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Class 150 Flange

ASME B16.5-2017

Download Specs
ASME B16.5-2017 Class 150
Length Through Hub Bore Bolt
Nominal Pipe Size/ Bore for LWN Outside Diameter Min. Thickness Diameter of Raised Face Min. Thickness Lap Joint Diameter of Hub Diameter Beginning of Chamfer Welding Neck Threaded Slip-on Socket Welding Lapped Welding Neck Long Welding Neck Minimum Thread Length Threaded Minimum Slip-On Socket Welding Minimum Lapped Welding Neck / Socket Welding Corner Bore Radius of Lapped Flange and Pipe Depth of Socket Bolt Circle Dia Number of Holes Diameter of Holes
J O tf R tf X A Y1 Y2 Y3 Y4 T B1 B2 B3 r D
½ 3.50 0.38 1.38 0.44 1.19 0.84 0.56 0.62 1.81 9.00 0.62 0.88 0.90 Note-3 0.12 0.38 2.38 4 0.63
¾ 3.88 0.44 1.69 0.50 1.50 1.05 0.56 0.62 2.00 9.00 0.62 1.09 1.11 Note-3 0.12 0.44 2.75 4 0.63
1 4.25 0.50 2.00 0.56 1.94 1.32 0.62 0.69 2.12 9.00 0.69 1.36 1.38 Note-3 0.12 0.50 3.12 4 0.63
1¼ 4.62 0.56 2.50 0.62 2.31 1.66 0.75 0.81 2.19 9.00 0.81 1.70 1.72 Note-3 0.19 0.56 3.50 4 0.63
1½ 5.00 0.62 2.88 0.69 2.56 1.90 0.81 0.88 2.38 9.00 0.88 1.95 1.97 Note-3 0.25 0.62 3.88 4 0.63
2 6.00 0.69 3.62 0.75 3.06 2.38 0.94 1.00 2.44 9.00 1.00 2.44 2.46 Note-3 0.31 0.69 4.75 4 0.75
2½ 7.00 0.81 4.12 0.88 3.56 2.88 1.06 1.12 2.69 9.00 1.12 2.94 2.97 Note-3 0.31 0.75 5.50 4 0.75
3 7.50 0.88 5.00 0.94 4.25 3.50 1.12 1.19 2.69 9.00 1.19 3.57 3.60 Note-3 0.38 0.81 6.00 4 0.75
3½ 8.50 0.88 5.50 0.94 4.81 4.00 1.19 1.25 2.75 9.00 1.25 4.07 4.10 Note-3 0.38 - 7.00 8 0.75
4 9.00 0.88 6.19 0.94 5.31 4.50 1.25 1.31 2.94 Note-3 1.31 4.57 4.60 Note-3 0.44 - 7.50 8 0.75
5 10.00 0.88 7.31 0.94 6.44 5.56 1.38 1.44 3.44 12.00 1.44 5.66 5.69 Note-3 0.44 - 8.50 8 0.88
6 11.00 0.94 8.50 1.00 7.56 6.63 1.50 1.56 3.44 12.00 1.56 6.72 6.75 Note-3 0.50 - 9.50 8 0.88
8 13.50 1.06 10.62 1.12 9.69 8.63 1.69 1.75 3.94 12.00 1.75 8.72 8.75 Note-3 0.50 - 11.75 8 0.88
10 16.00 1.12 12.75 1.19 12.00 10.75 1.88 1.94 3.94 12.00 1.94 10.88 10.92 Note-3 0.50 - 14.25 12 1.00
12 19.00 1.19 15.00 1.25 14.38 12.75 2.12 2.19 4.44 12.00 2.19 12.88 12.92 Note-3 0.50 - 17.00 12 1.00
14 21.00 1.31 16.25 1.38 15.75 14.00 2.19 3.12 4.94 12.00 2.25 14.14 14.18 Note-3 0.50 - 18.75 12 1.13
16 23.50 1.38 18.50 1.44 18.00 16.00 2.44 3.44 4.94 12.00 2.50 16.16 16.19 Note-3 0.50 - 21.25 16 1.13
18 25.00 1.50 21.00 1.56 19.88 18.00 2.62 3.81 5.44 12.00 2.69 18.18 18.20 Note-3 0.50 - 22.75 16 1.25
20 27.50 1.62 23.00 1.69 22.00 20.00 2.81 4.06 5.62 12.00 2.88 20.20 20.25 Note-3 0.50 - 25.00 20 1.25
22 29.50 1.75 25.25 1.81 24.00 22.00 3.06 4.25 5.82 12.00 - 22.22 22.25 Note-3 0.50 - 27.25 20 1.38
24 32.00 1.81 27.25 1.88 26.12 24.00 3.19 4.38 5.94 12.00 3.25 24.25 24.25 Note-3 0.50 - 29.50 20 1.38

Notes:
(1) This dimension is for the large end of the hub, which may be straight or tapered. Taper shall not exceed 7 deg on threaded, slip-on, socket-welding, and lapped flanges.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.06 in. or the tf dimension thickness without the raised face height. (3) To be specified by the Customer; Y4 - the length can be 9" (B16.5) or 12" (industry), shall be specified by the customer.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-030 Rev. 1 10/01/2020

Class 300 Flange

ASME B16.5-2017

Download Specs
ASME B16.5-2017 Class 300
Length Through Hub Bore Bolt
Nominal Pipe Size/ Bore for LWN Outside Diameter Min. Thickness Diameter of Raised Face Min. Thickness Lap Joint Diameter of Hub Diameter Beginning of Chamefer Welding Neck Threaded Slip-on Socket Welding Lapped Welding Neck Long Welding Neck Minimum Thread Length Threaded Minimum Slip-On Socket Welding Minimum Lapped Welding Neck / Socket Welding Corner Bore Radius of Lapped Flange and Pipe Depth of Socket Minimum Counter-bore Threaded Flange Bolt Circle Dia Number of Holes Diameter of Holes
J O tf R tf X A Y1 Y2 Y3 Y4 T B1 B2 B3 r D Q
½ 3.75 0.50 1.38 0.56 1.50 0.84 0.81 0.88 2.00 9.00 0.62 0.88 0.90 Note-3 0.12 0.38 0.93 2.62 4 0.63
¾ 4.62 0.56 1.69 0.62 1.88 1.05 0.94 1.00 2.19 9.00 0.62 1.09 1.11 Note-3 0.12 0.44 1.14 3.25 4 0.75
1 4.88 0.62 2.00 0.69 2.12 1.32 1.00 1.06 2.38 9.00 0.69 1.36 1.38 Note-3 0.12 0.50 1.41 3.50 4 0.75
1¼ 5.25 0.69 2.50 0.75 2.50 1.66 1.00 1.06 2.50 9.00 0.81 1.70 1.72 Note-3 0.19 0.56 1.75 3.88 4 0.75
1½ 6.12 0.75 2.88 0.81 2.75 1.90 1.13 1.19 2.63 9.00 0.88 1.95 1.97 Note-3 0.25 0.62 1.98 4.50 4 0.88
2 6.50 0.81 3.62 0.88 3.31 2.38 1.25 1.31 2.69 9.00 1.12 2.44 2.46 Note-3 0.31 0.69 2.50 5.00 8 0.75
2½ 7.50 0.94 4.12 1.00 3.94 2.88 1.44 1.50 2.94 9.00 1.25 2.94 2.97 Note-3 0.31 0.75 3.00 5.88 8 0.88
3 8.25 1.06 5.00 1.12 4.62 3.50 1.63 1.69 3.06 9.00 1.25 3.57 3.60 Note-3 0.38 0.81 3.63 6.62 8 0.88
3½ 9.00 1.12 5.50 1.19 5.25 4.00 1.69 1.75 3.13 9.00 1.44 4.07 4.10 Note-3 0.38 - 4.13 7.25 8 0.88
4 10.00 1.19 6.19 1.25 5.75 4.50 1.82 1.88 3.32 Note-3 1.44 4.57 4.60 Note-3 0.44 - 4.63 7.88 8 0.88
5 11.00 1.31 7.31 1.38 7.00 5.56 1.94 2.00 3.82 12.00 1.69 5.66 5.69 Note-3 0.44 - 5.69 9.25 8 0.88
6 12.50 1.38 8.50 1.44 8.12 6.63 2.00 2.06 3.82 12.00 1.81 6.72 6.75 Note-3 0.50 - 6.75 10.62 12 0.88
8 15.00 1.56 10.62 1.62 10.25 8.63 2.38 2.44 4.32 12.00 2.00 8.72 8.75 Note-3 0.50 - 8.75 13.00 12 1.00
10 17.50 1.81 12.75 1.88 12.62 10.75 2.56 3.75 4.56 12.00 2.19 10.88 10.92 Note-3 0.50 - 10.88 15.25 16 1.13
12 20.50 1.94 15.00 2.00 14.75 12.75 2.82 4.00 5.06 12.00 2.38 12.88 12.92 Note-3 0.50 - 12.94 17.75 16 1.25
14 23.00 2.06 16.25 2.12 16.75 14.00 2.94 4.38 5.56 12.00 2.50 14.14 14.18 Note-3 0.50 - 14.19 20.25 20 1.25
16 25.50 2.19 18.50 2.25 19.00 16.00 3.19 4.75 5.69 12.00 2.69 16.16 16.19 Note-3 0.50 - 16.19 22.50 20 1.38
18 28.00 2.31 21.00 2.38 21.00 18.00 3.44 5.12 6.19 12.00 2.75 18.18 18.20 Note-3 0.50 - 18.19 24.75 24 1.38
20 30.50 2.44 23.00 2.50 23.12 20.00 3.69 5.50 6.32 12.00 2.88 20.20 20.25 Note-3 0.50 - 20.19 27.00 24 1.38
22 33.00 2.56 25.25 2.62 25.25 22.00 3.94 5.69 6.44 12.00 - 22.22 22.25 Note-3 0.50 - - 29.25 24 1.63
24 36.00 2.69 27.25 2.75 27.62 24.00 4.13 6.00 6.56 12.00 3.25 24.25 24.25 Note-3 0.50 - 24.19 32.00 24 1.63

