Numbers and Titles



Includespressurized tanks and vessels for liquid or gas storage and/or processing for industrial, commercial, and municipal processes.
Alternate Terms/AbbreviationsFRP: fiberglass-reinforced plastic. GRP: glass-fiber-reinforced plastic.
See23 13 00 for facility fuel storage tanks. 43 41 00 for non-pressurized tanks and vessels. 46 31 43 for storage tanks for carbon dioxide gas used in water and wastewater treatment. 46 31 56 for liquid oxygen storage and feed equipment associated with ozone systems. 46 51 63 for storage tanks used with pure-oxygen generating equipment.
43 42 11Cast Iron Pressure Tanks
43 42 13Ductile Iron Pressure Tanks
43 42 21Welded Steel Pressure Tanks
43 42 23Glass-lined Steel Pressure Tanks
43 42 26Welded Steel Gas Storage Sphere
43 42 33Stainless Steel Pressure Tanks
43 42 36Aluminum Pressure Tanks
43 42 41Metallic Specialty Pressure Tanks
43 42 53Fiberglass Reinforced Plastic Pressure Tanks
43 42 83Non-metallic Specialty Pressure Tanks