Pressure Cells – Pressure Tanks – Accumulators

Pressure Tanks, Pressure Cells, or Accumulators, whatever you call them, are ideally suited for a wide range of general applications, including pump booster systems, thermal expansion, irrigation systems, and minimising water-hammer.

In domestic water systems that use an accumulator tank, the air pressure setting inside the tank should typically be set to approximately 66% (or two-thirds) of the system’s working water pressure — usually based on the pump’s maximum pressure capability.

For example, if the pump can deliver 45m of head (about 450kPa), the accumulator should be precharged to around 30m (or 300kPa) when the system is depressurised. This ensures the tank stores an optimal volume of water and helps maintain steady pressure while minimising pump cycling.

For more information, contact one of our friendly staff

Special Features

  • Single diaphragm design, 100% potable quality butyl
  • Virgin polypropylene liner, so no water touches plain steel
  • Appliance quality two-part polyurethane, epoxy primed paint finish, almond
  • Brass-stemmed air valve and o-ring-sealed valve cap
  • Pre-Charged air side 58 PSI / 4 Bar
  • Maximum temperature up to 90 °C
  • Standard maximum pressure 145 PSI / 10 Bar
  • 5-Year Replacement Warranty
  • Outlet = 1" / 25mm