N.Y. Comp. Codes R. & Regs. Tit. 12 §§ 14-11.3

Current through Register Vol. 46, No. 53, December 31, 2024

Section 14-11.3 - Specifications for shells, heads

(a) Steel plates subject to pressure in any part of a miniature boiler shall be of firebox or flange grade. The plates for shells or heads shall be of not less than one-quarter inch in thickness, except that seamless shells shall be not less than three-sixteenths inch in thickness. Heads used as tube sheets, with tubes rolled in, shall be at least five-sixteenths inch in thickness.

(b) Steam boiler parts of not over 600 cubic inches in volume may be made of cast copper or bronze having a copper content of not less than 90 percent and wall thickness of not less than one-quarter inch. Such steam boiler parts shall be equipped with at least one brass washout plug of not less than one-half inch iron-pipe size and shall be tested to a hydrostatic pressure of 600 psi.