
Altecnic
Altecnic Reflex 300 Litre Heating Expansion Vessel HV300W
Altecnic Reflex 300 litre heating expansion vessel for sealed heating systems, part number HV300W.
£2,211.89
£1,843.24 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 Reflex 300 litre Heating Expansion Vessel is manufactured by Altecnic and forms part of the Reflex range of expansion vessels. It is used on heating systems to absorb the increase in water volume as the system heats up, limiting the resulting rise in system pressure. It is a boiler-associated component suited to sealed heating installations.
Signs this part needs replacing
- Water discharging from the pressure relief valve during heating cycles
- System pressure rising sharply when hot or falling repeatedly when cold
- Water or corrosion present at the vessel connection
- Vessel feels heavy or waterlogged when tapped, indicating a lost air charge
- Frequent topping up of system pressure to maintain operation
Before you order
- Confirm the vessel volume required for the system, based on water content and operating temperature range
- Check the connection size and thread on the existing vessel against the new unit
- Verify the system operating pressure sits within the vessel's pre-charge and maximum working pressure limits
- Check there is sufficient space and suitable mounting for a vessel of this capacity
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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