ANSI B16.5 Flanges
description
Transcript of ANSI B16.5 Flanges
Flanges are available as Weld Neck, Integral, Blinds, Targets and Test Blinds for use with the following pressure ratings:
Rating 150lb 300lb 400lb 600lb
Max. Working Pressure 285 PSI 740 PSI 990 PSI 1480 PSI
Test Pressure 450 PSI 1125 PSI 1500 PSI 2225 PSI
Operating Temperature Range
General Note: All Dimensions are in Inches
Class 150 Flanges
HU
B A
ND
BO
RE
DIM
EN
SIO
NS
-28 To +540 Deg C
-28 To +540 Deg C
-28 To +540 Deg C
-28 To +540 Deg C
Nominal Pipe Size
Outside Diameter of
Flange
Min. Thickness of Flange
Diameter of Hub
Hub Diameter Beginning of Chamfer at
Welding Neck
HU
B A
ND
BO
RE
DIM
EN
SIO
NS
D T A E1/2 3.50 0.44 1.19 0.843/4 3.88 0.50 1.50 1.051 4.25 0.56 1.94 1.32
1.1/4 4.62 0.62 2.31 1.661.1/2 5.00 0.69 2.56 1.90
2 6.00 0.75 3.06 2.382.1/2 7.00 0.88 3.56 2.88
3 7.50 0.94 4.25 3.503.1/2 8.50 0.94 4.81 4.00
4 9.00 0.94 5.31 4.505 10.00 0.94 6.44 5.566 11.00 1.00 7.56 6.638 13.50 1.12 9.69 8.63
10 16.00 1.19 12.00 10.7512 19.00 1.25 14.38 12.7514 21.00 1.38 15.75 14.0016 23.50 1.44 18.00 16.0018 25.00 1.56 19.88 18.0020 27.50 1.60 22.00 20.0024 32.00 1.88 26.12 24.00
Nominal Pipe Size
Outside Diameter of
Flange
Min. Thickness of Flange
Diameter of Hub
Hub Diameter Beginning of Chamfer at
Welding Neck
Class 300 FlangesH
UB
AN
D B
OR
E D
IME
NS
ION
S
D T A E1/2 3.75 0.56 1.50 0.843/4 4.62 0.62 1.88 1.051 4.88 0.69 2.12 1.32
1.1/4 5.25 0.75 2.50 1.661.1/2 6.12 0.81 2.75 1.90
2 6.50 0.88 3.31 2.382.1/2 7.50 1.00 3.94 2.88
3 8.25 1.12 4.62 3.503.1/2 9.00 1.19 5.25 4.00
4 10.00 1.25 5.75 4.505 11.00 1.38 7.00 5.566 12.50 1.44 8.12 6.638 15.00 1.62 10.25 8.63
10 17.50 1.88 12.62 10.7512 20.50 2.00 14.75 12.7514 23.00 2.12 16.75 14.0016 25.50 2.25 19.00 16.0018 28.00 2.38 21.00 18.0020 30.50 2.50 23.12 20.0024 36.00 2.75 27.62 24.00
Nominal Pipe Size
Outside Diameter of
Flange
Min. Thickness of Flange
Diameter of Hub
Hub Diameter Beginning of Chamfer at
Welding Neck
Class 400 Flanges
HU
B A
ND
BO
RE
DIM
EN
SIO
NS
D T A E1/2 3.75 0.56 1.50 0.843/4 4.62 0.62 1.88 1.051 4.88 0.69 2.12 1.32
1.1/4 5.25 0.81 2.50 1.661.1/2 6.12 0.88 2.75 1.90
2 6.50 1.00 3.31 2.382.1/2 7.50 1.12 3.94 2.88
3 8.25 1.25 4.62 3.503.1/2 9.00 1.38 5.25 4.00
4 10.00 1.38 5.75 4.505 11.00 1.50 7.00 5.566 12.50 1.62 8.12 6.638 15.00 1.88 10.25 8.63
