VacuumReliefValve

AdjustableVacuumReliefValve

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ANVER easy adjustable Vacuum Relief Valves (VRV) are designed to protect vacuum pumps from internal damage due to a dead-head situation. VRVs allow a small amount of air into the vacuum pump, which cools the temperature and, in doing so, prevents overheating and possible damage. VRVs can be preset to a preferred vacuum level in order to provide the proper amount of air to cool and protect your vacuum pump. You can set a predetermined vacuum level using a vacuum gauge in the system. The VRV can be mounted anywhere in the system manifold. Consider mounting the VRV close to the vacuum pump and gauge to make adjustments easily as needed. ANVER recommends purchasing vacuum gauges shown in specifications below. VRVs are an inexpensive way to insure your expensive regenerative vacuum pump.

Pressure VacuumReliefValvefor storage tank

Valve Settings: In most cases, initial settings for the valve should be set slightly below the pump’s maximum vacuum level. Application types and user preferences determine what the maximum level should be. Load capacity must be adjusted accordingly, based on achieved vacuum at the vacuum attachment point.

Recommended for most applications. VRVs are ideal for vacuum handling of non-porous loads, in addition to many other applications that may cause a vacuum pump to dead-head or burnout.

Need more Flow? If you need to get to a lower vacuum level or flow rate than the operational range from 6 in. to 21 in. of Hg, you can use a larger size VRV or double them up (shown below).  Using a vacuum gauge and flow meter is recommended to set the valves in critical applications.