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Class 300, Welding Neck, Slip-On and Threaded B16.47, Ser. A

ASME B16.5 Flanges
Weld Neck, Slip-On, Socket Weld, Threaded, Lap Joint, Blind. 1/2" - 24" Class 150, 300, 400, 600, 900, 1500 and 2500 NOTE: Reducing flanges are available in all types and pressures. To order a reducing flange, state the smaller size first, then the outside diameter of the larger size. Example: 1" X 71⁄2" O.D. 150SO RF reducing would be a 3" X 1" Slip-on, Raised Faced Reducing. Or, to simplify, just state the actual pipe sizes in order of larger to smaller. Example: 3" X 1" Slip-on, Raised Faced, Reducing.

Building A Stronger America By Supplying Quality Products “Made In The U.S.A.”
Revised 1-99

3

Class 150 ASME B16.5

Common Dimensions Nominal Size Raised Face Dia. R Welding Neck Socket B1Bore

Length Thru Hub

Outside Dia. O

Thk. C

Fillet Radius r

Slip-on B2

Lap Joint B3

Welding Neck Y1

Slip-on Socket Y2

Lap Joint Y3

1 3

/2 /4 /4 /2 /2 /2

1 1 1 2 2 3 3 4 5 6 8 10 12 14 16 18 20 24

1 1

1

1

3.50 3.88 4.25 4.62 5.00 6.00 7.00 7.50 8.50 9.00 10.00 11.00 13.50 16.00 19.00 21.00 23.50 25.00 27.50 32.00

0.44 0.50 0.56 0.62 0.69 0.75 0.880.94 0.94 0.94 0.94 1.00 1.12 1.19 1.25 1.38 1.44 1.56 1.69 1.88

1.38 1.69 2.00 2.50 2.88 3.62 4.12 5.00 5.50 6.19 7.31 8.50 10.62 12.75 15.00 16.25 18.50 21.00 23.00 27.25

0.12 0.12 0.12 0.19 0.25 0.31 0.31 0.38 0.38 0.44 0.44 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50

0.88 1.09 1.36 1.70 1.95 2.44 2.94 3.57 4.07 4.60 5.66 6.72 8.72 10.88 12.88 14.14 16.16 18.18 20.20 24.25

0.901.11 1.38 1.72 1.97 2.46 2.97 3.60 4.10 4.60 5.69 6.75 8.75 10.92 12.92 14.18 16.19 18.20 20.25 24.25

1.88 2.06 2.19 2.25 2.44 2.50 2.75 2.75 2.81 3.00 3.50 3.50 4.00 4.00 4.50 5.00 5.00 5.50 5.69 6.00

0.62 0.62 0.69 0.81 0.88 1.00 1.12 1.19 1.25 1.31 1.44 1.56 1.75 1.94 2.19 2.25 2.50 2.69 2.88 3.25

0.62 0.62 0.69 0.81 0.88 1.00 1.12 1.19 1.25 1.31 1.44 1.56 1.75 1.94 2.19 3.12 3.44 3.814.06 4.38
4

To be specified by purchaser.

Revised 1-99

Class 150 ASME B16.5

(1/2" TO 3" ONLY)

Drilling Min. Thread Length T Depth of Socket D Dia. Hub at Bevel A Bolt Circle Dia. Holes No. Holes Welding Neck

Approx. Weight Slip-on Thrd. Sock. W. Lap Joint Nominal Size

Hub Dia. X

Blind

0.62 0.62 0.69 0.81 0.88 1.00 1.12 1.19 1.25 1.31 1.44 1.56 1.75 1.94 2.19 2.25 2.502.69 2.88 3.25

0.38 0.44 0.50 0.56 0.62 0.69 0.75 0.81 0.88 0.94 0.94 1.06 1.25 1.31 1.56 1.63 1.75 1.94 2.13 2.50

0.84 1.05 1.32 1.66 1.90 2.38 2.88 3.50 4.00 4.50 5.56 6.63 8.63 10.75 12.75 14.00 16.00 18.00 20.00 24.00

1.19 1.50 1.94 2.31 2.56 3.06 3.56 4.25 4.81 5.31 6.44 7.56 9.69 12.00 14.38 15.75 18.00 19.88 22.00 26.12

2.38 2.75 3.12 3.50 3.88 4.75 5.50 6.00 7.00 7.50 8.50 9.5011.75 14.25 17.00 18.75 21.25 22.75 25.00 29.50

0.62 0.62 0.62 0.62 0.62 0.75 0.75 0.75 0.75 0.75 0.88 0.88 0.88 1.00 1.00 1.12 1.12 1.25 1.25 1.38

4 4 4 4 4 4 4 4 8 8 8 8 8 12 12 12 16 16 20 20

2 2 3 3 4 6 8 10 12 15 19 24 39 52 80 110 140 150 180 260

1 2 2 3 3 5 7 8 11 13 15 19 30 43 64 90 98 130 165 220

1 2 2 3 3 5 7 8 11 13 15 19 30 43 64 105 140 160 195 275

1 2 2 3 4 5 7 913 17 20 26 45 70 110 140 180 220 285 430

1 3

/2 /4 /4 /2 /2 /2

1 1 1 2 2 3 3 4 5 6 8 10 12 14 16 18 20 24

1 1

1

1

Revised 1-99

5

Class 300 ASME B16.5

Common Dimensions Nominal Size Raised Face Dia. R Welding Neck Socket B1

Bore

Length Thru Hub

Outside Dia. O

Thk. C

Fillet Radius r

Slip-on B2

Lap Joint B3

Welding Neck Y1

Slip-on Socket Y2Lap Joint Y3

1 3

/2 /4 /4 /2 /2 /2

1 1 1 2 2 3 3 4 5 6 8 10 12 14 16 18 20 24

1 1

1

1

3.75 4.62 4.88 5.25 6.12 6.50 7.50 8.25 9.00 10.00 11.00 12.50 15.00 17.50 20.50 23.00 25.50 28.00 30.50 36.00

0.56 0.62 0.69 0.75 0.81 0.88 1.00 1.12 1.19 1.25 1.38 1.44 1.62 1.88 2.00 2.12 2.25 2.38 2.50 2.75

1.38 1.69 2.00 2.50 2.88 3.62 4.12 5.00 5.50 6.19 7.31 8.50 10.62 12.75...
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