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Altecnic Stainless Steel Expansion Vessel SSV5C

Altecnic

Altecnic Stainless Steel Expansion Vessel SSV5C

A 5 litre stainless steel expansion vessel from Altecnic for use in sealed heating systems.

Manufacturer part no.
SSV5C
Showing prices

£397.76

£331.47 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 Altecnic 5 litre Stainless Steel Expansion Vessel is a sealed-system component that absorbs the expansion of heated water within a heating circuit. It is manufactured by Altecnic and forms part of the Altecnic expansion vessel range. Its stainless steel construction houses the diaphragm and air charge that maintain system pressure as water volume changes.

Signs this part needs replacing

  • System pressure rises sharply when the heating is running and falls again once it cools.
  • Water is discharged from the pressure relief valve during normal operation.
  • The vessel no longer holds its air charge, or water is present at the air valve.
  • Pressure is repeatedly lost and the system needs frequent topping up.
  • The vessel is visibly corroded, dented or leaking at the body or connections.

Before you order

  • Confirm the capacity of the vessel being replaced matches 5 litres.
  • Check the vessel's markings and part number to confirm it is the correct unit for the installation.
  • Verify there is enough space and suitable support at the mounting position.
  • Check the system pressure and relief valve arrangement before fitting.

Not sure which part?

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