Pressurisation Units

Pressurisation Units

Pumps UK LTD's pressurisation units are designed to replace water that has been lost through system leakage and to maintain the system design fill pressure in sealed heating and chilled water systems. Most modern boiler and air conditioning systems are sealed and require a device to maintain the system pressure and give warnings when the fill pressure is low or when the water has over expanded causing a high pressure.

All sealed heating systems have to have an interlock circuit so that the boilers are cut out if the unit is at fault. Incorrect calibration of the unit settings or pre charging of the expansion vessels will cause the system to malfunction. Pumps UK Ltd are able to size, supply and commission units to suit most applications.

If you are not sure what unit you require please contact the office or fill out our online quotation form.


  • Armstrong 3750 Units

  • PUK-Autopress

  • Lowara Presfix Units

  • Flamco Microfill Units


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  1. PCB 50
  2. PUK-Autopress 1LV pressurisation unit
  3. Flexfiller Mini
  4. PUK-Autopress 1LEV pressurisation unit
  5. Flexfiller Midi
  6. PUK-Autopress 1LC pressurisation unit.
  7. PUK-Autopress 1HC Pressurisation unit
  8. PUKPUK-Autopress 2LC Low Pressure Twin Pump Floor Mounted 2LC Floor Mounted Pressurisation unit.
  9. PUK-Autopress 2LEV pressurisation unit
  10. PUK-Autopress 2HC Pressurisation units.
  11. Lowara Presfix Beta 228 Dual System
  12. Lowara Presfix Beta 255 Dual System
  13. Lowara Presfix Beta 280 Dual System
  14. Armstrong 3750-2VM-S

14 Items

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