Onyx 500L Blue Potable Accumulator Vessel 1 1/4 4 Bar with Feet ONYX500LPOT

The Onyx 500L Blue Potable Accumulator Vessel 1 1/4 4Bar w FEET is a 500 litre potable water accumulator vessel manufactured by Onyx. It stores water under pressure in domestic and light commercial potable water systems, smoothing flow and reducing pump cycling. The vessel has a 1 1/4" connection, a 4 bar pressure rating and is supplied with feet for floor standing installation.

• Pump short cycling, with frequent start and stop cycles during normal draw off
• Waterlogged vessel, indicated by little or no pressure response when the system is charged
• Water discharging from the expansion relief or pressure relief valve during heating or pump cycles
• Visible corrosion, blistering or staining on the vessel shell or at the connection
• Steady loss of pre-charge pressure at the vessel charging point

• Confirm the 1 1/4" connection matches the pipework and fittings on the existing installation
• Check that the 4 bar rating is compatible with the system pressure and pump cut-out setting
• Confirm there is sufficient floor space and height for a 500 litre vessel with feet, including access for connection
• Verify the part number ONYX500LPOT against the existing vessel before ordering