Minnesota Administrative Rules
1346.0602 SECTION 602 PLENUMS.
IMC section 602.2.1 is amended by adding a subsection to read as follows:
Section 602.2.1.9. Piping in plenums. Piping carrying flammable or combustible gases or liquids in a plenum must have all connections made by welding or brazing. No flanges, valves, threaded fittings, unions, or connectors are permitted.
History:
34 SR 537; 44 SR 1085
Published Electronically:
April 22, 2020
Official Publication of the State of Minnesota
Revisor of Statutes