
Altecnic
Altecnic Stainless Steel Expansion Vessel SSV5C
A 5 litre stainless steel expansion vessel from Altecnic for use in sealed heating systems.
£397.76
£331.47 ex. VAT · VAT at 20%
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.
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALTECNIC Expansion Vessels | — | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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