Numbers and Titles



40 10 00 Gas and Vapor Process Piping and Ductwork
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Includespipe, fittings, valves, ductwork, dampers, supports and ancillary equipment for gas and vapor systems.
See23 31 00 for HVAC ductwork. 40 20 00 for industrial liquids process piping. 40 30 00 for industrial solid and mixed materials process piping. 40 40 00 for piping heat tracing, insulation and corrosion protection.
40 11 00Steam Process Piping
40 12 00Compressed Air Process Piping
40 13 00Process Ductwork
40 15 00Combustion System Gas Piping
40 16 00Specialty and High-Purity Gases Piping
40 17 00Welding and Cutting Gases Piping
40 18 00Vacuum Systems Process Piping