10 17.50 2.12 12.62 10.7512 20.50 2.25 14.75 12.7514 23.00 2.38 16.75 14.0016 25.50 2.50 19.00 16.0018 28.00 2.62 21.00 18.0020 30.50 2.75 23.12 20.0024 36.00 3.00 27.62 24.00
Nominal Pipe Size
Outside Diameter of
Flange
Min. Thickness of Flange
Diameter of Hub
Hub Diameter Beginning of Chamfer at
Welding Neck
Class 600 Flanges
HU
B A
ND
BO
RE
DIM
EN
SIO
NS
D T A E1/2 3.75 0.56 1.50 0.843/4 4.62 0.62 1.88 1.051 4.88 0.69 2.12 1.32
1.1/4 5.25 0.81 2.50 1.661.1/2 6.12 0.88 2.75 1.90
2 6.50 1.00 3.31 2.382.1/2 7.50 1.12 3.94 2.88
3 8.25 1.25 4.62 3.503.1/2 9.00 1.38 5.25 4.00
4 10.75 1.50 6.00 4.505 13.00 1.75 7.44 5.566 14.00 1.88 8.75 6.638 16.50 2.19 10.75 8.63
10 20.00 2.50 13.50 10.7512 22.00 2.62 15.75 12.7514 23.75 2.75 17.00 14.0016 27.00 3.00 19.50 16.0018 29.25 3.25 21.50 18.0020 32.00 3.50 24.00 20.0024 37.00 4.00 28.25 24.00
Nominal Pipe Size
Outside Diameter of
Flange
Min. Thickness of Flange
Diameter of Hub
Hub Diameter Beginning of Chamfer at
Welding Neck
Class 900 Flanges
HU
B A
ND
BO
RE
DIM
EN
SIO
NS
D T A E1/2 4.75 0.88 1.50 0.843/4 5.12 1.00 1.75 1.051 5.88 1.12 2.06 1.32
1.1/4 6.25 1.12 2.50 1.661.1/2 7.00 1.25 2.75 1.90
2 8.50 1.50 4.12 2.382.1/2 9.62 1.62 4.88 2.88
3 9.50 1.50 5.00 3.504 11.50 1.75 6.25 4.505 13.75 2.00 7.50 5.566 15.00 2.19 9.25 6.638 18.50 2.50 11.75 8.63
10 21.50 2.75 14.50 10.7512 24.00 3.12 16.50 12.7514 25.25 3.38 17.75 14.0016 27.75 3.50 20.00 16.0018 31.00 4.00 22.25 18.0020 33.75 4.25 24.50 20.0024 41.00 5.50 29.50 24.00
Nominal Pipe Size
Outside Diameter of
Flange
Min. Thickness of Flange
Diameter of Hub
Hub Diameter Beginning of Chamfer at
Welding Neck
Class 1500 Flanges
HU
B A
ND
BO
RE
DIM
EN
SIO
NS
D T A E1/2 4.75 0.88 1.50 0.843/4 5.12 1.00 1.75 1.051 5.88 1.12 2.06 1.32
1.1/4 6.25 1.12 2.50 1.661.1/2 7.00 1.25 2.75 1.90
2 8.50 1.50 4.12 2.382.1/2 9.62 1.62 4.88 2.88
3 10.50 1.88 5.25 3.504 12.25 2.12 6.38 4.505 14.75 2.88 7.75 5.566 15.50 3.25 9.00 6.638 19.00 3.62 11.50 8.63
10 23.00 4.25 14.50 10.7512 26.50 4.88 17.75 12.7514 29.50 5.25 19.50 14.0016 32.50 5.75 21.75 16.0018 36.00 6.38 23.50 18.0020 38.75 7.00 25.25 20.0024 46.00 8.00 30.00 24.00
Nominal Pipe Size
Outside Diameter of
Flange
Min. Thickness of Flange
Diameter of Hub
Hub Diameter Beginning of Chamfer at
Welding Neck
Class 2500 Flanges
HU
B A
ND
BO
RE
DIM
EN
SIO
NS D T A E
1/2 5.25 1.19 1.69 0.843/4 5.50 1.25 2.00 1.051 6.25 1.38 2.25 1.32
