ANSI B16.5 Class 1500 Threaded Flanges

    • All dimensions are in inches
    • These flanges will be furnished with a 1/4″ raised face unless otherwise specified.
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(Size Chart)

Nominal Pipe Size Outside Diameter (O) Bolt Circle (W) Raised Face Diameter (R) Number of Holes Diameter of Holes Hub Diameter (X) Thickness (T) Length Thru Hub (Y) Approximate Weight (lbs)
1/2 4.75 3.25 1.38 4 0.88 1.50 0.88 1.25 4
3/4 5.12 3.50 1.69 4 0.88 1.75 1.00 1.38 5
1 5.88 4.00 2.00 4 1.00 2.06 1.12 1.62 8
1 1/4 6.25 4.38 2.50 4 1.00 2.50 1.12 1.62 9
1 1/2 7.00 4.88 2.88 4 1.13 2.75 1.25 1.75 12
2 8.50 6.50 3.62 8 1.00 4.12 1.50 2.25 25
2 1/2 9.62 7.50 4.12 8 1.13 4.88 1.62 2.50 36

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