Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
Altecnic Reflex Heating Expansion Vessel HV25C

Altecnic

Altecnic Reflex Heating Expansion Vessel HV25C

Altecnic Reflex 25 litre heating expansion vessel for use in sealed heating systems.

Manufacturer part no.
HV25C
Showing prices

£102.34

£85.28 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Reflex 25 litre Heating Expansion Vessel is a sealed-system expansion vessel manufactured by Altecnic. It absorbs the volumetric expansion of water as the system heats up, limiting pressure rise within the heating circuit. It is listed for use with Altecnic expansion vessel applications.

Signs this part needs replacing

  • System pressure rises sharply as the boiler heats and falls again when it cools
  • Water discharges from the pressure relief valve during normal operation
  • The system needs frequent topping up to maintain pressure
  • Pressure gauge needle swings widely between cold and hot states
  • Water, rather than air, is released when the vessel charge point is checked

Before you order

  • Confirm the vessel capacity suits the system volume and the existing installation
  • Check the connection size and thread on the existing vessel against the replacement
  • Confirm the vessel charge pressure required for the system
  • Verify there is sufficient space to mount and connect the vessel

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.