1.1/4 7.25 1.50 2.88 1.661.1/2 8.00 1.75 3.12 1.90
2 9.25 2.00 3.75 2.382.1/2 10.50 2.25 4.50 2.88
3 12.00 2.62 5.25 3.504 14.00 3.00 6.50 4.505 16.50 3.62 8.00 5.566 19.00 4.25 9.25 6.638 21.75 5.00 12.00 8.63
10 26.50 6.50 14.75 10.7512 30.00 7.25 17.38 12.75
Nominal Pipe Size
Outside Diameter of
Flange
Min. Thickness of Flange
Diameter of Hub
Hub Diameter Beginning of Chamfer at
Welding Neck
Flanges are available as Weld Neck, Integral, Blinds, Targets and Test Blinds for use with the following pressure ratings:
900lb 1,500lb 2,500lb
2220 PSI 3705 PSI 6170 PSI
3350 PSI 5575 PSI 9275 PSI
Class 150 Flanges
Number of Bolts
-28 To +540 Deg C
-28 To +540 Deg C
-28 To +540 Deg C
Welding Neck Length Through
Hub
Welding Neck Bore
Diameter of Bolt Hole Cirlcle
Diameter of Bolt Holes
Diameter of Bolts
Number of Bolts
L B P1.88 0.62 2.38 0.62 4 1/22.06 0.82 2.75 0.62 4 1/22.19 1.05 3.12 0.62 4 1/22.25 1.38 3.50 0.62 4 1/22.44 1.61 3.88 0.62 4 1/22.50 2.07 4.75 0.75 4 5/82.75 2.47 5.50 0.75 4 5/82.75 3.07 6.00 0.75 4 5/82.81 3.55 7.00 0.75 8 5/83.00 4.03 7.50 0.75 8 5/83.50 5.05 8.50 0.88 8 3/43.50 6.07 9.50 0.88 8 3/44.00 7.98 11.75 0.88 8 3/44.00 10.02 14.25 1.00 12 7/84.50 12.00 17.00 1.00 12 7/85.00 18.75 1.12 12 15.00 21.25 1.12 16 15.50 22.75 1.25 16 1.1/85.69 25.00 1.25 20 1.1/86.00 29.50 1.38 20 1.1/4
Welding Neck Length Through
Hub
Welding Neck Bore
Diameter of Bolt Hole Cirlcle
Diameter of Bolt Holes
Diameter of Bolts
To be Specified by Purchaser
Class 300 Flanges
Number of Bolts
L B P2.06 0.62 2.62 0.62 4 1/22.25 0.82 3.25 0.75 4 5/82.44 1.05 3.50 0.75 4 5/82.56 1.38 3.88 0.75 4 5/82.69 1.61 4.50 0.88 4 3/42.75 2.07 5.00 0.75 8 5/83.00 2.47 5.88 0.88 8 3/43.12 3.07 6.62 0.88 8 3/43.19 3.55 7.25 0.88 8 3/43.38 4.03 7.88 0.88 8 3/43.88 5.05 9.25 0.88 8 3/43.88 6.07 10.62 0.88 12 3/44.38 7.98 13.00 1.00 12 7/84.62 10.02 15.25 1.12 16 15.12 12.00 17.75 1.25 16 1.1/85.62 12.00 20.25 1.25 20 1.1/85.75 22.50 1.38 20 1.1/46.25 24.75 1.38 24 1.1/46.38 27.00 1.38 24 1.1/46.62 32.00 1.62 24 1.1/2
Welding Neck Length Through
Hub
Welding Neck Bore
Diameter of Bolt Hole Cirlcle
Diameter of Bolt Holes
Diameter of Bolts
To be Specified by Purchaser
Class 400 Flanges
Number of Bolts