Notes:
(1) This dimension is for the large end of the hub, which may be straight or tapered. Taper shall not exceed 7 deg on threaded, slip-on, socket-welding, and lapped flanges.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.06 in. or the tf dimension thickeness without the raised face height.
(3) To be specified by the Customer; Y4 - the length can be 9" (B16.5) or 12" (industry),shall be specified by the customer.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-030 Rev. 1 10/01/2020

Class 400 Flange

ASME B16.5-2017

Download Specs
ASME B16.5-2017 Class 400
Length Through Hub Bore Bolt
Nominal Pipe Size/ Bore for LWN Outside Diameter Min. Thickness Diameter of Raised Face Diameter of Hub Diameter Beginning of Chamefer Welding Neck Threaded Slip-on Socket Welding Lapped Welding Neck Long Welding Neck Minimum Thread Length Threaded Minimum Slip-On Socket Welding Minimum Lapped Welding Neck / Socket Welding Corner Bore Radius of Lapped Flange and Pipe Depth of Socket Minimum Counter-bore Threaded Flange Bolt Circle Dia Number of Holes Diameter of Holes
J O tf R X A Y1 Y2 Y3 Y4 T B1 B2 B3 r D Q
½ 3.75 0.56 1.38 1.50 0.84 0.88 0.88 2.06 9.00 0.62 0.88 0.90 Note-3 0.12 0.38 0.93 2.62 4 0.63
¾ 4.62 0.62 1.69 1.88 1.05 1.00 1.00 2.25 9.00 0.62 1.09 1.11 Note-3 0.12 0.44 1.14 3.25 4 0.75
1 4.88 0.69 2.00 2.12 1.32 1.06 1.06 2.44 9.00 0.69 1.36 1.38 Note-3 0.12 0.50 1.41 3.50 4 0.75
1¼ 5.25 0.81 2.50 2.50 1.66 1.12 1.12 2.62 9.00 0.81 1.70 1.72 Note-3 0.19 0.56 1.75 3.88 4 0.75
1½ 6.12 0.88 2.88 2.75 1.90 1.25 1.25 2.75 9.00 0.88 1.95 1.97 Note-3 0.25 0.62 1.99 4.50 4 0.88
2 6.50 1.00 3.62 3.31 2.38 1.44 1.44 2.88 9.00 1.12 2.44 2.46 Note-3 0.31 0.69 2.50 5.00 8 0.75
2½ 7.50 1.12 4.12 3.94 2.88 1.62 1.62 3.12 9.00 1.25 2.94 2.97 Note-3 0.31 0.75 3.00 5.88 8 0.88
3 8.25 1.25 5.00 4.62 3.50 1.81 1.81 3.25 9.00 1.38 3.57 3.60 Note-3 0.38 0.81 3.63 6.62 8 0.88
3½ 9.00 1.38 5.50 5.25 4.00 1.94 1.94 3.38 9.00 1.56 4.07 4.10 Note-3 0.38 - 4.13 7.25 8 1.00
4 10.00 1.38 6.19 5.75 4.50 2.00 2.00 3.50 Note-3 1.44 4.57 4.60 Note-3 0.44 - 4.63 7.88 8 1.00
5 11.00 1.50 7.31 7.00 5.56 2.12 2.12 4.00 12.00 1.69 5.66 5.69 Note-3 0.44 - 5.69 9.25 8 1.00
6 12.50 1.62 8.50 8.12 6.63 2.25 2.25 4.06 12.00 1.81 6.72 6.75 Note-3 0.50 - 6.75 10.62 12 1.00
8 15.00 1.88 10.62 10.25 8.63 2.69 2.69 4.62 12.00 2.00 8.72 8.75 Note-3 0.50 - 8.75 13.00 12 1.13
10 17.50 2.12 12.75 12.62 10.75 2.88 4.00 4.88 12.00 2.19 10.88 10.92 Note-3 0.50 - 10.88 15.25 16 1.25
12 20.50 2.25 15.00 14.75 12.75 3.12 4.25 5.38 12.00 2.38 12.88 12.92 Note-3 0.50 - 12.94 17.75 16 1.38
14 23.00 2.38 16.25 16.75 14.00 3.31 4.62 5.88 12.00 2.50 14.14 14.18 Note-3 0.50 - 14.19 20.25 20 1.38
16 25.50 2.50 18.50 19.00 16.00 3.69 5.00 6.00 12.00 2.69 16.16 16.19 Note-3 0.50 - 16.19 22.50 20 1.50
18 28.00 2.62 21.00 21.00 18.00 3.88 5.38 6.50 12.00 2.75 18.18 18.20 Note-3 0.50 - 18.19 24.75 24 1.50
20 30.50 2.75 23.00 23.12 20.00 4.00 5.75 6.62 12.00 2.88 20.20 20.25 Note-3 0.50 - 20.19 27.00 24 1.63
22 33.00 2.88 25.25 25.25 22.00 4.25 6.00 6.75 12.00 - 22.22 22.25 Note-3 0.50 - - 29.25 24 1.75
24 36.00 3.00 27.25 27.62 24.00 4.50 6.25 6.88 12.00 3.25 24.25 24.25 Note-3 0.50 - 24.19 32.00 24 1.88

Notes:
(1) This dimension is for the large end of the hub, which may be straight or tapered. Taper shall not exceed 7 deg on threaded, slip-on, socket-welding, and lapped flanges.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.06 in. or the tf dimension thickeness without the raised face height.
(3) To be specified by the Customer; Y4 - the length can be 9" (B16.5) or 12" (industry), shall be specified by the customer.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-030 Rev. 1 10/01/2020

