There are three methods of extending the operating range for liquid ring vacuum pumps (LRVP). All are capable of handling upsets (liquid carry-over) without damage, and minimal effect on operation. Click here for Boosted Liquid Ring.
Steam Jet Hybrid • Combines a steam jet / condenser with a liquid ring vacuum pump.
• Utilizes steam as a motive fluid.
• Vacuum to 0.1 torr or less.
• High volumetric efficiency.
• Note: Requires steam, and generates condensate.
Hastelloy Jet Condenser and LRVP used at a Pharmaceutical company on a vacuum dryer
SS Air-jet used with 25 HP LRVP on a filter / dryer
Air-Jet / LRVP • Utilize atmospheric (or recycled) air as the motive fluid.
• No Steam or pressurized air required.
• Vacuum to 10 Torr (29.6 HgV) typical.
• Most common method to extend the range of the LRVP.
• Most practical for smaller capacity requirements.
• Note: increases required size of vacuum pump.
Booster LRVP • Combines a Rotary Lobe Blower with a LRVP.
• High efficiency design; uses energy of Air-jet / LRVP.
• Practical design for 50 Torr to .05 Torr.
• Practical capacities of 200 - 10,000 ACFM
• Note: good understanding of the process and design experience are required for proper design.
Booster / Booster LRVP used on reactors at a specialty chemical company
