Altecnic Reflex Heating Expansion Vessel HV50C

The Reflex 50 litre Heating Expansion Vessel is a sealed-system expansion vessel manufactured by Altecnic. It forms part of the Reflex range of expansion vessels and is intended for heating installations, where it absorbs the volume change of the system water as it heats and cools. The vessel maintains system pressure and protects components from the pressure swings that occur during normal operation.

• System pressure rises sharply when the appliance heats up and falls again on cooling.
• Water discharges from the pressure relief valve during normal heating cycles.
• The vessel feels heavy or waterlogged when tapped, indicating the internal diaphragm has failed.
• Frequent topping up of system pressure is needed to keep the installation running.
• Visible corrosion or weeping at the vessel connection or body.

• Confirm the capacity required matches the system volume and the existing vessel being replaced.
• Check the available space and the mounting arrangement at the installation point.
• Verify the connection size and type on the existing vessel against the new unit before ordering.
• Confirm the vessel is suitable for a sealed heating system rather than a domestic hot water application.