Class 600 Flange

ASME B16.5-2017

Download Specs
ASME B16.5-2017 Class 600
Length Through Hub Bore Bolt
Nominal Pipe Size/ Bore for LWN Outside Diameter Min. Thickness Diameter of Raised Face Diameter of Hub Diameter Beginning of Chamefer Welding Neck Threaded Slip-on Socket Welding Lapped Welding Neck Long Welding Neck Minimum Thread Length Threaded Minimum Slip-On Socket Welding Minimum Lapped Welding Neck / Socket Welding Corner Bore Radius of Lapped Flange and Pipe Depth of Socket Minimum Counter-bore Threaded Flange Bolt Circle Dia Number of Holes Diameter of Holes
J O tf R X A Y1 Y2 Y3 Y4 T B1 B2 B3 r D Q
½ 3.75 0.56 1.38 1.50 0.84 0.88 0.88 2.06 9.00 0.62 0.88 0.90 Note-3 0.12 0.38 0.93 2.62 4 0.63
¾ 4.62 0.62 1.69 1.88 1.05 1.00 1.00 2.25 9.00 0.62 1.09 1.11 Note-3 0.12 0.44 1.14 3.25 4 0.75
1 4.88 0.69 2.00 2.12 1.32 1.06 1.06 2.44 9.00 0.69 1.36 1.38 Note-3 0.12 0.50 1.41 3.50 4 0.75
1¼ 5.25 0.81 2.50 2.50 1.66 1.12 1.12 2.62 9.00 0.81 1.70 1.72 Note-3 0.19 0.56 1.75 3.88 4 0.75
1½ 6.12 0.88 2.88 2.75 1.90 1.25 1.25 2.75 9.00 0.88 1.95 1.97 Note-3 0.25 0.62 1.99 4.50 4 0.88
2 6.50 1.00 3.62 3.31 2.38 1.44 1.44 2.88 9.00 1.12 2.44 2.46 Note-3 0.31 0.69 2.50 5.00 8 0.75
2½ 7.50 1.12 4.12 3.94 2.88 1.62 1.62 3.12 9.00 1.25 2.94 2.97 Note-3 0.31 0.75 3.00 5.88 8 0.88
3 8.25 1.25 5.00 4.62 3.50 1.81 1.81 3.25 9.00 1.38 3.57 3.60 Note-3 0.38 0.81 3.63 6.62 8 0.88
3½ 9.00 1.38 5.50 5.25 4.00 1.94 1.94 3.38 9.00 1.56 4.07 4.10 Note-3 0.38 - 4.13 7.25 8 1.00
4 10.75 1.50 6.19 6.00 4.50 2.12 2.12 4.00 Note-3 1.62 4.57 4.60 Note-3 0.44 - 4.63 8.50 8 1.00
5 13.00 1.75 7.31 7.44 5.56 2.38 2.38 4.50 12.00 1.88 5.66 5.69 Note-3 0.44 - 5.69 10.50 8 1.12
6 14.00 1.88 8.50 8.75 6.63 2.62 2.62 4.62 12.00 2.00 6.72 6.75 Note-3 0.50 - 6.75 11.50 12 1.12
8 16.50 2.19 10.62 10.75 8.63 3.00 3.00 5.25 12.00 2.25 8.72 8.75 Note-3 0.50 - 8.75 13.75 12 1.25
10 20.00 2.50 12.75 13.50 10.75 3.38 4.38 6.00 12.00 2.56 10.88 10.92 Note-3 0.50 - 10.88 17.00 16 1.38
12 22.00 2.62 15.00 15.75 12.75 3.62 4.62 6.12 12.00 2.75 12.88 12.92 Note-3 0.50 - 12.94 19.25 20 1.38
14 23.75 2.75 16.25 17.00 14.00 3.69 5.00 6.50 12.00 2.88 14.14 14.18 Note-3 0.50 - 14.19 20.75 20 1.50
16 27.00 3.00 18.50 19.50 16.00 4.19 5.50 7.00 12.00 3.06 16.16 16.19 Note-3 0.50 - 16.19 23.75 20 1.62
18 29.25 3.25 21.00 21.50 18.00 4.62 6.00 7.25 12.00 3.12 18.18 18.20 Note-3 0.50 - 18.19 25.75 20 1.75
20 32.00 3.50 23.00 24.00 20.00 5.00 6.50 7.50 12.00 3.25 20.20 20.25 Note-3 0.50 - 20.19 28.50 24 1.75
22 34.25 3.75 25.25 26.25 22.00 5.25 6.88 7.75 12.00 - 22.22 22.25 Note-3 0.50 - - 30.63 24 1.88
24 37.00 4.00 27.25 28.25 24.00 5.50 7.25 8.00 12.00 3.62 24.25 24.25 Note-3 0.50 - 24.19 33.00 24 2.00

Notes:
(1) This dimension is for the large end of the hub, which may be straight or tapered. Taper shall not exceed 7 deg on threaded, slip-on, socket-welding, and lapped flanges.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.06 in. or the tf dimension thickeness without the raised face height.
(3) To be specified by the Customer; Y4 - the length can be 9" (B16.5) or 12" (industry), shall be specified by the customer.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-030 Rev. 1 10/01/2020

Class 900 Flange

ASME B16.5-2017

Download Specs
ASME B16.5-2017 Class 900
Length Through Hub Bore Bolt
Nominal Pipe Size/ Bore for LWN Outside Diameter Min. Thickness Diameter of Raised Face Diameter of Hub Diameter Beginning of Chamefer Welding Neck Threaded Slip-on Socket Welding Lapped Welding Neck Long Welding Neck Minimum Thread Length Threaded Minimum Slip-On Socket Welding Minimum Lapped Welding Neck / Socket Welding Corner Bore Radius of Lapped Flange and Pipe Depth of Socket Minimum Counter-bore Threaded Flange Bolt Circle Dia Number of Holes Diameter of Holes
J O tf R X A Y1 Y2 Y3 Y4 T B1 B2 B3 r D Q
½ 4.75 0.88 1.38 1.50 0.84 1.25 1.25 2.38 9.00 0.88 0.88 0.90 Note-3 0.12 0.38 0.93 3.25 4 0.88
¾ 5.12 1.00 1.69 1.75 1.05 1.38 1.38 2.75 9.00 1.00 1.09 1.11 Note-3 0.12 0.44 1.14 3.50 4 0.88
1 5.88 1.12 2.00 2.06 1.32 1.62 1.62 2.88 9.00 1.12 1.36 1.38 Note-3 0.12 0.50 1.41 4.00 4 1.00
1¼ 6.25 1.12 2.50 2.50 1.66 1.62 1.62 2.88 9.00 1.19 1.70 1.72 Note-3 0.19 0.56 1.75 4.38 4 1.00
1½ 7.00 1.25 2.88 2.75 1.90 1.75 1.75 3.25 9.00 1.25 1.95 1.97 Note-3 0.25 0.62 1.99 4.88 4 1.13
2 8.50 1.50 3.63 4.12 2.38 2.25 2.25 4.00 9.00 1.50 2.44 2.46 Note-3 0.31 0.69 2.50 6.50 8 1.00
2½ 9.62 1.62 4.13 4.88 2.88 2.50 2.50 4.12 9.00 1.88 2.94 2.97 Note-3 0.31 0.75 3.00 7.50 8 1.13
3 9.50 1.50 5.00 5.00 3.50 2.12 2.12 4.00 9.00 1.62 3.57 3.60 Note-3 0.38 - 3.63 7.50 8 1.00
4 11.50 1.75 6.19 6.25 4.50 2.75 2.75 4.50 Note-3 1.88 4.57 4.60 Note-3 0.44 - 4.63 9.25 8 1.25
5 13.75 2.00 7.31 7.50 5.56 3.12 3.12 5.00 12.00 2.12 5.66 5.69 Note-3 0.44 - 5.69 11.00 8 1.38
6 15.00 2.19 8.50 9.25 6.63 3.38 3.38 5.50 12.00 2.25 6.72 6.75 Note-3 0.50 - 6.75 12.50 12 1.25
8 18.50 2.50 10.62 11.75 8.63 4.00 4.50 6.38 12.00 2.50 8.72 8.75 Note-3 0.50 - 8.75 15.50 12 1.50
10 21.50 2.75 12.75 14.50 10.75 4.25 5.00 7.25 12.00 2.81 10.88 10.92 Note-3 0.50 - 10.88 18.50 16 1.50
12 24.00 3.12 15.00 16.50 12.75 4.62 5.62 7.88 12.00 3.00 12.88 12.92 Note-3 0.50 - 12.94 21.00 20 1.50
14 25.25 3.38 16.25 17.75 14.00 5.12 6.12 8.38 12.00 3.25 14.14 14.18 Note-3 0.50 - 14.19 22.00 20 1.63
16 27.75 3.50 18.50 20.00 16.00 5.25 6.50 8.50 12.00 3.38 16.16 16.19 Note-3 0.50 - 16.19 24.25 20 1.75
18 31.00 4.00 21.00 22.25 18.00 6.00 7.50 9.00 12.00 3.50 18.18 18.20 Note-3 0.50 - 18.19 27.00 20 2.00
20 33.75 4.25 23.00 24.50 20.00 6.25 8.25 9.75 12.00 3.62 20.20 20.25 Note-3 0.50 - 20.19 29.50 20 2.13
24 41.00 5.50 27.25 29.50 24.00 8.00 10.50 11.50 12.00 4.00 24.25 24.25 Note-3 0.50 - 24.19 35.50 20 2.63

Notes:
(1) This dimension is for the large end of the hub, which may be straight or tapered. Taper shall not exceed 7 deg on threaded, slip-on, socket-welding, and lapped flanges.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.25 in. or the tf dimension thickeness without the raised face height.
(3) To be specified by the Customer; Y4 - the length can be 9" (B16.5) or 12" (industry), shall be specified by the customer.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-030 Rev. 1 10/01/2020

