N.Y. Comp. Codes R. & Regs. tit. 12, § 14-9.23
Attachment of piping and external piping.
Department of Labor
- (a) Piping connected to the outlet of a boiler for any purpose, and which comes within the requirement of this Part, shall be attached by screwing, welding or other means acceptable to the ASME Code.
- (b) Fusion welding for sealing purposes at the juncture of bolted joints may be used.
- (c) Welding may be used to attach piping to nozzles or fittings and shall comply with ASME requirements.
(d) All welded piping external to the boiler falling within Code jurisdiction shall conform to the provisions required by ASME and shall be fabricated and/or installed by the manufacturer or contractor authorized to use one or more of the ASME Code symbols shown below and within the scope authorized for each symbol:
- (e) Such piping contractors or manufacturers shall be responsible for the quality of the welding done by their organizations and for conformance to ASME requirements of procedures and welders.
- (f) Fabricated and/or installed welded piping shall be inspected by an authorized inspector at such stages of the work as the inspector may elect. For main steam, feed inlet, blowoff and other connections over two inch pipe size the symbol used, together with the manufacturer's or contractor's name and serial number shall be stamped on the pipe, valve or fitting adjacent to the joint farthest from the boiler. For piping operating at temperatures above 500° Fahrenheit, the symbol may be stamped on a nameplate which is irremovably attached by welding, provided such welding is postweld heat treated, or on a circular metal band at least ⅛ inch thick. This band around the pipe shall be secured in such a manner as to prevent it from slipping off during handling and installation. Upon completion of the work a Form P-4A, partial data report, shall be executed in accordance with ASME requirements. American slip on flanges up to and including four inch pipe size may be attached to piping or boiler nozzles and shall conform to ASME requirements.
- (g) The minimum number of threads that a pipe or fitting shall screw into a tapped hole shall conform to ASME requirements.
)
)