Systems in which liquids must be injected at pressure - for example, metering or dosing into a process line, a vessel under test, a membrane filtration system or into the ground.

High pressure discharge is the obvious requirement for these applications. Hydra-Cell pumps can operate continuously at pressures from very low up to 70 bar or higher – some models up to 210 bar.

The Hydra-Cell has a true positive-displacement pumping action. Flow rate is directly related to pump speed, and the chosen rate holds constant, independent of discharge pressure.

When pumping low viscosity liquids, the flow rate of pumps using other technologies, for example screw pumps, lobe pumps, gear pumps and progressing cavity pumps, can fall off as the discharge pressure rises. This does not happen with the Hydra-Cell design, which enables the pump to handle liquids of any viscosity from 0.1 cps to 10,000 cps - with constant flow rate against varying discharge pressures.

These features are combined with high energy efficiency, low-shear pumping action for gentle handling, simple build, undemanding maintenance and easy electronic control.

See below for application examples from information supplied by customers.