Description
Features:
The Pressure/Vacuum vent is designed to provide
pressure and vacuum relief in underground storage
tanks (UST) and above ground storage tanks (AST)
The pressure/vacuum (P/V) vents incorporate
three (3) separate valves to control over-pressure
and vacuum conditions that arise in storage tanks.
the three (3) valve system provides the necessary
protection and durability needed in UST and AST
vent caps.
The over pressure valve and vacuum valve is
diaphragm operated and provides ten (10) times
more sealing force than gravity devices. It
consistently opens at pressure or vacuum setting.
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