New York Codes, Rules and Regulations
Title 16 - DEPARTMENT OF PUBLIC SERVICE
Chapter III - GAS UTILITIES
Subchapter C - Safety
Part 255 - Transmission And Distribution Of Gas
Operations
Section 255.621 - Maximum allowable operating pressure: high-pressure distribution systems
Universal Citation: 16 NY Comp Codes Rules and Regs § 255.621
Current through Register Vol. 47, No. 12, March 26, 2025
(a) No person may operate a segment of a high-pressure distribution system at a pressure that exceeds the lowest of the following pressures, as applicable:
(1) the design pressure of the weakest
element in the segment, determined in accordance with this Part;
(2) 60 psig (414 kPa), for a segment of a
distribution system otherwise designated to operate at over 60 psig (414 kPa),
unless the service lines in the segment are equipped with service regulators or
other pressure limiting devices in series that meet the requirements of section
255.197(c) of
this Part.
(3) 25 psig (172 kPa) in
segments of cast iron pipe in which there are unreinforced bell and spigot
joints;
(4) the pressure limits to
which a joint could be subjected without the possibility of its parting;
or
(5) the pressure determined by
the operator to be the maximum safe pressure after considering the history of
the segment, particularly known corrosion and the actual operating
pressures.
(b) No person may operate a segment of pipeline to which paragraph (a)(5) of this section applies, unless overpressure protective devices are installed on the segment in a manner that will prevent the maximum allowable operating pressure from being exceeded, in accordance with section 255.195 of this Part.
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