  Quik-Vent
Vacuum/Pressure Relief Valve
Series 684
Controls unsafe pressure conditions
The Quik-Vent vacuum / pressure relief valve is an excellent safety device for mounting on storage silos, bins or any other container to relieve excessive or unwanted air pressure that might be generated by a pneumatic conveying system or other process equipment.
Unsafe conditions are easily controlled by the Quik-Vent vacuum/pressure relief valve. Generous ports quickly exhaust air or gases to protect against sudden positive or negative pressure conditions.
Optional sensors are also available to provide an electrical signal to indicate when over or under pressure conditions are present.
How the Quik-Vent
vacuum/pressure relief valve works
When air pressure
exceeds the preset setting of the Quik-Vent vacuum/pressure relief
valve, the exhaust port instantaneously opens and expels any
excessive positive pressure into the atmosphere. Then, after
the preset conditions are achieved, the exhaust port closes and
seals. When negative pressure exceeds the preset setting, the
exhaust port instantaneously opens to allow atmospheric air to
enter the container.
The opening and
closing of the Quik-Vent vacuum/pressure relief valve exhaust
ports is achieved by spring tension, which can be either factory
preset or adjusted in the field.
Construction
features
The Quik-Vent vacuum/pressure
relief valve can be installed indoors or outdoors. The very durable
molded cover is made of polyethylene to provide excellent corrosion
and weather resistance.
The Quik-Vent vacuum/pressure
relief valve tolerates fine, dusty granular powders and comes
pre-assembled and ready for installation. It is simple to install
and easy to maintain.
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