McMaster 4638K152 Low Pressure Pipe Fitting, Galvanized Iron, 90° Elbow Connector, 3 NPT Female, Class 150 6501QL Pipe and Tube Fabrication Pipe and Tube Fabrication Relay Socket The galvanized finish on these fittings provides fair corrosion resistance Pressure Rating Low Pressure Shape 90° Elbow Fitting Type Connector Fitting Connection NPT Female Pipe Size 3 Pressure Class 150 Material Galvanized Iron Maximum Pressure @ Temperature 150 psi @ 72° F Maximum Steam Pressure @ Temperature 150 psi @ 350° F Certification UL Listed Connects To Pipe Class 150 For Pipe Material Galvanized Steel For Pipe Schedule 40 For Use With Air