Threaded Flange Raised Face 1 1/2 in Nominal Pipe Size Flanged x FNPT 7 in Flange Outside Diameter 1 1/4 in Flange Thickness 7 in Overall Length Steel Black Coated Class Class 1500 For Pipe Schedule XXH 3 600 psi Maximum Operating Pressure 3 600 psi Max Steam Pressure 80 Degrees to 780 Degrees F Number of Bolt Holes 4 1 in Bolt Hole Diameter