L B P2.06 2.62 0.62 4 1/22.25 3.25 0.75 4 5/82.44 3.50 0.75 4 5/82.62 3.88 0.75 4 5/82.75 4.50 0.88 4 3/42.88 5.00 0.75 8 5/83.12 5.88 0.88 8 3/43.25 6.62 0.88 8 3/43.38 7.25 1.00 8 7/83.50 7.88 1.00 8 7/84.00 9.25 1.00 8 7/84.06 10.62 1.00 12 7/84.62 13.00 1.12 12 14.88 15.25 1.25 16 1.1/85.38 17.75 1.38 16 1.1/45.88 20.25 1.38 20 1.1/46.00 22.50 1.50 20 1.3/86.50 24.75 1.50 24 1.3/86.62 27.00 1.62 24 1.1/26.88 32.00 1.88 24 1.3/4
Welding Neck Length Through
Hub
Welding Neck Bore
Diameter of Bolt Hole Cirlcle
Diameter of Bolt Holes
Diameter of Bolts
To be Specified by Purchaser
Class 600 Flanges
Number of Bolts
L B P2.06 2.62 0.62 4 1/22.25 3.25 0.75 4 5/82.44 3.50 0.75 4 5/82.62 3.88 0.75 4 5/82.75 4.50 0.88 4 3/42.88 5.00 0.75 8 5/83.12 5.88 0.88 8 3/43.25 6.62 0.88 8 3/43.38 7.25 1.00 8 7/84.00 8.50 1.00 8 7/84.50 10.50 1.12 8 14.62 11.50 1.12 12 15.25 13.75 1.25 12 1.1/86.00 17.00 1.38 16 1.1/46.12 19.25 1.38 20 1.1/46.50 20.75 1.50 20 1.3/87.00 23.75 1.62 20 1.1/27.25 25.75 1.75 20 1.5/87.50 28.50 1.75 24 1.5/88.00 33.00 2.00 24 1.7/8
Welding Neck Length Through
Hub
Welding Neck Bore
Diameter of Bolt Hole Cirlcle
Diameter of Bolt Holes
Diameter of Bolts
To be Specified by Purchaser
Class 900 Flanges
Number of Bolts
L B P2.38 3.25 0.88 4 3/42.75 3.50 0.88 4 3/42.88 4.00 1.00 4 7/82.88 4.38 1.00 4 7/83.25 4.88 1.12 4 14.00 6.50 1.00 8 7/84.12 7.50 1.12 8 14.00 7.50 1.00 8 7/84.50 9.25 1.25 8 1.1/85.00 11.00 1.38 8 1.1/45.50 12.50 1.25 12 1.1/86.38 15.50 1.50 12 1.3/87.25 18.50 1.50 16 1.3/87.88 21.00 1.50 20 1.3/88.38 22.00 1.62 20 1.1/28.50 24.25 1.75 20 1.5/89.00 27.00 2.00 20 1.7/89.75 29.50 2.12 20 2
11.50 35.50 2.62 20 2.1/2
Welding Neck Length Through
Hub
Welding Neck Bore
Diameter of Bolt Hole Cirlcle
Diameter of Bolt Holes
Diameter of Bolts
To be Specified by Purchaser
Class 1500 Flanges
Number of Bolts
L B P2.38 3.25 0.88 4 3/42.75 3.50 0.88 4 3/42.88 4.00 1.00 4 7/82.88 4.38 1.00 4 7/83.25 4.88 1.12 4 14.00 6.50 1.00 8 7/84.12 7.50 1.12 8 14.62 8.00 1.25 8 1.1/84.88 9.50 1.38 8 1.1/46.12 11.50 1.62 8 1.1/26.75 12.50 1.50 12 1.3/88.38 15.50 1.75 12 1.5/8
10.00 19.00 2.00 12 1.7/811.12 22.50 2.12 16 211.75 25.00 2.38 16 2.1/412.25 27.75 2.62 16 2.1/212.88 30.50 2.88 16 2.3/414.00 32.75 3.12 16 316.00 39.00 3.62 16 3.1/2
Welding Neck Length Through
Hub
Welding Neck Bore
Diameter of Bolt Hole Cirlcle
Diameter of Bolt Holes
Diameter of Bolts
To be Specified by Purchaser
Class 2500 Flanges
Number of Bolts