Class 1500 Flange

ASME B16.5-2017

Download Specs
ASME B16.5-2017 Class 1500
Length Through Hub Bore Bolt
Nominal Pipe Size/ Bore for LWN Outside Diameter Min. Thickness Diameter of Raised Face Diameter of Hub Diameter Beginning of Chamefer Welding Neck Threaded Slip-on Socket Welding Lapped Welding Neck Long Welding Neck Minimum Thread Length Threaded Minimum Slip-On Socket Welding Minimum Lapped Welding Neck / Socket Welding Corner Bore Radius of Lapped Flange and Pipe Depth of Socket Minimum Counter-bore Threaded Flange Bolt Circle Dia Number of Holes Diameter of Holes
J O tf R X A Y1 Y2 Y3 Y4 T B1 B2 B3 r D Q
½ 4.75 0.88 1.38 1.50 0.84 1.25 1.25 2.38 9.00 0.88 0.88 0.90 Note-3 0.12 0.38 0.93 3.25 4 0.88
¾ 5.12 1.00 1.69 1.75 1.05 1.38 1.38 2.75 9.00 1.00 1.09 1.11 Note-3 0.12 0.44 1.14 3.50 4 0.88
1 5.88 1.12 2.00 2.06 1.32 1.62 1.62 2.88 9.00 1.12 1.36 1.38 Note-3 0.12 0.50 1.41 4.00 4 1.00
1¼ 6.25 1.12 2.50 2.50 1.66 1.62 1.62 2.88 9.00 1.19 1.70 1.72 Note-3 0.19 0.56 1.75 4.38 4 1.00
1½ 7.00 1.25 2.88 2.75 1.90 1.75 1.75 3.25 9.00 1.25 1.95 1.97 Note-3 0.25 0.62 1.99 4.88 4 1.13
2 8.50 1.50 3.62 4.12 2.38 2.25 2.25 4.00 9.00 1.50 2.44 2.46 Note-3 0.31 0.69 2.50 6.50 8 1.00
2½ 9.62 1.62 4.12 4.88 2.88 2.50 2.50 4.12 9.00 1.88 2.94 2.97 Note-3 0.31 0.75 3.00 7.50 8 1.13
3 10.50 1.88 5.00 5.25 3.50 - 2.88 4.62 9.00 - - 3.60 Note-3 0.38 - - 8.00 8 1.25
4 12.25 2.12 6.19 6.38 4.50 - 3.56 4.88 Note-3 - - 4.60 Note-3 0.44 - - 9.50 8 1.38
5 14.75 2.88 7.31 7.75 5.56 - 4.12 6.12 12.00 - - 5.69 Note-3 0.44 - - 11.50 8 1.63
6 15.50 3.25 8.50 9.00 6.63 - 4.69 6.75 12.00 - - 6.75 Note-3 0.50 - - 12.50 12 1.50
8 19.00 3.62 10.62 11.50 8.63 - 5.62 8.38 12.00 - - 8.75 Note-3 0.50 - - 15.50 12 1.75
10 23.00 4.25 12.75 14.50 10.75 - 7.00 10.00 12.00 - - 10.92 Note-3 0.50 - - 19.00 12 2.00
12 26.50 4.88 15.00 17.75 12.75 - 8.62 11.12 12.00 - - 12.92 Note-3 0.50 - - 22.50 16 2.13
14 29.50 5.25 16.25 19.50 14.00 - 9.50 11.75 12.00 - - 14.18 Note-3 0.50 - - 25.00 16 2.38
16 32.50 5.75 18.50 21.75 16.00 - 10.25 12.25 12.00 - - 16.19 Note-3 0.50 - - 27.75 16 2.63
18 36.00 6.38 21.00 23.50 18.00 - 10.88 12.88 12.00 - - 18.20 Note-3 0.50 - - 30.50 16 2.88
20 38.75 7.00 23.00 25.25 20.00 - 11.50 14.00 12.00 - - 20.25 Note-3 0.50 - - 32.75 16 3.13
24 46.00 8.00 27.25 30.00 24.00 - 13.00 16.00 12.00 - - 24.25 Note-3 0.50 - - 39.00 16 3.63

Notes:
(1) This dimension is for the large end of the hub, which may be straight or tapered. Taper shall not exceed 7 deg on threaded, slip-on, socket-welding, and lapped flanges.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.25 in. or the tf dimension thickeness without the raised face height.
(3) To be specified by the Customer; Y4 - the length can be 9" (B16.5) or 12" (industry), shall be specified by the customer.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-030 Rev. 1 10/01/2020

Class 2500 Flange

ASME B16.5-2017

Download Specs
ASME B16.5-2017 Class 2500
Length Through Hub Bore Bolt
Nominal Pipe Size/ Bore for LWN Outside Diameter Min. Thickness Diameter of Raised Face Diameter of Hub Hub Diameter Beginning of Chamefer Welding Neck Threaded Lapped Welding Neck Long Welding Neck Minimum Thread Length Threaded Minimum Lapped Welding Neck Corner Bore Radius of Lapped Flange and Pipe Minimum Counter-bore Threaded Flange Bolt Circle Dia Number of Holes Diameter of Holes
J O tf R X A Y1 Y2 Y3 Y4 T B2 B3 r Q
½ 5.25 1.19 1.38 1.69 0.84 1.56 1.56 2.88 9.00 1.12 0.90 Note-3 0.12 0.93 3.50 4 0.88
¾ 5.50 1.25 1.69 2.00 1.05 1.69 1.69 3.12 9.00 1.25 1.11 Note-3 0.12 1.14 3.75 4 0.88
1 6.25 1.38 2.00 2.25 1.32 1.88 1.88 3.50 9.00 1.38 1.38 Note-3 0.12 1.41 4.25 4 1.00
1¼ 7.25 1.50 2.50 2.88 1.66 2.06 2.06 3.75 9.00 1.50 1.72 Note-3 0.19 1.75 5.12 4 1.13
1½ 8.00 1.75 2.88 3.12 1.90 2.38 2.38 4.38 9.00 1.75 1.97 Note-3 0.25 1.99 5.75 4 1.25
2 9.25 2.00 3.62 3.75 2.38 2.75 2.75 5.00 9.00 2.00 2.46 Note-3 0.31 2.50 6.75 8 1.13
2½ 10.50 2.25 4.12 4.50 2.88 3.12 3.12 5.62 9.00 2.25 2.97 Note-3 0.31 3.00 7.75 8 1.25
3 12.00 2.62 5.00 5.25 3.50 - 3.62 6.62 9.00 - 3.60 Note-3 0.38 - 9.00 8 1.38
4 14.00 3.00 6.19 6.50 4.50 - 4.25 7.50 Note-3 - 4.60 Note-3 0.44 - 10.75 8 1.63
5 16.50 3.62 7.31 8.00 5.56 - 5.12 9.00 12.00 - 5.69 Note-3 0.44 - 12.75 8 1.88
6 19.00 4.25 8.50 9.25 6.63 - 6.00 10.75 12.00 - 6.75 Note-3 0.50 - 14.50 8 2.13
8 21.75 5.00 10.63 12.00 8.63 - 7.00 12.50 12.00 - 8.75 Note-3 0.50 - 17.25 12 2.13
10 26.50 6.50 12.75 14.75 10.75 - 9.00 16.50 12.00 - 10.92 Note-3 0.50 - 21.25 12 2.63
12 30.00 7.25 15.00 17.38 12.75 - 10.00 18.25 12.00 - 12.92 Note-3 0.50 - 24.38 12 2.88

Notes:
(1) This dimension is for the large end of the hub, which may be straight or tapered. Taper shall not exceed 7 deg on threaded, slip-on, socket-welding, and lapped flanges.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.06 in. or the tf dimension thickeness without the raised face height.
(3) To be specified by the Customer; Y4 - the length can be 9" (B16.5) or 12" (industry),shall be specified by the customer.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-030 Rev. 1 10/01/2020

