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  • All dimensions are in inches.
  • These flanges will be supplied with a 1/16" raised face unless otherwise specified.
  • Flat face option available.

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Unit of Measure
Items
Industry Standard Welding Neck Flange

Industry Standard Class 75 Welding Neck Flanges

Industry Standard Welding Neck Flange

Industry Standard Class 75 Welding Neck Flanges

Industry Standard Welding Neck Flange

Industry Standard Class 75 Welding Neck Flanges

Industry Standard Welding Neck Flange

Industry Standard Class 75 Welding Neck Flanges

Industry Standard Welding Neck Flange

Industry Standard Class 75 Welding Neck Flanges
Nominal Pipe Size N/A 26 N/A 28 N/A 30 N/A 32 N/A 34
Outside Diameter (O) N/A 31.50 in N/A 33.50 in N/A 35.50 in N/A 38.25 in N/A 40.25 in
Thickness (T) N/A 1.25 in
Raised Face Diameter (R) N/A 28.63 in N/A 30.63 in N/A 32.63 in N/A 35.00 in N/A 37.00 in
Length Thru Hub (Y) N/A 3.00 in N/A 3.00 in N/A 3.00 in N/A 3.25 in N/A 3.25 in
Base of Hub Diameter (X) N/A 27.13 in N/A 29.13 in N/A 31.13 in N/A 33.38 in N/A 35.38 in
Diameter of Hub at Bevel (A) N/A 26.00 in N/A 28.00 in N/A 30.00 in N/A 32.00 in N/A 34.00 in
Bore (B) N/A Specified by purchaser
Approximate Weight N/A 98 lb N/A 105 lb N/A 110 lb N/A 140 lb N/A 150 lb
Bolt Circle (C) N/A 29.63 in N/A 31.63 in N/A 33.63 in N/A 36.13 in N/A 38.13 in
Number of Holes N/A 32 N/A 36 N/A 36 N/A 36 N/A 40
Diameter of Holes N/A 1.00 in N/A 1.00 in N/A 1.00 in N/A 1.13 in N/A 1.13 in