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Pressure Vessels

Pressure vessels are also commonly known as expansion vessels or hydraulic accumulators.

The pressure vessel takes in excess liquid when the system reaches a set pressure, and will discharge this when the system falls below the set pressure.   This helps maintain a constant pressure in your system, removing fluctuations.

Typically they are used to protect heating and hot water systems and boosters sets by cushioning shocks and over expansion or excessive pressure.

  • Protects systems, pumps and pipework
  • Ensures correct and smooth running of systems
  • Regular servicing and maintenance required

Vessels used on Booster Sets

Pressure vessels are used on a booster set to protect the set from stopping and starting regularly, and to cushion shock waves when the demand for water stops or is closed off suddenly, for eg: a tap or valve is closed.

The size of the pressure vessel is linked to the system size.

If you are experiencing mechanical seal failure, consistent fluctuation in water pressure and pumps stopping and starting regularly, we recommend your pressure vessels are checked.

Vessels used on Heating, Hot water & Chilled water systems

Pressure vessels are used in these applications to take up the expansion and contraction of the system volume caused by temperature change.

As the system heats up, the system expands and the pressure vessel absorbs the excess water, as the system cools down and contracts, the pressure vessel discharges to maintain the systems set pressure. If you are experiencing constant fluctuation in system pressure, your pressurisation unit or fill and spill unit is running regularly or pressure relief valve is activating we recommend your pressure vessels are checked.

Ranges available

  • Std Range:  2lt – 2800 lt
  • Std Range:  0 – 25 Bar
  • WRAS Approved
  • Flow through
  • Temperatures:  up to 120C
  • Vertical & Horizontal

Our Pressure Vessels Brands

Let’s Talk Pressure, we understand that every facility has unique demands. speak with a system expert today and get a recommendation built around your environment.

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