Ariston
Ariston Expansion Vessel 60001649
Ariston 60001649 is a 25-litre expansion vessel for Classico STD HE and STI HE 500 litre cylinders.
At a glance
- Also known as 8901329
£129.02
£107.52 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 Ariston 60001649 is a 25-litre expansion vessel supplied for Classico STD HE and STI HE 500 litre unvented cylinders. It accepts the expansion of water as it is heated within the cylinder, helping to keep system pressure within its working range. It is a serviceable component of the cylinder assembly.
Signs this part needs replacing
- Water discharging from the air valve or charging valve on the vessel
- System pressure dropping with no visible leak elsewhere on the cylinder or pipework
- Vessel feels waterlogged — a dull thud when tapped rather than a hollow ring
- Pressure rising sharply during heating cycles or fluctuating at the gauge
- Corrosion, blistering or water staining on the vessel body
Before you order
- Confirm your cylinder model and edition matches one of the fitments listed above
- Check the capacity marked on the existing vessel is 25 litres
- Check the system pressure and the vessel charge pressure before removing the old vessel
Compliance
| Alternative numbers | 8901329 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ARISTON CLASSICO - STD 500 HE EDITION 4 (NOV 2010) | — | — | — | |
| ARISTON CLASSICO - STI 500 HE EDITION 4 (NOV 2010) | — | — | — | |
| ARISTON Classico STD HE 500 Litre | — | — | — | |
| ARISTON Classico STI HE 500 Litre | — | — | — |
Documents & drawings
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