Series A

Class 150 Flange

ASME B16.47-2017

Download Specs
ASME B16.47-2017 Series A Class 150 Flange
Minimum Thickness Bolt
Nominal Pipe Size Outside Diameter Welding Neck Blind Length Through Hub Diameter of Hub Diameter of Hub Top Diameter of Raised Face Minimum Fillet Radius Bore Diameter of Bolt Circle Number of Holes Diameter of Holes
O tf tf Y X A R r1 B
26 34.25 2.63 2.63 4.69 26.62 26.00 29.50 0.38 Note-1 31.75 24 1.38
28 36.50 2.75 2.75 4.88 28.62 28.00 31.50 0.44 Note-1 34.00 28 1.38
30 38.75 2.88 2.88 5.32 30.75 30.00 33.75 0.44 Note-1 36.00 28 1.38
32 41.75 3.13 3.13 5.63 32.75 32.00 36.00 0.44 Note-1 38.50 28 1.63
34 43.75 3.19 3.19 5.82 34.75 34.00 38.00 0.50 Note-1 40.50 32 1.63
36 46.00 3.50 3.50 6.13 36.75 36.00 40.25 0.50 Note-1 42.75 32 1.63
38 48.75 3.38 3.38 6.13 39.00 38.00 42.25 0.50 Note-1 45.25 32 1.63
40 50.75 3.50 3.50 6.38 41.00 40.00 44.25 0.50 Note-1 47.25 36 1.63
42 53.00 3.75 3.75 6.69 43.00 42.00 47.00 0.50 Note-1 49.50 36 1.63
44 55.25 3.94 3.94 6.94 45.00 44.00 49.00 0.50 Note-1 51.75 40 1.63
46 57.25 4.00 4.00 7.25 47.12 46.00 51.00 0.50 Note-1 53.75 40 1.63
48 59.50 4.19 4.19 7.50 49.12 48.00 53.50 0.50 Note-1 56.00 44 1.63
50 61.75 4.32 4.32 7.94 51.52 50.00 55.50 0.50 Note-1 58.25 44 1.88
52 64.00 4.50 4.50 8.19 53.25 52.00 57.50 0.50 Note-1 60.50 44 1.88
54 66.25 4.69 4.69 8.44 55.25 54.00 59.50 0.50 Note-1 62.75 44 1.88
56 68.75 4.82 4.82 8.94 57.38 56.00 62.00 0.50 Note-1 65.00 48 1.88
58 71.00 5.00 5.00 9.19 59.38 58.00 64.00 0.50 Note-1 67.25 48 1.88
60 73.00 5.13 5.13 9.38 61.38 60.00 66.00 0.50 Note-1 69.25 52 1.88

Notes:
(1) To be specified by the Customer.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.06 in. or the tf dimension thickeness without the raised face height.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-031 Rev. 0 08/01/2019

Series A

Class 300 Flange

ASME B16.47-2017

Download Specs
ASME B16.47-2017 Series A Class 300 Flange
Minimum Thickness Bolt
Nominal Pipe Size Outside Diameter Welding Neck Blind Length Through Hub Diameter of Hub Diameter of Hub Top Diameter of Raised Face Minimum Fillet Radius Bore Diameter of Bolt Circle Number of Holes Diameter of Holes
O tf tf Y X A R r1 B
26 38.25 3.07 3.25 7.19 28.38 26.00 29.50 0.38 Note-1 34.50 28 1.75
28 40.75 3.32 3.50 7.69 30.50 28.00 31.50 0.44 Note-1 37.00 28 1.75
30 43.00 3.57 3.69 8.19 32.56 30.00 33.75 0.44 Note-1 39.25 28 1.88
32 45.25 3.82 3.88 8.69 34.69 32.00 36.00 0.44 Note-1 41.50 28 2.00
34 47.50 3.94 4.07 9.07 36.88 34.00 38.00 0.50 Note-1 43.50 28 2.00
36 50.00 4.07 4.32 9.44 39.00 36.00 40.25 0.50 Note-1 46.00 32 2.13
38 46.00 4.19 4.19 7.06 39.12 38.00 40.50 0.50 Note-1 43.00 32 1.63
40 48.75 4.44 4.44 7.56 41.25 40.00 42.75 0.50 Note-1 45.50 32 1.75
42 50.75 4.63 4.63 7.82 43.25 42.00 44.75 0.50 Note-1 47.50 32 1.75
44 53.25 4.82 4.82 8.06 45.25 44.00 47.00 0.50 Note-1 49.75 32 1.88
46 55.75 5.00 5.00 8.44 47.38 46.00 49.00 0.50 Note-1 52.00 28 2.00
48 57.75 5.19 5.19 8.75 49.38 48.00 51.25 0.50 Note-1 54.00 32 2.00
50 60.25 5.44 5.44 9.07 51.38 50.00 53.50 0.50 Note-1 56.25 32 2.13
52 62.25 5.63 5.63 9.32 53.38 52.00 55.50 0.50 Note-1 58.25 32 2.13
54 65.25 5.94 5.94 9.88 55.50 54.00 57.75 0.50 Note-1 61.00 28 2.38
56 67.25 6.00 6.00 10.19 57.62 56.00 59.75 0.50 Note-1 63.00 28 2.38
58 69.25 6.19 6.19 10.44 59.62 58.00 62.00 0.50 Note-1 65.00 32 2.38
60 71.25 6.38 6.38 10.69 61.62 60.00 64.00 0.50 Note-1 67.00 32 2.38

Notes:
(1) To be specified by the Customer.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.06 in. or the tf dimension thickeness without the raised face height.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-031 Rev. 0 08/01/2019

Series A

Class 400 Flange

ASME B16.47-2017

Download Specs
ASME B16.47-2017 Series A Class 400 Flange
Minimum Thickness Bolt
Nominal Pipe Size Outside Diameter Welding Neck Blind Length Through Hub Diameter of Hub Diameter of Hub Top Diameter of Raised Face Minimum Fillet Radius Bore Diameter of Bolt Circle Number of Holes Diameter of Holes
O tf tf Y X A R r1 B
26 38.25 3.50 3.88 7.62 28.62 26.00 29.50 0.44 Note-1 34.50 28 1.88
28 40.75 3.75 4.12 8.12 30.81 28.00 31.50 0.50 Note-1 37.00 28 2.00
30 43.00 4.00 4.38 8.62 32.94 30.00 33.75 0.50 Note-1 39.25 28 2.13
32 45.25 4.25 4.56 9.12 35.00 32.00 36.00 0.50 Note-1 41.50 28 2.13
34 47.50 4.38 4.81 9.50 37.19 34.00 38.00 0.56 Note-1 43.50 28 2.13
36 50.00 4.50 5.06 9.88 39.38 36.00 40.25 0.56 Note-1 46.00 32 2.13
38 47.50 4.88 4.88 8.12 39.50 38.00 40.75 0.56 Note-1 44.00 32 1.88
40 50.00 5.12 5.12 8.50 41.50 40.00 43.00 0.56 Note-1 46.25 32 2.00
42 52.00 5.25 5.25 8.81 43.62 42.00 45.00 0.56 Note-1 48.25 32 2.00
44 54.50 5.50 5.50 9.18 45.62 44.00 47.25 0.56 Note-1 50.50 32 2.13
46 56.75 5.75 5.75 9.62 47.75 46.00 49.50 0.56 Note-1 52.75 36 2.13
48 59.50 6.00 6.00 10.12 49.88 48.00 51.50 0.56 Note-1 55.25 28 2.38
50 61.75 6.19 6.25 10.56 52.00 50.00 53.62 0.56 Note-1 57.50 32 2.38
52 63.75 6.38 6.44 10.88 54.00 52.00 55.62 0.56 Note-1 59.50 32 2.38
54 67.00 6.69 6.75 11.38 56.12 54.00 57.88 0.56 Note-1 62.25 28 2.63
56 69.00 6.88 6.94 11.75 58.25 56.00 60.12 0.56 Note-1 64.25 32 2.63
58 71.00 7.00 7.12 12.06 60.25 58.00 62.12 0.56 Note-1 66.25 32 2.63
60 74.25 7.31 7.44 12.56 62.38 60.00 64.18 0.56 Note-1 69.00 32 2.88

Notes:
(1) To be specified by the Customer.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.25 in. or the tf dimension thickeness without the raised face height.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-031 Rev. 0 08/01/2019

