Protection of the Environment Operations (Clean Air) Regulation 2022
93Pressure vacuum valves for tank above ground
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93 Pressure vacuum valves for tank above ground
93 Pressure vacuum valves for tank above ground
(1) A small storage tank that is above the ground must have pressure vacuum valves fitted on the atmospheric vents of the tank.
(2) The pressure vacuum valves must be set to be closed when the pressure in the tank is between 15kPa above, and 0.5kPa below, ambient pressure.
(3) Subsection (2) does not apply to a small storage tank installed before 1 May 1982.