Weld Neck Flange Raised Face 6 in Nominal Pipe Size Flanged x Weld Neck 12 1/2 in Flange Outside Diameter 1 3/8 in Flange Thickness 12 1/2 in Overall Length Steel Black Coated Class Class 300 For Pipe Schedule 80 725 psi Maximum Operating Pressure 725 psi Max Steam Pressure 80 Degrees to 780 Degrees F Number of Bolt Holes 12 3/4 in Bolt Hole Diameter