Sec.29-232-93. Pressure gages

(a) Each steam boiler shall have a steam pressure gage connected to the steam space of the boiler itself or to its water column or on steam pipe near the boiler. The graduations of the steam gage shall not be less than thirty PSI nor more than sixty PSI.

(b) Each hot water boiler shall have a pressure or altitude gage connected to it or to its flow connection in such a manner that it cannot be shut off from the boiler except by a cock with tee or level handle placed on the pipe near the gage. The handle of the cock shall be parallel to the pipe in which it is located when the cock is open. The scale on the dial of the pressure or altitude gage shall be graduated to not less than one and one-half nor more than three times the pressure at which the safety relief valve is set. Piping or tubing for pressure or altitude gage connections shall be of nonferrous metal when smaller than one inch pipe size.

(Effective August 25, 1987)