Slip-On Flange Raised Face 2 1/2 in Nominal Pipe Size Flanged x Slip-On 7 1/2 in Flange Outside Diameter 1 in Flange Thickness 1 1/2 in Overall Length Stainless Steel 304/304L Class Class 300 720 psi Maximum Operating Pressure 300 psi Max Steam Pressure Number of Bolt Holes 8 5 7/8 in Bolt Circle Diameter 7/8 in Bolt Hole Diameter