Breather Valve
Breather valves, also known as pressure/vacuum relief valves, are safety devices installed on storage tanks to protect them from excessive pressure or vacuum conditions. They allow the tank to "breathe," preventing the tank from rupturing or collapsing due to internal pressure changes caused by filling, emptying, or thermal expansion and contraction.
Overview
Key Features and Functions:
Pressure Relief: Allows excess internal pressure to vent out of the tank, preventing overpressure.
Vacuum Relief: Allows air to enter the tank when internal pressure drops below the atmospheric pressure, preventing the tank from imploding.
Set Pressure: Designed to open at predetermined pressure and vacuum settings, providing precise control.
Materials: Typically made from materials resistant to corrosion and suitable for the stored product, such as stainless steel, aluminum, or high-performance plastics.
Types: Available in various designs, including weighted pallet valves, spring-loaded valves, and diaphragm valves.
Flame Arresters: Often integrated with flame arresters to prevent the ignition of flammable vapors in case of an external fire.
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