Current through Register Vol. 55, No. 1, January 4, 2025
Section 23.121 - Fire protection devices(a) As a means of fire extinguishing in any drycleaning, dyeing, tumbler or drying room, the rooms shall be equipped with steam pipes which shall be separate from and other than the pipes used for heating or power and shall be located near the ceiling. In these pipes there shall be not less than two openings for each room, all of which shall point toward the ceiling. The steam supply for these pipes shall be continually available for service while the plant is in operation and shall be sufficient to completely fill the room space in less than one minute. An outside screw and yoke valve shall be placed in the steam service lines or other lines outside of these rooms, which shall be accessible for operation in case of fire.(b) An approved system, using a fire detergent chemical or gas or an approved sprinkler system may be installed in lieu of a steam extinguishing system.(c) A steam fire protection system shall be extended and connected to all washers and tumblers so that the fire extinguishing agent may be admitted to the interior of the machine. The equipment shall provide a steam jet not less than 3/4 inch from a continuously available steam supply at a pressure not less than 15 pounds per square inch.