33.1-14-09-04. Nonstandard cast iron boilers.

1. The maximum allowable working pressure of a noncode boiler composed principally of cast iron may not exceed fifteen pounds [103 kilopascals] for steam service or thirty pounds [206.85 kilopascals] for hot water service.

2. The maximum allowable working pressure of a nonstandard boiler having cast iron shell or heads and steel or wrought iron tubes may not exceed fifteen pounds [103 kilopascals] for steam service or thirty pounds [206.85 kilopascals] for water service.

History: Effective July 1, 2020. General Authority: NDCC 23.1-16-05 Law Implemented: NDCC 23.1-16-05