Peristaltic pumps - Features and Benefits

Peristaltic pumps provide excellent problem solving pumping solutions especially when the product being pumped is particularly abrasive, corrosive or viscous. Their lack of valves, seals and glands makes them inexpensive to maintain the only maintenance item is the hose or tube. Peristaltic pumps also have a gentle pumping action, ideal for shear sensitive polymers and fragile cell cultures. Lastly, the only part of the pump in contact with the fluid being pumped is the interior of the tube or hose, making it easy to sterilise and clean the inside surfaces of the pump.

Peristaltic pumps have no seals avoiding issues such as leaks of corrosive chemicals and ongoing maintenance.

The only replacement part is the hose or tube a relatively low cost item that can be easily changed in a short time.

Peristaltic pumps do not require pumped fluid to be continually present pumps can run dry, without costly downtime or repairs. The recovery of the hose or tube creates a powerful self-priming action and allows the pumps to move liquids containing entrapped air or that can offgas.

Peristaltic pumps have a gentle, low shear pumping action, ideal for shear sensitive products including flocculants and broths

The powerful suction provided by the recovery of a re-enforced hose gives hose pumps suction lift capabilities up to 9.5m of water.

Hose life is not related to a product’s abrasive qualities. The hose only fails due to fatigue or chemical action.

Verderflex hose pumps can pump slurries containing up to 80% inorganic solids or 15% organic sludge.

Peristaltic pumps are reversible and can be used to empty lines or clear blockages

The pumps have no internal backflow giving accurate dosing without slip

The pumps are accurate in dosing; they have a repeatability of ±1% and metering capabilities of ±5%.