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Drawing And Dimensions For ANSI 300 Flange

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Drawing And Dimensions For ANSI 300 Flange

Nom. Pipe Size

O

Q*

R

X

No. and** Dia of Bolt Holes

Bolt Circle Dia.

YY*

H

J

Y*

B

R

YV

BB

Z

C

T

½

3.75

0.56

1.38

1.5.

4-0.62

2.62

2.06

0.84

0.62

0.88

0.88

0.12

0.88

0.9

0.38

0.93

0.62

¾

4.62

0.62

1.69

1.88

4-0.75

3.25

2.25

1.05

0.82

1.0

1.09

0.12

1.0

1.11

0.44

1.14

0.62

1.0

4.88

0.69

2.0

2.12

4-0.75

3.5

2.44

1.32

1.05

1.06

1.36

0.12

1.06

1.38

0.5

1.41

0.69

5.25

0.75

2.5

2.5

4-0.75

3.88

2.56

1.66

1.38

1.06

1.7

0.19

1.06

1.72

0.56

1.75

0.81

6.12

0.81

2.88

2.75

4-0.88

4.5

2.69

1.9

1.61

1.19

1.95

0.25

1.19

1.97

0.62

1.99

0.88

2.0

6.5

0.88

3.62

3.31

8-0.75

5.0

2.75

2.38

2.07

1.31

2.44

0.31

1.31

2.46

0.69

2.5

1.12

7.5

1.0

4.12

3.94

8-0.88

5.88

3.0

2.88

2.47

1.5

2.94

0.31

1.5

2.97

0.75

3.0

1.25

3.0

8.25

1.12

5.0

4.62

8-0.88

6.62

3.12

3.5

3.07

1.69

3.57

0.38

1.69

3.6

0.81

3.63

1.25

9

1.19

5.5

5.25

8-0.88

7.25

3.19

4

3.55

1.75

4.07

0.38

1.75

4.1

 

4.13

1.44

4

10

1.25

6.19

5.75

8-0.88

7.88

3.38

4.5

4.03

1.88

4.57

0.44

1.88

4.6

 

4.63

1.44

5.0

11

1.38

7.31

7

8-0.88

9.25

3.88

5.56

5.05

2.0

5.66

0.44

2.0

5.69

 

5.69

1.69

6

12.5

1.44

8.5

8.12

12-0.88

10.62

3.88

6.63

6.07

2.06

6.72

0.5

2.06

6.75

 

6.75

1.81

8

15

1.62

10.62

10.25

12-1.00

13

4.38

8.63

7.98

2.44

8.72

0.5

2.44

8.75

 

8.75

2.0

10

17.5

1.88

12.75

12.62

16-1.12

15.25

4.62

10.75

10.02

2.62

10.88

0.5

3.75

10.92

 

10.88

2.19

12

20.5

2.0

15

14.75

16-1.25

17.75

5.12

12.75

12.00

2.88

12.88

0.5

4

12.92

 

12.94

2.38

14

23

2.12

16.25

16.75

20-1.25

20.25

5.62

14

To Be Specified by Purchaser

3.0

14.14

0.5

4.38

14.18

 

14.19

2.5

16

25.5

2.25

18.5

19

20-1.38

22.5

5.75

16

3.25

16.16

0.5

4.75

16.19

 

16.19

2.69

18

28

2.38

21

21

24-1.38

24.75

6.25

18

3.5

18.18

0.5

5.12

18.2

 

18.19

2.75

20

30.5

2.5

23

23.12

24-1.38

27

6.38

20

3.75

20.2

0.5

5.5

20.25

 

20.19

2.88

24

36

2.75

27.25

27.62

24-1.62

32

6.62

24

4.19

24.25

.5

6

24.25

 

24.19

3.25



All dimensions given in inches.
Dimensions and tolerances in accordance with ANSI B16.5.
Carbon steel flanges mechanical properties and chemistry conform to ASTM A105.
Flanges are furnished faced, drilled and spotfaced or backfaced.
*1/16 in. raised face included in dimensions Q, Y and YY.
**Bolt hole diameter 1/8 in. larger than bolt diameter.


ANSI 300 Flange, Drawing And Dimensions, Carbon Steel Flanges

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