Choosing the Right

Two Stage vs. Single Stage Liquid Ring Pump

Efficiency

Single Stage

Provides robust and efficient operation with a minimal sliding friction design.

Two Stage

Offers better efficiency at higher vacuum levels, with the ability to condense process vapors and recover or dispose them off.

Vacuum Capacity

Single Stage

Suitable for moderate vacuum applications, typically achieving standard vacuum levels.

Two Stage

Can attain vacuum levels down to 35 mm Hg A, providing almost 35% lower absolute pressure compared to a single stage pump.

Application Range

Single Stage

Effective for general vacuum applications across various industries.

Two Stage

Preferred for handling solvents at higher vacuum levels and demanding processes.

Application Range

Single Stage

Performs well in a wide range of environments with minimal maintenance.

Two Stage

More efficient in handling demanding applications, such as high vapor loads, with better performance in challenging conditions.