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Class 1500 Socket Weld Flanges

The socket welding flange derives it name socket weld as the flange has bore and counter bore where in the matching pipe slips on. The Inside diameter of the pipe and the smaller bore of flanges matches amicably to navigate smooth flow and. While the outside diameter of pipe matches perfectly with the bigger bore of flange or the groove of flange to be welded properly to create leak free assembly both from welding inside and by welding outside.

DIMENSIONS OF CLASS 1500 FLANGES (ANSI B 16.5) (in mm)
Nominal
Pipe Size
Flange
Dia
'O'
Dia of
Bolt Circle
'A'
Dia of Bolt Holes
'D'
No. of
Holes
Thk of Flange
'C'
Diameter at Weld Bevel Dia of Hub
'E'
Length Through Hub Bore 'B' Dia of
R/F
R
Depth of
Socket
F
Length
of
Threading
S/O & S/W
Y
W/N
Y
L/J
Y
S/O & S/W
B
L/J
B
1/2'' 15 120.6 82.5 22.2 4 22.2 21.3 38.1 31.7 60.3 31.7 22.3 22.9 34.9 9.5 22.2
3/4'' 20 130.2 88.9 22.2 4 25.4 26.7 44.4 34.9 69.8 34.9 27.7 28.2 42.9 11.1 25.4
1'' 25 149.2 101.6 25.4 4 28.6 33.5 52.4 41.3 73.0 41.3 34.5 35.0 50.8 12.7 28.6
1 ¼'' 32 158.7 111.1 25.4 4 28.6 42.2 63.5 41.3 73.0 41.3 43.2 43.7 63.5 14.3 30.2
1 ½'' 40 177.8 123.8 28.6 4 31.8 48.3 69.8 44.4 82.5 44.4 49.5 50.0 73.0 15.9 31.7
2'' 50 215.9 165.1 25.4 8 38.1 60.4 104.8 57.1 101.6 57.1 62.0 62.5 92.1 17.5 38.1
2 ½'' 65 244.5 190.5 28.6 8 41.3 73.1 123.8 63.5 123.8 63.5 74.7 75.4 104.8 19.0 47.6
3'' 80 266.7 203.2 31.7 8 47.6 88.9 133.3 73.0 117.5 73.0 90.7 91.4 127.0 - 50.8
4'' 100 311.1 241.3 34.9 8 54.0 114.3 161.9 90.5 123.0 90.5 116.1 116.8 157.2 - 57.1
5'' 125 374.6 292.1 41.3 8 73.0 141.2 196.8 104.8 155.6 104.8 143.8 144.5 185.7 - 63.5
6'' 150 393.7 317.5 38.1 12 82.6 168.4 228.6 119.1 171.4 119.1 170.7 171.4 215.9 - 69.8
8'' 200 482.6 393.7 44.4 12 92.1 219.2 292.1 142.9 212.7 142.8 221.5 222.2 269.9 - 76.2
10'' 250 584.2 482.6 50.8 12 107.9 273.0 368.3 158.7 254.0 177.8 276.3 277.4 323.8 - 84.1
12'' 300 673.1 571.5 54.0 16 123.8 323.8 450.8 181.0 282.5 219.1 327.1 328.2 381.0 - 92.1
14'' 350 749.5 635.0 60.5 16 133.4 355.6 495.3 - 298.5 241.3 359.1 360.2 412.7 - -
16'' 400 825.5 704.9 66.5 16 146.1 406.4 552.5 - 311.2 260.4 410.5 411.2 469.9 - -
18'' 450 914.5 774.7 73.5 16 162.0 457.2 596.9 - 327.0 276.2 461.8 462.3 533.4 - -
20'' 500 984.0 831.9 79.5 16 177.8 508.0 641.4 - 355.6 292.1 513.1 514.3 584.2 - -
24'' 600 1168.5 990.6 92.0 16 203.2 609.6 762.0 - 406.4 330.2 615.9 615.9 692.1 - -

Note : Thickness 'C' is inclusive of Raised Face Thickness of 1.65 MM. For Class 1500