Dimensions and tolerances for flanges ANSI 150

Ø NPS Ø DN
1/2 15

For flanges ANSI 150#
Ø D:21,3 +1,6/-0,8

Diameter of lap
G:35 +0/-1

Radius of fillet
R:3 +0/-1

Height
H:5 +/-2

3/4 20

For flanges ANSI 150#
Ø D:26,7 +1,6/-0,8

Diameter of lap
G:43 +0/-1

Radius of fillet
R:3 +0/-1

Height
H:6 +/-2

1 25

For flanges ANSI 150#
Ø D:33,4 +1,6/-0,8

Diameter of lap
G:51 +0/-1

Radius of fillet
R:3 +0/-1

Height
H:8 +/-2

1 1/4 32

For flanges ANSI 150#
Ø D:42,2 +1,6/-0,8

Diameter of lap
G:64 +0/-1

Radius of fillet
R:5 +0/-1

Height
H:8 +/-2

1 1/2 40

For flanges ANSI 150#
Ø D:48,3 +1,6/-0,8

Diameter of lap
G:73 +0/-1

Radius of fillet
R:6 +0/-1

Height
H:10 +/-2

2 50

For flanges ANSI 150#
Ø D:60,8 +1,6/-0,8

Diameter of lap
G:92 +0/-1

Radius of fillet
R:8 +0/-1

Height
H:10 +/-2

2 1/2 65

For flanges ANSI 150#
Ø D:73,0 +1,6/-0,8

Diameter of lap
G:105 +0/-1

Radius of fillet
R:8 +0/-1

Height
H:12 +/-2

3 80

For flanges ANSI 150#
Ø D:88,9 +1,6/-1,6

Diameter of lap
G:127 +0/-1

Radius of fillet
R:10 +0/-1

Height
H:12 +/-2

3 1/2 90

For flanges ANSI 150#
Ø D:101,6 +1,6/-1,6

Diameter of lap
G:140 +0/-1

Radius of fillet
R:10 +0/-1

Height
H:12 +/-2

4 100

For flanges ANSI 150#
Ø D:114,3 +1,6/-1,6

Diameter of lap
G:157 +0/-1

Radius of fillet
R:11 +0/-2

Height
H:14 +/-2

5 125

For flanges ANSI 150#
Ø D:141,3 +2,4/-1,6

Diameter of lap
G:186 +0/-1

Radius of fillet
R:11 +0/-2

Height
H:16 +/-2

6 150

For flanges ANSI 150#
Ø D:168,3 +2,4/-1,6

Diameter of lap
G:216 +0/-1

Radius of fillet
R:13 +0/-2

Height
H:16 +/-2

8 200

For flanges ANSI 150#
Ø D:219,1 +2,4/-1,6

Diameter of lap
G:270 +0/-1

Radius of fillet
R:13 +0/-2

Height
H:18 +/-2

10 250

For flanges ANSI 150#
Ø D:273,0 +4,0/-3,2

Diameter of lap
G:324 +0/-2

Radius of fillet
R:13 +0/-2

Height
H:20 +/-2

12 300

For flanges ANSI 150#
Ø D:323,8 +4,0/-3,2

Diameter of lap
G:381 +0/-2

Radius of fillet
R:13 +0/-2

Height
H:20 +/-2

14 350

For flanges ANSI 150#
Ø D:355,6 +4,0/-3,2

Diameter of lap
G:413 +0/-2

Radius of fillet
R:13 +0/-2

Height
H:25 +/-2

16 400

For flanges ANSI 150#
Ø D:406,4 +4,0/-3,2

Diameter of lap
G:470 +0/-2

Radius of fillet
R:13 +0/-2

Height
H:25 +/-2

18 450

For flanges ANSI 150#
Ø D:457,0 +4,0/-3,2

Diameter of lap
G:533 +0/-2

Radius of fillet
R:13 +0/-2

Height
H:25 +/-2

20 500

For flanges ANSI 150#
Ø D:508,0 +6,4/-4,8

Diameter of lap
G:584 +0/-2

Radius of fillet
R:13 +0/-2

Height
H:25 +/-2

22 550

For flanges ANSI 150#
Ø D:559,0 +6,4/-4,8

Diameter of lap
G:641 +0/-2

Radius of fillet
R:13 +0/-2

Height
H:25 +/-2

24 600

For flanges ANSI 150#
Ø D:610,0 +6,4/-4,8

Diameter of lap
G:692 +0/-2

Radius of fillet
R:13 +0/-2

Height
H:25 +/-2

Unless otherwise indicated, dimensions are in mm.
These fittings are not included in the ASME/ANSI 16.9 standard.
These dimensions conform to the radius established for lap joint flanges in ASME B16.5. The dimensions “R” and “h” are indicatives only.
A minimum wall thickness of 87.5% applies unless the purchaser specifies a different wall thickness tolerance.
Out of round is the sum of absolute values of plus and minus tolerances.
Gasket face finish shall be in accordance with ASME B16.5 for raised face flanges (note 1). The most common finish is the Stock Finish.


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