CDR Pumps mini logo depicting a pump

Introducing The Hydropack

Recently, a customer needed some help with a pump installation problem.  They had bought a liquid ring vacuum pump but commissioned their own skid unit.  Their hardware was experiencing premature corrosion and the service liquid supply was irregular causing inconsistent vacuum capability which in turn made the process time longer. A…

Recently, a customer needed some help with a pump installation problem.  They had bought a liquid ring vacuum pump but commissioned their own skid unit.  Their hardware was experiencing premature corrosion and the service liquid supply was irregular causing inconsistent vacuum capability which in turn made the process time longer.

A liquid ring vacuum pump needs a constant feed of liquid to make the ‘liquid ring’, pulling down to low vacuum means that the service liquid needs to be at a controlled temperature of 15’C to draw a maximum vacuum and so the need for heat exchangers is very often part the installation.

This is where the HydroPack system comes into play.

The system has been designed specifically to work with liquid ring vacuum pumps mounted on a skid unit.  The skid functions as an air-water separator, maintaining operating temperatures that are extremely low and constant thanks to an externally powered heat exchanger built into it. The level of service liquid on the centre line of the pump guarantees safe start-up and smooth operation, even under low vacuum conditions.

  • Compact
  • Total or partial recirculation
  • Efficient at both the high-end and low-end vacuum range
  • Thermal efficiency
  • Vertical gas discharge port
  • Extremely reliable
  • Access points to make maintenance easy
  • Can be manufactured in a variety of materials
  • Can also be manufactured with for a single pump or for two pumps on one unit
by CDR Pumps An example of the Hydropack system with a liquid ring vacuum pump

The Hydropack System offers is a complete compact “plug and play” package which has an integrated vessel for partial liquid recovery, heat exchanger, separation chamber, and instrumentation to keep the system water at the correct temperature to enable the pump to deliver optimum performance and remove vapour from the air being extracted from the process.

The system is compatible with many pump size options, giving a maximum capacity of 800 m3/hr, with 30kw drives and vacuum levels down to 33 mBar, and can be modified with a variety of components to meet your application’s needs:

  • Level Switch
  • Ejector
  • Non-return Valve and Gauges
  • Recirculation/condenser pump
  • Post condenser
  • Cooling unit
  • Heat Exchanger

Common Applications for the HydroSys Liquid Ring Vacuum Skid:

  • Distillation
  • Solvent recovery
  • Water treatment
  • Filtration
  • Sterilisation
  • Gas Compression

CDR Pumps Shortlisted for Supplier to the Chemical Industry Award

We are delighted to announce that CDR Pumps has been shortlisted as a finalist for the Chemicals Northwest Supplier to the Chemical Industry Award 2026.

Being shortlisted is a fantastic recognition of the work our team does every day to support the UK chemical industry with innovative, reliable and safety-focused pumping solutions….

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Industrial plant emitting clean steam instead of carbon emissions, representing decarbonization through the use of fume scrubbers.

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Chemical pumps improve the performance of your fume scrubbers! 
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What You Need to Know
Moving thousands of litres of valuable spirits through various production stages each day, pumps are at the core of alcohol manufacturing and distilleries. A single pump failure can completely stop production, compromise product quality, and result in significant financial losses for UK distillery operations.
Choosing the right…

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