L B P2.88 3.50 0.88 4 3/43.12 3.75 0.88 4 3/43.50 4.25 1.00 4 7/83.75 5.12 1.12 4 14.38 5.75 1.25 4 1.1/85.00 6.75 1.12 8 15.62 7.75 1.25 8 1.1/86.62 9.00 1.38 8 1.1/47.50 10.75 1.62 8 1.1/29.00 12.75 1.88 8 1.3/4
10.75 14.50 2.12 8 212.50 17.25 2.12 12 216.50 21.25 2.62 12 2.1/218.25 24.38 2.88 12 2.3/4
Welding Neck Length Through
Hub
Welding Neck Bore
Diameter of Bolt Hole Cirlcle
Diameter of Bolt Holes
Diameter of Bolts
To be Specified by Purchaser
Flanges are available as Weld Neck, Integral, Blinds, Targets and Test Blinds for use with the following pressure ratings:
Class 150 Flanges
Length of Raised Face
2.25 -2.50 -2.50 3.002.75 3.252.75 3.253.25 3.753.50 4.003.50 4.003.50 4.003.50 4.003.75 4.254.00 4.504.25 4.754.50 5.004.75 5.255.25 5.755.25 5.755.75 6.256.25 6.756.75 7.25
Diameter of Raised Face
Total Thickness of Flange
Class 300 Flanges
Length of Raised Face
2.50 3.003.00 3.503.00 3.503.25 3.753.50 4.003.50 4.004.00 4.504.25 4.754.25 4.754.50 5.004.75 5.254.75 5.255.50 6.006.25 6.756.75 7.257.00 7.507.50 8.007.75 8.258.00 8.759.00 10.00
Diameter of Raised Face
Total Thickness of Flange
Class 400 Flanges
Length of Raised Face
3.00 3.003.50 3.503.50 3.503.75 3.754.25 4.254.25 4.254.75 4.755.00 5.005.50 5.505.50 5.505.75 5.756.00 6.006.75 6.757.50 7.508.00 8.008.25 8.258.75 8.759.00 9.009.50 9.75
10.50 11.00
Diameter of Raised Face
Total Thickness of Flange
Class 600 Flanges
Length of Raised Face
3.00 3.003.50 3.503.50 3.503.75 3.754.25 4.254.25 4.254.75 4.755.00 5.005.50 5.505.75 5.756.50 6.506.75 6.757.50 7.508.50 8.508.75 8.759.25 9.25
10.00 10.0010.75 10.7511.25 11.5013.00 13.25
Diameter of Raised Face
Total Thickness of Flange
Class 900 Flanges
Length of Raised Face
4.25 4.254.50 4.505.00 5.005.00 5.005.50 5.505.75 5.756.25 6.255.75 5.756.75 6.757.50 7.507.50 7.508.75 8.759.25 9.25
10.00 10.0010.75 11.0011.25 11.5012.75 13.2513.75 14.2517.25 18.00
Diameter of Raised Face
Total Thickness of Flange
Class 1500 Flanges
Length of Raised Face
4.25 4.254.50 4.505.00 5.005.00 5.005.50 5.505.75 5.756.25 6.257.00 7.007.75 7.759.75 9.75
10.25 10.5011.50 11.7513.25 13.5014.75 15.2516.00 16.7517.50 18.5019.50 20.7521.25 22.2524.25 25.50
Diameter of Raised Face
Total Thickness of Flange
Class 2500 Flanges
Length of Raised Face
4.75 4.755.00 5.005.50 5.506.00 6.006.75 6.757.00 7.007.75 8.008.75 9.00
10.00 10.2511.75 12.2513.50 14.0015.00 15.5019.25 20.0021.25 22.00
Diameter of Raised Face
Total Thickness of Flange