Slip-On Flange Raised Face 1 1/2 in Nominal Pipe Size Flanged x Slip-On 6 1/8 in Flange Outside Diameter 3/4 in Flange Thickness 1 3/16 in Overall Length Stainless Steel 304/304L Class Class 300 720 psi Maximum Operating Pressure 300 psi Max Steam Pressure Number of Bolt Holes 4 3 7/8 in Bolt Circle Diameter 7/8 in Bolt Hole Diameter