Sigma Manufacturing is an ASME U, S, and R, AWS D1.1, and CWB W47.1 certified fabrication facility. Specializing in all manner of process equipment fabrication, such as piping assemblies, skid packages, fired process heaters, convection coils, radiant coils, associated equipment housings, and total equipment assembly. • PROCESS EQUIPMENT - ASME U, S, & R • SKIDS - ASME CERTIFIED B31.1 & B31.3 • AUTOMATION - UL LISTED PANEL SHOP 40,000 square foot fabrication facility that includes 36’ under hook, 50 tons of lifting capacity in bay #1 and 60 tons of capacity in bay #2.