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  • All dimensions are in inches.
  • These flanges will be furnished with a 1/4" raised face unless otherwise specified.
  • Flat face option available.

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Unit of Measure
Items
ANSI B16.5 Class 400 Weld Neck Flange

ANSI B16.5 Class 400 Welding Neck Flanges

ANSI B16.5 Class 400 Weld Neck Flange

ANSI B16.5 Class 400 Welding Neck Flanges

ANSI B16.5 Class 400 Weld Neck Flange

ANSI B16.5 Class 400 Welding Neck Flanges

ANSI B16.5 Class 400 Weld Neck Flange

ANSI B16.5 Class 400 Welding Neck Flanges

ANSI B16.5 Class 400 Weld Neck Flange

ANSI B16.5 Class 400 Welding Neck Flanges
Flange Type N/A Welding Neck
Nominal Pipe Size N/A 1/2 N/A 3/4 N/A 1 N/A 1 1/4 N/A 1 1/2
Outside Diameter (O) N/A 3.75 in N/A 4.63 in N/A 4.88 in N/A 5.25 in N/A 6.13 in
Thickness (T) N/A 0.56 in N/A 0.63 in N/A 0.69 in N/A 0.81 in N/A 0.88 in
Raised Face Diameter (R) N/A 1.38 in N/A 1.69 in N/A 2.00 in N/A 2.50 in N/A 2.88 in
Length Thru Hub (Y) N/A 2.06 in N/A 2.25 in N/A 2.44 in N/A 2.63 in N/A 2.75 in
Hub Diameter (X) N/A 1.50 in N/A 1.88 in N/A 2.13 in N/A 2.50 in N/A 2.75 in
Bore (B) N/A Specified by purchaser
Approximate Weight N/A 2 lb N/A 4 lb N/A 4 lb N/A 6 lb N/A 8 lb
Bolt Circle (C) N/A 2.63 in N/A 3.25 in N/A 3.50 in N/A 3.88 in N/A 4.50 in
Number of Holes N/A 4
Diameter of Holes N/A 0.63 in N/A 0.75 in N/A 0.75 in N/A 0.75 in N/A 0.88 in