Altecnic Reflex Potable Water Vessel 12 Litre PV12D

The Reflex potable water vessel is a 12 litre expansion vessel manufactured by Altecnic, supplied with a 22mm connection. It is designed for potable water systems within the Altecnic expansion vessel range, where it absorbs the expansion of heated water and limits pressure rise in the system. The internal membrane separates the water from the air charge, allowing the vessel to buffer changes in system volume as temperature varies.

• The expansion relief valve discharges water during heat-up cycles
• System pressure rises sharply when the cylinder or system heats and falls again when it cools
• The vessel feels heavy or full of water when tapped, indicating a failed membrane
• Frequent topping up of system pressure is required
• Visible corrosion or weeping at the vessel connection

• Confirm the required capacity matches the 12 litre vessel being replaced
• Check the connection size is 22mm and that it matches the system pipework
• Verify the vessel is suitable for potable water use and not a heating-only vessel
• Check available space and mounting position, as the replacement must fit the existing installation