Flange Flat 3 in Nominal Pipe Size Socket 7 1/2 in Flange Outside Diameter 1 1/16 in Flange Thickness Schedule 80 Class Class 150 For Pipe Schedule 80 CPVC 150 psi Maximum Operating Pressure 210 Degrees F Number of Bolt Holes 4 6 in Bolt Circle Diameter 11/16 in Bolt Hole Diameter 2 7/16 in Overall Length Gray