Nipple Application Air Natural Gas Non-Potable Water Oil Steam Finish/Coating Black Fitting Compatibility Class 300 Gravity Flow No Inside Diameter 1 in Manufacture Location Globally Sourced Material Steel Maximum Operating Pressure 300 psi @ 150 Degrees F Maximum Operating Temperature 600 Degrees F Maximum Steam Pressure 3141 psi @ 650 Degrees F Metal Pipe Construction Seamless Minimum Operating Temperature -20 Degrees F Nominal Pipe Size 1 in Outside Diameter 1 5/16 in