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Library › Tri-clamp & pipe › ASME B16.5 Class 300 pipe flanges, NPS ½ to 24: dimensions, bolt…

Slip-on flange, NPS 3-1/2 Class 300

Slip-on flange, NPS 3-1/2 Class 300: OD 228.6 mm, raised face dia 139.7 x 1.6 mm, bolt circle 184.1 mm, 8 holes dia 22.2 mm for 0.75 in bolts; bore 103.4 mm, hub dia 133.3 mm drawn straight, length 42.9 mm from the raised face to the hub end

Exact dimensions. True size, no printing tolerance added. Threads are plain cylinders at the major diameter.

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Dimensions

NPS3-1/2
flange OD, in (mm)9.00 (228.6)
thickness incl. raised face, in (mm)1.19 (30.2)
raised-face dia, in (mm)5.50 (139.7)
bolt circle, in (mm)7.25 (184.1)
holes × hole dia, in8 × 0.875
bolt dia, in0.75
hub dia at base, in (mm)5.25 (133.3)
slip-on hub length, in1.69
weld-neck length, in3.13
slip-on bore, in4.07
weld-neck end OD, in4.00
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From the full sheet

ASME B16.5 Class 300 pipe flanges, NPS ½ to 24: dimensions, bolt circle, slip-on and blind: every size, notes, mating features and sources. What are the dimensions of an ASME B16.5 Class 300 flange (OD, thickness, raised face, bolt circle, bolt holes)?

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