Different Types of Wastewater Pumps

Depending on the application, there are many commonly used types of wastewater pumps including:

Centrifugal pumps — They use centrifugal force that creates enough velocity to displace the water through the system.

Positive displacement pumps — These types of pumps use impellers, rollers, and gears as they displace fluid. They’re ideal pumping solutions for liquids and slurries that contain a lot of solid particles.

High-pressure pumps — These pumps use an axial piston principle to move liquid and can be fixed displacement or variable delivery.

Other Pumps — There are many other types of pumps that are used in wastewater treatment facilities, such as:

 

• Progressive cavity pumps
• Mixed flow pumps
• Trash pumps
• Lift stations

 

Rotary Vane Pumps

Rotary vane pumps use a positive-displacement pumping principle. The rotor is eccentrically mounted in a cylindrical stator or housing.

The blades are inside the rotor and use centrifugal force to move in and out while following the surface of the housing. Our oil-less rotary vane pumps provide cool, quiet operation coupled with long vane life. In addition to the 100% oil-less operation, they feature:

 

• Direct drive
• Minimal maintenance
• Continuous duty rated
• Long vane life
• Pressure regulator included
• Inlet filter standard
• K-model pumps include aftercoolers

 

Regen Pumps/Pressure Pumps

Our regenerative blowers use non-positive displacement to move air. Some air is allowed to move forward by passing over one blade and then onto another. This process differs from positive displacement – which traps air and then forces it to move onward. Regen pumps have a relatively simple design that uses only the enclosed space and air that flows into and out of the blower. An engine or motor provides power to the blades and allows them to rotate. Conversely, pressure pumps use low-pressure, oil-less, dry compressors to move air.