COMPANY HEADER
  • ASME B16.47 Welding Neck Flange
  • All dimensions are in inches.
  • 1/4" raised face will be added to the thickness and overall length unless otherwise specified.
  • 38" thru 60" sizes are the same as Series "A".
  • Flat face option available.
  • Extra heavy option available.

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Item #

Nominal Pipe Size

Outside Diameter (O)

Minimum Thickness (T)

Raised Face Diameter (R)

Length Thru Hub (Y)

Hub Diameter (X)

Minimum Fillet Radius (r)

Top of Hub (A)

Bore (B)

Approximate Weight

Bolt Circle (C)

Number of Holes

Diameter of Holes

N/A 26 N/A 33.50 in N/A 3.50 in N/A 28.00 in N/A 5.88 in N/A 27.12 in N/A 0.44 in N/A 26.00 in N/A Specified by purchaser N/A 360 lb N/A 30.75 in N/A 28 N/A 1.50 in
N/A 28 N/A 36.00 in N/A 3.75 in N/A 30.00 in N/A 6.25 in N/A 29.12 in N/A 0.50 in N/A 28.00 in N/A Specified by purchaser N/A 450 lb N/A 33.00 in N/A 24 N/A 1.62 in
N/A 30 N/A 38.25 in N/A 4.00 in N/A 32.25 in N/A 6.69 in N/A 31.25 in N/A 0.50 in N/A 30.00 in N/A Specified by purchaser N/A 530 lb N/A 35.25 in N/A 28 N/A 1.62 in
N/A 32 N/A 40.75 in N/A 4.25 in N/A 34.38 in N/A 7.06 in N/A 33.25 in N/A 0.50 in N/A 32.00 in N/A Specified by purchaser N/A 635 lb N/A 37.50 in N/A 28 N/A 1.75 in
N/A 34 N/A 42.75 in N/A 4.38 in N/A 36.50 in N/A 7.38 in N/A 35.38 in N/A 0.56 in N/A 34.00 in N/A Specified by purchaser N/A 690 lb N/A 39.50 in N/A 32 N/A 1.75 in
N/A 36 N/A 45.50 in N/A 4.69 in N/A 38.62 in N/A 7.88 in N/A 37.50 in N/A 0.56 in N/A 36.00 in N/A Specified by purchaser N/A 855 lb N/A 42.00 in N/A 28 N/A 1.88 in
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