Series A

Class 600 Flange

ASME B16.47-2017

Download Specs
ASME B16.47-2017 Series A Class 600 Flange
Minimum Thickness Bolt
Nominal Pipe Size Outside Diameter Welding Neck Blind Length Through Hub Diameter of Hub Diameter of Hub Top Diameter of Raised Face Minimum Fillet Radius Bore Diameter of Bolt Circle Number of Holes Diameter of Holes
O tf tf Y X A R r1 B
26 40.00 4.25 4.94 8.75 29.44 26.00 29.50 0.50 Note-1 36.00 28 2.00
28 42.25 4.38 5.19 9.25 31.62 28.00 31.50 0.50 Note-1 38.00 28 2.13
30 44.50 4.50 5.50 9.75 33.94 30.00 33.75 0.50 Note-1 40.25 28 2.13
32 47.00 4.62 5.81 10.25 36.12 32.00 36.00 0.50 Note-1 42.50 28 2.38
34 49.00 4.75 6.06 10.62 38.31 34.00 38.00 0.56 Note-1 44.50 28 2.38
36 51.75 4.88 6.38 11.12 40.62 36.00 40.25 0.56 Note-1 47.00 28 2.63
38 50.00 6.00 6.12 10.00 40.25 38.00 41.50 0.56 Note-1 45.75 28 2.38
40 52.00 6.25 6.38 10.38 42.25 40.00 43.75 0.56 Note-1 47.75 32 2.38
42 55.25 6.62 6.75 11.00 44.38 42.00 46.00 0.56 Note-1 50.50 28 2.63
44 57.25 6.81 7.00 11.38 46.50 44.00 48.25 0.56 Note-1 52.50 32 2.63
46 59.50 7.06 7.31 11.81 48.62 46.00 50.25 0.56 Note-1 54.75 32 2.63
48 62.75 7.44 7.69 12.44 50.75 48.00 52.25 0.56 Note-1 57.50 32 2.88
50 65.75 7.75 8.00 12.94 52.88 50.00 54.50 0.56 Note-1 60.00 28 3.13
52 67.75 8.00 8.25 13.25 54.88 52.00 56.50 0.56 Note-1 62.00 32 3.13
54 70.00 8.25 8.56 13.75 57.00 54.00 58.75 0.56 Note-1 64.25 32 3.13
56 73.00 8.56 8.88 14.25 59.12 56.00 60.75 0.62 Note-1 66.75 32 3.38
58 75.00 8.75 9.12 14.56 61.12 58.00 63.00 0.62 Note-1 68.75 32 3.38
60 78.50 9.19 9.56 15.31 63.38 60.00 65.25 0.69 Note-1 71.75 28 3.63

Notes:
(1) To be specified by the Customer.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.25 in. or the tf dimension thickeness without the raised face height.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-031 Rev. 0 08/01/2019

Series A

Class 900 Flange

ASME B16.47-2017

Download Specs
ASME B16.47-2017 Series A Class 900 Flange
Minimum Thickness Bolt
Nominal Pipe Size Outside Diameter Welding Neck Blind Length Through Hub Diameter of Hub Diameter of Hub Top Diameter of Raised Face Minimum Fillet Radius Bore Diameter of Bolt Circle Number of Holes Diameter of Holes
O tf tf Y X A R r1 B
26 42.75 5.50 6.31 11.25 30.50 26.00 29.50 0.44 Note-1 37.50 20 2.88
28 46.00 5.62 6.75 11.75 32.75 28.00 31.50 0.50 Note-1 40.25 20 3.13
30 48.50 5.88 7.18 12.25 35.00 30.00 33.75 0.50 Note-1 42.75 20 3.13
32 51.75 6.25 7.62 13.00 37.25 32.00 36.00 0.50 Note-1 45.50 20 3.38
34 55.00 6.50 8.06 13.75 39.62 34.00 38.00 0.56 Note-1 48.25 20 3.63
36 57.50 6.75 8.44 14.25 41.88 36.00 40.25 0.56 Note-1 50.75 20 3.63
38 57.50 7.50 8.50 13.88 42.25 38.00 43.25 0.75 Note-1 50.75 20 3.63
40 59.50 7.75 8.81 14.31 44.38 40.00 45.75 0.81 Note-1 52.75 24 3.63
42 61.50 8.12 9.12 14.62 46.31 42.00 47.75 0.81 Note-1 54.75 24 3.63
44 64.88 8.44 9.56 15.38 48.62 44.00 50.00 0.88 Note-1 57.62 24 3.88
46 68.25 8.88 10.06 16.18 50.88 46.00 52.50 0.88 Note-1 60.50 24 4.13
48 70.25 9.19 10.38 16.50 52.88 48.00 54.50 0.94 Note-1 62.50 24 4.13
50 - - - - - - - - - - - -
52 - - - - - - - - - - - -
54 - - - - - - - - - - - -
56 - - - - - - - - - - - -
58 - - - - - - - - - - - -
60 - - - - - - - - - - - -

Notes:
(1) To be specified by the Customer.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.25 in. or the tf dimension thickeness without the raised face height.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-031 Rev. 0 08/01/2019

Dimensions of

Ring-Joint Facings

ASME B16.47-2017

Download Specs
ASME B16.47-2017 Ring Joint Facings
Nominal Pipe Size for class Groove Dimensions
Groove Number Pitch Diameter Depth
*Note 1		 Width Radius at Bottom Min. Diameter of Raised Portion
300 400 600 900 P E F R K
26 26 26 - R93 29.500 0.500 0.781 0.06 31.88
28 28 28 - R94 31.500 0.500 0.781 0.06 33.88
30 30 30 - R95 33.750 0.500 0.781 0.06 36.12
32 32 32 - R96 36.000 0.562 0.906 0.06 38.75
34 34 34 - R97 38.000 0.562 0.906 0.06 40.75
36 36 36 - R98 40.250 0.562 0.906 0.06 43.00
- - - 26 R100 29.500 0.688 1.188 0.09 32.75
- - - 28 R101 31.500 0.688 1.312 0.09 35.00
- - - 30 R102 33.750 0.688 1.312 0.09 37.25
- - - 32 R103 36.000 0.688 1.312 0.09 39.50
- - - 34 R104 38.000 0.812 1.438 0.09 42.00
- - - 36 R105 40.250 0.812 1.438 0.09 44.25
TOLERANCES
E (depth) +0.016, -0.0
F (width) ± 0.008
P (pitch diameter) ± 0.005
R (raidus at groove bottom) + 0.03, -0.0 for R ≤ 0.06
± 0.03 for R > 0.09
23O ± ½ ° (deg angle)

Notes:
(1) Height of raised portion is equal to the depth of groove dimension E, but is not subjected to the tolerances for E. Full face contour may be used

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-031 Rev. 0 08/01/2019

Series B

Class 75 Flange

ASME B16.47-2017

Download Specs
ASME B16.47-2017 Series B Class 75 Flange
Minimum Thickness Bolt
Nominal Pipe Size Outside Diameter Welding Neck (Note-2) Blind Length Through Hub Diameter of Hub Diameter of Hub Top Diameter of Raised Face Minimum Fillet Radius Bore Diameter of Bolt Circle Number of Holes Diameter of Holes
O tf tf Y X A R r1 B
26 30.00 1.25 1.25 2.25 26.62 26.06 27.75 0.31 Note-1 28.50 36 0.75
28 32.00 1.25 1.25 2.38 28.62 28.06 29.75 0.31 Note-1 30.50 40 0.75
30 34.00 1.25 1.25 2.50 30.62 30.06 31.75 0.31 Note-1 32.50 44 0.75
32 36.00 1.32 1.38 2.69 32.62 32.06 33.75 0.31 Note-1 34.50 48 0.75
34 38.00 1.32 1.44 2.82 34.62 34.06 35.75 0.31 Note-1 36.50 52 0.75
36 40.69 1.38 1.61 3.32 36.81 36.06 38.00 0.38 Note-1 39.06 40 0.88
38 42.69 1.44 1.69 3.44 38.81 38.06 40.00 0.38 Note-1 41.06 40 0.88
40 44.69 1.44 1.69 3.57 40.81 40.06 42.00 0.38 Note-1 43.06 44 0.88
42 46.69 1.50 1.82 3.69 42.81 42.06 44.00 0.38 Note-1 45.06 48 0.88
44 49.25 1.63 1.88 4.07 44.88 44.06 46.25 0.38 Note-1 47.38 36 1.00
46 51.25 1.69 1.94 4.19 46.88 46.06 48.25 0.38 Note-1 49.38 40 1.00
48 53.25 1.75 2.07 4.32 48.88 48.06 50.25 0.38 Note-1 51.38 44 1.00
50 55.25 1.82 2.13 4.50 50.94 50.06 52.25 0.38 Note-1 53.38 44 1.00
52 57.38 1.82 2.19 4.69 52.94 52.06 54.25 0.38 Note-1 55.50 48 1.00
54 59.38 1.88 2.32 4.88 55.00 54.06 56.25 0.38 Note-1 57.50 48 1.00
56 62.00 1.94 2.38 5.25 57.12 56.06 58.50 0.44 Note-1 59.88 40 1.13
58 64.00 2.00 2.44 5.38 59.12 58.06 60.50 0.44 Note-1 61.88 44 1.13
60 66.00 2.13 2.57 5.63 61.12 60.06 62.50 0.44 Note-1 63.88 44 1.13

Notes:
(1) To be specified by the Customer.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.06 in. or the tf dimension thickeness without the raised face height.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GGDL-QA-032 Rev. 0 08/05/2019

