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EPRV-C.DOC 8/23/2013
Vent Operation
Both the Enardo EPRV and EPRV-V maintain a tight seal until system pressure, or
vacuum, exceeds the set pressure of the vent. To adjust the set pressure, a series of
weights may be stacked onto the lid assembly. When over-pressure occurs the weighted
lid assembly lifts, breaking the seal between the seat and seal portion of the lid assembly.
This allows vapors to pass through the vent orifice and relieve pressure build up. The
vent reseals upon relief and remains sealed.
It is important to know that relieving vapors near the set pressure in a continuous manner
may cause the lid assembly to flutter, or oscillate. This is a common occurrence in
products of this type in the industry. Operating the vent with flutter, or oscillation, over
time may cause premature vent damage or wear. Feel free to contact Enardo with any
questions.
Pressure Flow
Vacuum Flow
