Sec.29-232-41. Blow-off equipment  


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  • The blowdown from a boiler or boilers that enters a sanitary system of blowdown which is considered a hazard to life or property shall pass through some form of blowoff equipment that will reduce pressure and temperature as required hereinafter. The temperature of the water leaving the blowoff equipment shall not exceed 150°F. The pressure of the blowdown leaving any type of blowdown equipment shall not exceed 5 psig. The blowoff piping and fitting between the boiler and the blowoff tank shall comply with paragraph PG-59 of the A.S.M.E. Code, Section I. All materials used in the fabrication of boiler blowoff equipment shall comply with Section II of the ASME Code. All blowoff equipment shall be equipped with openings to facilitate cleaning and inspection. Blowoff equipment shall conform to the provision set forth in the rules for National Board Boiler Blowoff Equipment.

(Effective August 25, 1987)