Series B

Class 150 Flange

ASME B16.47-2017

Download Specs
ASME B16.47-2017 Series B Class 150 Flange
Minimum Thickness Bolt
Nominal Pipe Size Outside Diameter Welding Neck (Note-2) Blind Length Through Hub Diameter of Hub Diameter of Hub Top Diameter of Raised Face Minimum Fillet Radius Bore Diameter of Bolt Circle Number of Holes Diameter of Holes
O tf tf Y X A R r1 B
26 30.94 1.57 1.69 3.44 26.94 26.06 28.00 0.38 Note-1 29.31 36 0.88
28 32.94 1.69 1.82 3.69 28.94 28.06 30.00 0.38 Note-1 31.31 40 0.88
30 34.94 1.69 1.94 3.88 31.00 30.06 32.00 0.38 Note-1 33.31 44 0.88
32 37.06 1.75 2.07 4.19 33.06 32.06 34.00 0.38 Note-1 35.44 48 0.88
34 39.56 1.88 2.19 4.28 35.12 34.06 36.25 0.38 Note-1 37.69 40 1.00
36 41.62 2.00 2.25 4.57 37.19 36.06 38.25 0.38 Note-1 39.75 44 1.00
38 44.25 2.07 2.44 4.82 39.25 38.12 40.25 0.38 Note-1 42.12 40 1.13
40 46.25 2.13 2.57 5.00 41.31 40.12 42.50 0.38 Note-1 44.12 44 1.13
42 48.25 2.25 2.63 5.19 43.38 42.12 44.50 0.44 Note-1 46.12 48 1.13
44 50.25 2.32 2.75 5.32 45.38 44.12 46.50 0.44 Note-1 48.12 52 1.13
46 52.81 2.38 2.88 5.63 47.44 46.12 48.62 0.44 Note-1 50.56 40 1.25
48 54.81 2.50 3.00 5.82 49.50 48.12 50.75 0.44 Note-1 52.56 44 1.25
50 56.81 2.63 3.13 6.00 51.50 50.12 52.75 0.44 Note-1 54.56 48 1.25
52 58.81 2.69 3.25 6.13 53.56 52.12 54.75 0.44 Note-1 56.56 52 1.25
54 61.00 2.75 3.38 6.32 55.62 54.12 56.75 0.44 Note-1 58.75 56 1.25
56 63.00 2.82 3.50 6.50 57.69 56.12 58.75 0.56 Note-1 60.75 60 1.25
58 65.94 2.88 3.62 6.82 59.69 58.12 60.75 0.56 Note-1 63.44 48 1.38
60 67.94 2.94 3.75 7.00 61.81 60.12 63.00 0.56 Note-1 65.44 52 1.38

Notes:
(1) To be specified by the Customer.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.06 in. or the tf dimension thickeness without the raised face height.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GGDL-QA-032 Rev. 0 08/05/2019

Series B

Class 300 Flange

ASME B16.47-2017

Download Specs
ASME B16.47-2017 Series B Class 300 Flange
Minimum Thickness Bolt
Nominal Pipe Size Outside Diameter Welding Neck (Note-2) Blind Length Through Hub Diameter of Hub Diameter of Hub Top Diameter of Raised Face Minimum Fillet Radius Bore Diameter of Bolt Circle Number of Holes Diameter of Holes
O tf tf Y X A R r1 B
26 34.12 3.44 3.44 5.63 27.62 26.19 29.00 0.56 Note-1 31.62 32 1.38
28 36.25 3.44 3.44 5.81 29.75 28.19 31.00 0.56 Note-1 33.75 36 1.38
30 39.00 3.63 3.63 6.16 32.00 30.25 33.25 0.56 Note-1 36.25 36 1.50
32 41.50 4.00 4.00 6.56 34.00 32.25 35.50 0.62 Note-1 38.50 32 1.63
34 43.62 4.00 4.00 6.75 36.12 34.25 37.50 0.62 Note-1 40.62 36 1.63
36 46.12 4.00 4.00 7.06 38.00 36.25 39.75 0.62 Note-1 42.88 32 1.75
38 48.12 4.31 4.31 7.50 40.00 38.25 41.75 0.62 Note-1 44.88 36 1.75
40 50.12 4.50 4.50 7.75 42.00 40.25 43.88 0.62 Note-1 46.88 40 1.75
42 52.50 4.63 4.63 8.00 44.00 42.31 46.00 0.62 Note-1 49.00 36 1.88
44 54.50 4.94 4.94 8.38 46.19 44.31 48.00 0.62 Note-1 51.00 40 1.88
46 57.50 5.00 5.06 8.69 48.38 46.31 50.00 0.62 Note-1 53.75 36 2.00
48 59.50 5.00 5.25 8.75 50.31 48.31 52.25 0.62 Note-1 55.75 40 2.00
50 61.50 5.38 5.44 9.19 52.38 50.31 54.25 0.62 Note-1 57.75 44 2.00
52 63.50 5.56 5.61 9.50 54.44 52.31 56.25 0.62 Note-1 59.75 48 2.00
54 65.88 5.32 5.81 9.38 56.50 54.31 58.25 0.62 Note-1 62.12 48 2.00
56 69.50 6.00 6.12 10.50 58.81 56.31 60.50 0.69 Note-1 65.00 36 2.38
58 71.94 6.00 6.31 10.75 60.94 58.31 62.75 0.69 Note-1 67.44 40 2.38
60 73.94 5.88 6.50 10.63 62.94 60.31 65.00 0.69 Note-1 69.44 40 2.38

Notes:
(1) To be specified by the Customer.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.06 in. or the tf dimension thickeness without the raised face height.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GGDL-QA-032 Rev. 0 08/05/2019

Series B

Class 400 Flange

ASME B16.47-2017

Download Specs
ASME B16.47-2017 Series B Class 400 Flange
Minimum Thickness Bolt
Nominal Pipe Size Outside Diameter Welding Neck (Note-2) Blind Length Through Hub Diameter of Hub Diameter of Hub Diameter of Raised Face Minimum Fillet Radius Bore Diameter of Bolt Circle Number of Holes Diameter of Holes
O tf tf Y X A R r1 B
26 33.50 3.50 3.50 5.88 27.12 26.00 28.00 0.44 Note-1 30.75 28 1.50
28 36.00 3.75 3.75 6.25 29.12 28.00 30.00 0.50 Note-1 33.00 24 1.63
30 38.25 4.00 4.00 6.69 31.25 30.00 32.25 0.50 Note-1 35.25 28 1.63
32 40.75 4.25 4.25 7.06 33.25 32.00 34.38 0.50 Note-1 37.50 28 1.75
34 42.75 4.38 4.38 7.38 35.38 34.00 36.50 0.56 Note-1 39.50 32 1.75
36 45.50 4.69 4.69 7.88 37.50 36.00 38.62 0.56 Note-1 42.00 28 1.88
38 - - - - - - - - - - - -
40 - - - - - - - - - - - -
42 - - - - - - - - - - - -
44 - - - - - - - - - - - -
46 - - - - - - - - - - - -
48 - - - - - - - - - - - -
50 - - - - - - - - - - - -
52 - - - - - - - - - - - -
54 - - - - - - - - - - - -
56 - - - - - - - - - - - -
58 - - - - - - - - - - - -
60 - - - - - - - - - - - -

Notes:
(1) To be specified by the Customer.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.25 in. or the tf dimension thickeness without the raised face height.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GGDL-QA-032 Rev. 0 08/05/2019

Series B

Class 600 Flange

ASME B16.47-2017

Download Specs
ASME B16.47-2017 Series B Class 600 Flange
Minimum Thickness Bolt
Nominal Pipe Size Outside Diameter Welding Neck (Note-2) Blind Length Through Hub Diameter of Hub Diameter of Hub Diameter of Raised Face Minimum Fillet Radius Bore Diameter of Bolt Circle Number of Holes Diameter of Holes
O tf tf Y X A R r1 B
26 35.00 4.38 4.38 7.12 27.50 26.00 28.62 0.50 Note-1 31.75 28 1.76
28 37.50 4.56 4.56 7.50 29.62 28.00 30.88 0.50 Note-1 34.00 28 1.88
30 40.25 4.94 5.00 8.06 31.75 30.00 33.12 0.50 Note-1 36.50 28 2.00
32 42.75 5.12 5.31 8.50 33.88 32.00 35.25 0.50 Note-1 38.75 28 2.13
34 45.75 5.56 5.68 9.19 36.00 34.00 37.50 0.56 Note-1 41.50 24 2.38
36 47.75 5.75 5.94 9.56 38.12 36.00 39.75 0.56 Note-1 43.50 28 2.38
38 - - - - - - - - - - - -
40 - - - - - - - - - - - -
42 - - - - - - - - - - - -
44 - - - - - - - - - - - -
46 - - - - - - - - - - - -
48 - - - - - - - - - - - -
50 - - - - - - - - - - - -
52 - - - - - - - - - - - -
54 - - - - - - - - - - - -
56 - - - - - - - - - - - -
58 - - - - - - - - - - - -
60 - - - - - - - - - - - -

