Boosted Liquid Ring Vacuum Pumps

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In many process applications, liquid ring vacuum pumps (LRVP) are the preferred vacuum pumps for many applications due to their inherent high reliability, forgiving design, and low maintenance. The major draw back to LRVPs is the limited deep vacuum capability due to the sealant vapor pressure. However, most engineers are not aware that you can operate LRVPs beyond the 29 HgV limit shown on the LRVP curves.

• Wintek has designed / supplied systems with capacities to 10,000 ACFM.

• Pressures as low as 0.03 mm HgA with liquid ring vacuum pumps.

• Proper design is imperative for reliable operation.

• Wintek has developed proprietary computer sizing programs to perform these intensive calculations.

• Require all of your potential suppliers of this type of system for a performance/ temperature profile curve.

• Wintek has a proven track record -- we've been supplying these systems for 20 years.

If you are considering a Boosted Liquid Ring vacuum system, you should be aware that not everyone has the same level of expertise. The largest manufacturer's of liquidring vacuum pumps do not necessarily have the most experience in Boosted Liquid Ring Systems.

Questions to Ask:

What is the operating range for the booster?

What is the cut-in point for the Booster?

What is the highest pressure the booster can operate continuously?
The higher the pressure, the larger the roughing pump (liquidring pump), and the higher the cost.

  Two Booster/AirJet/LRVP Systems
Two Booster/AirJet/LRVP systems designed for PET high temperature polymerization at 0.4 torr.

Booster/Booster/LRVP System
Booster/Booster/LRVP system for batch reactor at a chemical manufacturer operating at 5 torr.

At what point is the Booster operating the hottest?

What temperature will the high temperature switch shut down the system?

What happens if my process changes and we have more solvents?

Ask for a capacity and temperature plot of the vacuum system.
Systems are designed to meet a specific operating pressure, however, just as important is the capacity of the system at other points on the curve.

  For additional information, Call: (973) 252-8200, Fax: (973) 252-8233, or Email Sales at