{"id":16927,"date":"2018-12-04T11:20:11","date_gmt":"2018-12-04T15:20:11","guid":{"rendered":"https:\/\/www.equilibar.com\/?page_id=16927"},"modified":"2023-12-19T14:21:49","modified_gmt":"2023-12-19T18:21:49","slug":"vacuum-pilot-regulators","status":"publish","type":"page","link":"https:\/\/www.equilibar.com\/es\/vacuum-regulators\/vacuum-pilot-regulators\/","title":{"rendered":"How to Control Pilot Vacuum Pressure on Equilibar Vacuum Regulators"},"content":{"rendered":"

The Equilibar\u00ae vacuum regulator (EVR) is dome-loaded by vacuum pressure on top of the diaphragm and controls the inlet vacuum pressure to closely equal this “pilot vacuum pressure”. The pilot vacuum pressure on the dome may be regulated using a manual or an electronic vacuum regulator and may be operated in open loop or closed loop control schemes. The vacuum pilot control choice depends on the application performance requirements.<\/p>

Note:<\/strong><\/em> While Equilibar EVRs are compatible with extreme chemical conditions, our vacuum pilot regulators and fittings are not. The flow through the vacuum pilot is from atmospheric to the inlet of the vacuum supply pump, so no chemicals should enter the vacuum pilot during normal operation. There is always a small bleed through the vacuum pilot regulators. Please see the bottom of our safety design page<\/a> for more information. If you are using extreme chemicals, please speak to an application engineer<\/a> for details.<\/p>

Learn more about how our\u00a0vacuum regulators work<\/a>.<\/p>

The table below shows the benefits of the various vacuum pilot control layouts. For information about how to install a vacuum pilot regulator, watch the video lower down on this page.<\/p>

Contact an Equilibar application engineer<\/a> with questions or for help determining the best design for your vacuum application.<\/p> <\/div>


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Request Information<\/a><\/div><\/div>

Vacuum Pilot Control Options<\/h2>
<\/th> Open Loop Control<\/th> Closed Loop Control<\/th> <\/tr> <\/thead>
Option Benefits<\/strong><\/td>
  • Simple and robust<\/li>
  • Lower cost<\/li>
  • Best where flow is relatively stable<\/li>
  • Regulator is near process<\/li> <\/ul> <\/td>
  • Higher Accuracy<\/li>
  • Higher Capacity<\/li>
  • Better where flows are varying widely<\/li>
  • Remote Sensing Capability<\/li> <\/ul> <\/td> <\/tr>
\u00a0Manual Controller Approach<\/strong><\/td> \"schematic:<\/td> \"schematic<\/td> <\/tr>
Electronic Controller Approach<\/strong><\/td> \"schematic:<\/td> \"schematic<\/td> <\/tr> <\/tbody> <\/table><\/div> <\/p>

Customers can use the standard vacuum pilot regulator, SVP1 and SVP2, or request an upgrade to the RSV remote sense pilot regulator or the QPV1 or EPR-30 electronic pilot regulator. The table below outlined the options and types of pilot regulators.<\/p>

\u200bVacuum Pilot Regulators<\/h2>
<\/th> SVP1<\/th> SVP2<\/th> RSV<\/th> QPV<\/th> EPR 30Hg<\/th> <\/tr> <\/thead>
\"Drawing<\/td> \"GSD3<\/td> \"BD12<\/td> \"image<\/a> <\/td> \"photo<\/a> <\/td> \"EPR-30<\/a> <\/td> <\/tr>
Control Type<\/strong><\/td> Open Loop Manual Control<\/td> Open Loop Manual Control<\/td> Closed Loop Manual Control<\/td> Open or Closed Loop Electronic Control<\/td> Open or Closed Loop Electronic Control<\/td> <\/tr>
EVR Port Sizes<\/strong><\/td> 1\/4″ – 1″<\/td> 1 1\/2″ – 4″<\/td> All Sizes<\/td> All Sizes<\/td> All Sizes<\/td> <\/tr>
DIM C (see dwg above)*<\/strong><\/td> 3 1\/4″<\/td> 3 3\/4″<\/td> 5 1\/4″<\/td> 3 3\/4″<\/td> 4″<\/td> <\/tr> <\/tbody> <\/table><\/div>

*C Dimensions are approximate<\/p>

Electronic Vacuum Pilot Regulator Details<\/h4>

For precise electronic control, using an Equilibar QPV<\/a> or EPR 30Hg<\/a> electronic vacuum pilot regulator is an excellent option. They can be mounted near the central process control system for easy process integration or mounted directly to the EVR. Both are available with analog signals of 4-20 mA and 0-10 VDC.<\/p>

It is easy to upgrade from a manual to an electronic vacuum pilot regulator. Watch our video\u00a0at right for a demonstration of installing a QPV1 as a pilot regulator for an EVR.<\/p>

These electronic vacuum regulators may be combined with any Equilibar EVR product in processes where computer control is desired.<\/p> <\/div><\/p>