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BLIND FLANGES

FLANGE BLIND FLANGES CLASS 150 LB ASTM A182/ANSI B16.5
PIPE FLANGE DATA

RAISED

FACE

DRILLING DATA

Nominal Pipe

Size

(inches)

Outside

Diameter

A C G H I J

Overall

Diameter

Flange

Thickness Min

Face

Diameter

Number

Of Holes

Bolt Hole

Diameter

Diameter of

Circles of Holes

in

mm

in

mm

in

mm

in

mm

 

in

mm

in

mm

1/2

0.840

21.30

3.500

88.90

0.440

11.20

1.380

35.10

4

0.620

15.70

2.380

60.45

3/4

1.050

26.70

3.880

98.60

0.500

12.70

1.690

42.90

4

0.620

15.70

2.750

69.85

1

1.315

33.40

4.250

108.0

0.560

14.20

2.000

50.80

4

0.620

15.70

3.120

79.25

1-1/4

1.660

42.20

4.620

117.3

0.620

15.70

2.500

63.50

4

0.620

15.70

3.500

88.90

1-1/2

1.900

48.30

5.000

127.0

0.690

17.50

2.880

73.15

4

0.620

15.70

3.880

98.60

2

2.375

60.30

6.000

152.4

0.750

19.10

3.620

91.90

4

0.750

19.10

4.750

120.7

2-1/2

2.875

73.00

7.000

177.8

0.880

22.40

4.120

104.6

4

0.750

19.10

5.500

139.7

3

3.500

88.90

7.500

190.5

0.940

23.90

5.000

127.0

4

0.750

19.10

6.000

152.4

3-1/2

4.000

101.6

8.500

215.9

0.940

23.90

5.500

139.7

8

0.750

19.10

7.000

177.8

4

4.500

114.3

9.000

228.6

0.940

23.90

6.190

157.2

8

0.750

19.10

7.500

190.5

5

5.563

141.3

10.00

254.0

0.940

23.90

7.310

185.7

8

0.880

22.40

8.500

215.9

6

6.625

168.3

11.00

279.4

1.000

25.40

8.500

215.9

8

0.880

22.40

9.500

241.3 

8

8.625

219.1

13.50

342.9

1.120

28.40

10.62

269.7

8

0.880

22.40

11.75

298.5

10

10.75

273.0

16.00

406.4

1.190

30.20

12.75

323.8

12

1.000

25.40

14.25

362.0

12

12.75

323.8

19.00

482.6

1.250

31.75

15.00

381.0

12

1.000

25.40

17.00

431.8

14

14.00

355.6

21.00

533.4

1.380

35.10

16.25

412.8

12

1.120

28.40

18.75

476.3

16

16.00

406.4

23.50

596.9

1.440

36.60

18.50

469.9

16

1.120

28.40

21.25

539.8

18

18.00

457.2

25.00

635.0

1.560

39.60

21.00

533.4

16

1.250

31.75

22.75

577.9

20

20.00

508.0

27.50

698.5

1.690

42.90

23.00

584.2

20

1.250

31.75

25.00

635.0

24

24.00

609.6

32.00

812.8

1.880

47.80

27.25

692.2

20

1.380

35.10

29.50

749.3



FLANGE BLIND FLANGES CLASS 300 LB ASTM A182/ANSI B16.5
PIPE FLANGE DATA

RAISED

FACE

DRILLING DATA

Nominal Pipe

Size

(inches)

Outside

Diameter

A C G H I J

Overall

Diameter

Flange

Thickness Min

Face

Diameter

Number

Of Holes

Bolt Hole

Diameter

Diameter of

Circles of Holes

in

mm

in

mm

in

mm

in

mm

 

in

mm

in

mm

1/2

0.84

21.30

3.75

95.20

0.560

14.20

1.380 

35.10

4

0.620

15.70

2.620

66.55

3/4

1.050 

26.70

4.620

117.3

0.620

15.70

1.690

42.90

4

0.750

19.10

3.250

82.50

1

1.315

33.40

4.880

123.9

0.690

17.50

2.000

50.80

4

0.750

19.10

3.500

88.90

1-1/4

1.660

42.20

5.250

133.3

0.750

19.00

2.500

63.50

4

0.750

19.10

3.880

98.60

1-1/2

1.900

48.30

6.120

155.4

0.810

20.60

2.880

73.15

4

0.880

22.40

4.500

114.3

2

2.375

60.30

6.500

165.1

0.880

22.30

3.620

91.90

8

0.750

19.10

5.000

120.7

2-1/2

2.875

73.00

7.500

190.5

1.000

25.40

4.120

104.6

8

0.880

22.40

5.880

149.4

3

3.500

88.90

8.250

209.5

1.120

28.40

5.000

127.0

8

0.880

22.40

6.620

168.1

3-1/2

4.000

101.6

9.000

228.6

1.190

30.20

5.500

139.7

8

0.880

22.40

7.250

184.2

4

4.500

114.3

10.00

254.0

1.250

31.70

6.190

157.2

8

0.880

22.40

7.880

200.1

5

5.563

141.3

11.00

279.4 

1.380

35.00

7.310

185.7

8

0.880

22.40

9.250

234.9

6

6.625

168.3

12.50

317.5

1.440

36.50

8.500

215.9

12

0.880

22.40

10.62

269.7

8

8.625

219.1

15.00

381.0

1.620

41.10

10.62

269.7

12

1.000

25.40

13.00

330.2

10

10.75

273.0

17.50

444.5

1.880

47.70

12.75

323.8

16

1.120

28.40

15.25

387.3

12

12.75

323.8

20.50

520.7

2.000

50.80

15.00

381.0

16

1.250

31.70

17.75

450.8

14

14.00

355.6

23.00

584.2

2.120

53.80 

16.25

412.8

20

1.250

31.70

20.25

514.4

16

16.00

406.4

25.50

647.7

2.250

57.15

18.50

469.9

20

1.380

35.00

22.50

571.5

18

18.00

457.2

28.00

711.2

2.380

60.45

21.00

533.4

24

1.380

35.00

24.75

628.7

20

20.00

508.0

30.50

774.7

2.500

63.50

23.00

584.2

24

1.380

35.00

27.00

685.7

24

24.00

609.6

36.00

914.4

2.750

69.85

  27.25

692.2

24

1.620

41.00

32.00

812.8