522 CMR, § 7.05 - Pressure Relief Valves
(1) All pressure
relief valves on Air Tanks shall conform to the ASME and National Board Codes
as adopted by
522 CMR
7.00.
(2)
All tanks, the contents of which are likely to cause interference with the
operation of a pressure relief valve if attached directly to the Air Tank,
shall have the pressure relief valve connected in such a manner as to avoid
such interference. Intercoolers and aftercoolers shall not be classed as
primary vessels, but shall be protected by adequate pressure relief
valves.
(3) When the pressure
relief valve covered by
522 CMR
7.00 is exposed to the elements and freezing
temperatures, they shall be located on the discharge pipe from the compressor
as near to the Air Tank as practical.
Notes
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