Nipple Application Air Natural Gas Non-Potable Water Propane Steam Fitting Compatibility Schedule 40 Gravity Flow No Inside Diameter 1 5/8 in Material Stainless Steel Material Grade 316 Maximum Operating Pressure 150 psi Maximum Operating Temperature 450 Degrees F Metal Pipe Construction Welded Minimum Operating Temperature -60 Degrees F Nominal Pipe Size 1 1/2 in Outside Diameter 1 7/8 in Overall Length 12 in Pipe Weld Type Continuous Weld Schedule Schedule 40