12.7

73.0

-

685.8

24

1 1/4

34.9

512.8

134.5

184.4

229.1

20

30

12.7

82.6

-

812.8

24

1 1/2

41.3

614.4

203.0

274.7

358.3

24