(b) Hand-controlled bypasses around reducing valves may be used if the bypass has no greater capacity than the reducing valve. (a) The installation of pressure reducing stations must comply with ASME B 31.1. (b) The maintenance and inspection of boilers must comply with ANSI/NB 23. (a) The installation of boiler controls performed after February 4, 2006, must comply with ASME CSD 1 and NFPA 85. Repairs may not be made without Department approval. The shell or drum of a boiler or unfired pressure vessel containing a lap seam crack along a longitudinal riveted joint shall be immediately taken out of service.
Code § 3a.162 (relating to portable boilers).Ī boiler or unfired pressure vessel stamped with the ASME symbol and another state stamp may be installed and operated if a National Board inspector witnessed its construction and the shop data report is provided to the Department with a completed Department-provided intent to install form under § 3a.98 (relating to plan approval). (g) Stamping required under this section must be exposed at all times and may not be concealed by paint or lagging.
(f) The Department may accept a boiler or unfired pressure vessel with a registration number from another state for use in this Commonwealth if a National Board inspector inspected and approved the boiler or unfired pressure vessel during construction. (e) A boiler or unfired pressure vessel that is not built to the ASME Code may be stamped with a Pennsylvania special number if it meets the requirements of section 7(b) of the act.
(d) A new boiler or unfired pressure vessel installed in this Commonwealth must be stamped with an identifying serial number consisting of the keystone symbol and figures, which may not be less than 5/16 inches in height and arranged as follows: (c) National Board registration and stamping requirements do not apply to cast iron boilers, which are constructed under ASME Code provisions and do not require final inspection by a National Board inspector. The stamping may be applied to a nameplate in accordance with the code of construction. (b) A boiler or unfired pressure vessel built to the ASME Code must be stamped with the appropriate ASME symbol, the manufacturers information in accordance with stamping requirements of the code of construction, and its National Board registration number. (a) A boiler or unfired pressure vessel destined for use in this Commonwealth must be built to the applicable ASME code of construction or meet the requirements of section 7 of the act (35 P. Compliance with the ASME Code for installations of unfired pressure vessels. INSTALLATIONS OF UNFIRED PRESSURE VESSELS 3a.71. Compliance with the ASME Code for low-pressure boilers. INSTALLATIONS OF LOW-PRESSURE HEATING BOILERS 3a.61. Compliance with the ASME Code for power boilers. Subchapter B. REQUIREMENTS FOR BOILERS AND UNFIRED PRESSURE VESSELS GENERAL REQUIREMENTS