
SPECIAL OFFERS
Onyx 50L Blue Potable Vessel 1/2 Bar with Feet ONYX50LPOT
Onyx 50 litre blue potable expansion vessel rated at 1/2 bar, supplied with feet for floor standing installation.
At a glance
£86.88
£72.40 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 Onyx 50L blue potable vessel is a diaphragm expansion vessel for potable water systems, rated at 1/2 bar. It absorbs expansion and helps hold stable pressure on potable water installations. The vessel is supplied with feet for floor standing mounting.
Signs this part needs replacing
- System pressure rising or fluctuating beyond normal range
- Water discharging from the vessel air valve when the cap is depressed
- Corrosion, pitting or damp patches on the vessel shell or connections
- Vessel feels heavy or sounds waterlogged when tapped
- Pressure relief valve discharging more often than usual
Before you order
- Confirm the capacity and pressure rating match the vessel being replaced
- Check the system connection size and position against the new vessel
- Check available floor space and that the feet suit the installation
- Confirm the vessel is suitable for potable water use
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SPECIAL OFFERS Pressure Vessels & Accessories | — | — | — |
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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