Busch has three series of liquid ring vacuum pumps.

The LX Series is designed for continuous operation with an end pressure of 25 torr (29”Hg). The Busch Dolphin LX is single stage, compact, direct driven, and cost effective. Eight sizes are available from 18-268 ACFM pumping speed.

The LA Series is designed for continuous operation with an end pressure of 100 torr (26"Hg). This unit combines the benefits of high efficiency with a compact, rugged machine. Sixteen models are available with a pumping speed range of 35-3002 ACFM.

The LB Series is designed for continuous operation with an end pressure of 25 torr (29"Hg). The Busch Dolphin LB is a two-stage, heavy duty machine. Nineteen models are available with a pumping speed range of 38-2590 ACFM.

 Features:

• Compact
  
• Cost effective
  
• Single and two stage designs
  
• Oil-free
  
• Direct driven
  
• Low maintenance
  
• Once-through, Partial recovery and Total recovery systems are available
• Accessories available

Dolphin Operating Principle:

The impeller rotates in the cylinder partially filled with water or another liquid medium. The rotation forces the liquid to the outside of the cylinder to form a liquid ring. The entering vapors are trapped within the vane slots between the rotor shaft and the liquid ring where they are compressed and discharged to atmosphere.