N.Y. Comp. Codes R. & Regs. tit. 9 § 1503.4

Current through Register Vol. 46, No. 50, December 11, 2024

Section 1503.4 - Piping systems

(a) New sprinkler systems shall be capable of withstanding a water pressure of at least 175 pounds per square inch. All parts of such systems, including tanks, that are exposed to the weather or subjected to freezing shall be designed, installed and protected so as to withstand damage and to function in a satisfactory manner.

(b) Pipe sizes for new sprinkler systems shall conform to the requirements of the generally accepted standards listed in the appendix *, except that with the approval of the department the supply main need be only as large as the largest pipe in the system but in no case less than two inches in size.

N.Y. Comp. Codes R. & Regs. Tit. 9 § 1503.4