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Pressure Injection


Hydra-Cell high pressure pumps are ideal for 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 pressure injection 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 is a true positive-displacement pump. Flow rate is directly related to pump speed, and the chosen rate holds constant, independent of a low or high discharge pressure, making it very suited for pressure injection of liquids.

When pumping or injecting 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 high presure injection pump to handle liquids of any viscosity from 0.1 cps to 10,000 cps - with constant flow rate against varying discharge pressures, low or high.

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.


The Hydra-Cell Advantage

  • True positive displacement
  • Constant flow rate independent of pressure
  • No flow rate reduction when pumping thin liquids
  • Sustained high pressure pumping
  • Ability to hold pressure without bypassing flow
  • Low shear pumping action
  • No loss of flow rate due to seal wear, especially when pumping abrasive and corrosive liquids
  • Simple compact design makes on-site service uncomplicated and the same pump adaptable for many different duities