Altecnic Reflex 500 Litre Potable Water Vessel PV500W

The Reflex 500 litre Potable Water Vessel is an expansion vessel manufactured by Altecnic. It forms part of the Reflex range of expansion vessels and provides 500 litres of vessel capacity for potable water systems. Its role is to absorb the expansion of water as it heats, limiting pressure rise within the installation.

• The vessel feels heavy or waterlogged when tapped, indicating the diaphragm has failed and the charge side has filled with water.
• System pressure rises rapidly on heat-up and falls again on cool-down, suggesting the vessel can no longer absorb expansion.
• The pressure relief valve discharges repeatedly during normal operation.
• Visible corrosion, pitting or leakage at the vessel shell, connection or diaphragm.
• The pre-charge pressure will not hold when checked and topped up.

• Confirm the existing vessel's capacity and that a 500 litre vessel matches the system requirement.
• Check that a potable water vessel is the correct type for the installation, as potable and heating vessels are not interchangeable.
• Verify there is sufficient space and access for a vessel of this size, including clearance for connection and any future service.
• Note the part number PV500W when cross-checking against the vessel currently installed.