Flange Application Air Non-Potable Water Fitting Side A Connection Type Cup Fitting Side B Connection Type Flange Fitting Side A Copper Tube Size 1 1/2 in Fitting Material Cast Copper Fitting Side A Tube Outer Diameter 1 5/8 in Maximum Operating Pressure 100 psi @ 100 Degrees F Maximum Operating Temperature 400 Degrees F Specific Fitting Shape Flange Adapter Flange Outside Diameter 5 in Number of Bolt Holes 4 Flange Thickness 5/16 in Bolt Hole Diameter 31/50 in