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

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ANSI B16.5  Socket Weld Flange
Unit of Measure
1 

Item #

Nominal Pipe Size

Outside Diameter (O)

Thickness (T)

Raised Face Diameter (R)

Length Thru Hub (Y)

Hub Diameter (X)

Bore (B1)

Bore (B2)

Depth of Socket (D)

Approximate Weight

Bolt Circle (C)

Number of Holes

Diameter of Holes

0H300SWAN N/A 1/2 N/A 3.75 in N/A 0.56 in N/A 1.38 in N/A 0.88 in N/A 1.50 in N/A 0.62 in N/A 0.88 in N/A 0.38 in N/A 2 lb N/A 2.63 in N/A 4 N/A 0.63 in
3Q300SWAN N/A 3/4 N/A 4.63 in N/A 0.63 in N/A 1.69 in N/A 1.00 in N/A 1.88 in N/A 0.82 in N/A 1.09 in N/A 0.44 in N/A 3 lb N/A 3.25 in N/A 4 N/A 0.75 in
01300SWAN N/A 1 N/A 4.88 in N/A 0.69 in N/A 2.00 in N/A 1.06 in N/A 2.13 in N/A 1.05 in N/A 1.36 in N/A 0.50 in N/A 3 lb N/A 3.50 in N/A 4 N/A 0.75 in
1Q300SWAN N/A 1 1/4 N/A 5.25 in N/A 0.75 in N/A 2.50 in N/A 1.06 in N/A 2.50 in N/A 1.38 in N/A 1.70 in N/A 0.56 in N/A 4 lb N/A 3.88 in N/A 4 N/A 0.75 in
1H300SWAN N/A 1 1/2 N/A 6.13 in N/A 0.81 in N/A 2.88 in N/A 1.19 in N/A 2.75 in N/A 1.61 in N/A 1.95 in N/A 0.63 in N/A 6 lb N/A 4.50 in N/A 4 N/A 0.88 in
02300SWAN N/A 2 N/A 6.50 in N/A 0.88 in N/A 3.63 in N/A 1.31 in N/A 3.31 in N/A 2.07 in N/A 2.44 in N/A 0.69 in N/A 7 lb N/A 5.00 in N/A 8 N/A 0.75 in
2H300SWAN N/A 2 1/2 N/A 7.50 in N/A 1.00 in N/A 4.13 in N/A 1.50 in N/A 3.94 in N/A 2.47 in N/A 2.94 in N/A 0.75 in N/A 10 lb N/A 5.88 in N/A 8 N/A 0.88 in
03300SWAN N/A 3 N/A 8.25 in N/A 1.13 in N/A 5.00 in N/A 1.69 in N/A 4.63 in N/A 3.07 in N/A 3.57 in N/A 0.81 in N/A 13 lb N/A 6.63 in N/A 8 N/A 0.88 in
Unit of Measure
1