Notes:
(1) To be specified by the Customer.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.25 in. or the tf dimension thickeness without the raised face height.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GGDL-QA-032 Rev. 0 08/05/2019

Series B

Class 900 Flange

ASME B16.47-2017

Download Specs
ASME B16.47-2017 Series B Class 900 Flange
Minimum Thickness Bolt
Nominal Pipe Size Outside Diameter Welding Neck (Note-2) Blind Length Through Hub Diameter of Hub Diameter of Hub Diameter of Raised Face Minimum Fillet Radius Bore Diameter of Bolt Circle Number of Holes Diameter of Holes
O tf tf Y X A R r1 B
26 40.25 5.31 6.06 10.19 29.25 26.00 30.00 0.44 Note-1 35.50 20 2.63
28 43.50 5.81 6.56 10.88 31.38 28.00 32.25 0.50 Note-1 38.25 20 2.88
30 46.50 6.12 6.93 11.38 33.50 30.00 34.50 0.50 Note-1 40.75 20 3.13
32 48.75 6.31 7.31 11.94 35.75 32.00 36.50 0.50 Note-1 43.00 20 3.13
34 51.75 6.75 7.68 12.56 37.88 34.00 39.00 0.56 Note-1 45.50 20 3.38
36 53.00 6.81 7.94 12.81 40.00 36.00 40.50 0.56 Note-1 47.25 24 3.13
38 - - - - - - - - - - - -
40 - - - - - - - - - - - -
42 - - - - - - - - - - - -
44 - - - - - - - - - - - -
46 - - - - - - - - - - - -
48 - - - - - - - - - - - -
50 - - - - - - - - - - - -
52 - - - - - - - - - - - -
54 - - - - - - - - - - - -
56 - - - - - - - - - - - -
58 - - - - - - - - - - - -
60 - - - - - - - - - - - -

Notes:
(1) To be specified by the Customer.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.25 in. or the tf dimension thickeness without the raised face height.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GGDL-QA-032 Rev. 0 08/05/2019

Class 150 Slip-On

ASME B16.47 Series A

These Slip-on are not covered by B16.47, the list here have been added for completeness

Download Specs
CLASS 150 SLIP-ON ASME B16.47 SERIES A
Bolt
Nominal Pipe Size Outside Diameter Min. Thickness Diameter of Raised Face Diameter of Hub Length Through Hub Bore Minimum Fillet Radius Bolt Circle Dia Number of Holes Diameter of Holes
O tf R X Y1 B1
26 34.25 2.69 29.50 28.25 3.69 26.25 0.38 31.75 24 1.38
28 36.50 3.06 31.50 30.50 3.81 28.25 0.44 34.00 28 1.38
30 38.75 3.31 33.75 32.50 3.94 30.25 0.44 36.00 28 1.38
32 41.75 3.41 36.00 34.50 4.18 32.25 0.44 38.50 28 1.62
34 43.75 3.68 38.00 36.50 4.25 34.25 0.50 40.50 32 1.62
36 46.00 3.96 40.25 38.75 4.56 36.25 0.50 42.75 32 1.62
38 48.75 4.06 42.25 41.25 4.56 38.25 0.50 45.25 32 1.62
40 50.75 4.18 44.25 43.25 4.81 40.25 0.50 47.25 36 1.62
42 53.00 4.43 47.00 45.50 5.06 42.25 0.50 49.50 36 1.62
44 55.25 4.68 49.00 47.75 5.18 44.25 0.50 51.75 40 1.62
46 57.25 4.86 51.00 49.75 5.31 46.25 0.50 53.75 40 1.62
48 59.50 5.06 53.50 52.00 5.56 48.25 0.50 56.00 44 1.62

Notes:
(1) This dimension is for the large end of the hub, which may be straight or tapered. Taper shall not exceed 7 deg on threaded, slip-on.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.06 in. or the tf dimension thickeness without the raised face height.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-035 Rev. 0 09/25/2020

Class 300 Slip-On

ASME B16.47 Series A

These Slip-on are not covered by B16.47, the list here have been added for completeness

Download Specs
CLASS 300 SLIP-ON ASME B16.47 SERIES A
Bolt
Nominal Pipe Size Outside Diameter Min. Thickness Diameter of Raised Face Diameter of Hub Length Through Hub Bore Minimum Fillet Radius Bolt Circle Dia Number of Holes Diameter of Holes
O tf R X Y1 B1
26 38.25 3.12 29.50 30.25 5.37 26.25 0.38 34.50 28 1.75
28 40.75 3.38 31.50 32.75 5.68 28.25 0.44 37.00 28 1.75
30 43.00 3.62 33.75 34.75 6.12 30.25 0.44 39.25 28 1.88
32 45.25 3.88 36.00 36.75 6.56 32.25 0.44 41.50 28 2.00
34 47.50 4.00 38.00 38.75 6.81 34.25 0.50 43.50 28 2.00
36 50.00 4.12 40.25 41.00 7.06 36.25 0.50 46.00 32 2.12
38 46.00 5.31 40.50 39.00 6.06 38.25 0.50 43.00 32 1.62
40 48.75 5.56 42.75 41.25 6.56 40.25 0.50 45.50 32 1.75
42 50.75 5.81 44.75 43.25 6.81 42.25 0.50 47.50 32 1.75
44 53.25 6.06 47.00 45.25 6.86 44.25 0.50 49.75 32 1.88
46 55.75 6.31 49.00 47.25 7.06 46.25 0.50 52.00 28 2.00
48 57.75 6.56 51.25 49.25 7.18 48.25 0.50 54.00 32 2.00

Notes:
(1) This dimension is for the large end of the hub, which may be straight or tapered. Taper shall not exceed 7 deg on threaded, slip-on.
(2) When these flanges are required with flat face, the flat face may be either the full tf dimension thickness plus 0.06 in. or the tf dimension thickeness without the raised face height.

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-035 Rev. 0 09/25/2020

Lap Joint Stub Ends

ASME B16.9-2018

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Lap Joint Stub Ends ASME B16.9-2018
NOMINAL PIPE SIZE OUTSIDE DIAMETER OF BARREL LAP JOINT STUB ENDS
Dia of Lap Radius LENGTH (F)
NPS Max Min G R ASA-A MSSA-A
1/2 0.896 0.809 1.38 0.12 3.00 2.00
3/4 1.106 1.019 1.69 0.12 3.00 2.00
1 1.376 1.284 2.00 0.12 4.00 2.00
1 1/4 1.716 1.629 2.50 0.19 4.00 2.00
1 1/2 1.965 1.869 2.88 0.25 4.00 2.00
2 2.456 2.344 3.62 0.31 6.00 2.50
2 1/2 2.966 2.844 4.12 0.31 6.00 2.50
3 3.596 3.469 5.00 0.38 6.00 2.50
3 1/2 4.096 3.969 5.50 0.38 6.00 3.00
4 4.593 4.469 6.19 0.44 6.00 3.00
5 5.683 5.532 7.31 0.44 8.00 3.00
6 6.743 6.594 8.50 0.50 8.00 3.50
8 8.743 8.594 10.62 0.50 8.00 4.00
10 10.913 10.719 12.75 0.50 10.00 5.00
12 12.913 12.719 15.00 0.50 10.00 6.00
14 14.170 13.969 16.25 0.50 12.00 6.00
16 16.180 15.969 18.50 0.50 12.00 6.00
18 18.190 17.969 21.00 0.50 12.00 6.00
20 20.240 19.969 23.00 0.50 12.00 6.00
22 22.240 21.969 25.25 0.50 12.00 6.00
24 24.240 23.969 27.25 0.50 12.00 6.00

Notes:
(1) Gasket face finish shall be in accordance with ASME B16.5 for raised face flanges
(2) The lap thickness T, shall not be less than nominal pipe wall thickness

Although great care has been taken in compiling the information contained in this catalogue, Western Forge & Flange does not accept responsibility for the consequences of any errors, nor for the effects of any subsequent changes made by the various sources of data. GDL-QA-036 Rev. 0 10/01/2020