Maximum Actual Operating Pressure: High-Pressure Distribution Systems

§ 192.622 Maximum Actual Operating Pressure: High-Pressure Distribution Systems#

(a)Each operator shall establish a maximum actual operating pressure if the actual operating pressure is less than the established maximum allowable operating pressure. The maximum actual operating pressure will be the pressure for orifice sizing in customer regulators as required by § 192.197. The maximum actual operating pressure may be increased to a pressure not exceeding the maximum allowable operating pressure during emergency operating conditions. Normal seasonal gas demands are not considered emergency operating conditions. Upon termination of the emergency the pressure must be reduced to a pressure not exceeding the established maximum actual operating pressure. The maximum actual operating pressure shall be posted on system maps, drawings, regulator stations or other appropriate records.#

(b)Before increasing the established maximum actual operating pressure, under normal conditions, the operator shall:#

(1)Calculate the rated capability of each overpressure control device installed at each customer's service.#

(2)If the overpressure control device is not capable of maintaining a safe pressure to the customer's gas utilization equipment, a new or additional device must be installed to provide a safe pressure to the customer.#