Potterton
Potterton Secondary Expansion Vessel 12 Litre 5106938
12 litre secondary expansion vessel for Potterton Powermax HE85, HE115 and HE150 appliances.
At a glance
- Also known as 1151336, N8029
£193.48
£161.23 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 Potterton 5106938 is a 12 litre secondary expansion vessel used in Powermax HE appliances. It absorbs the expansion of water in the secondary circuit as the stored water is heated, limiting the pressure rise across the system. It is a serviceable component within the Powermax HE assembly.
Signs this part needs replacing
- Water discharging from the vessel air valve when it is depressed
- System pressure rising sharply as the appliance heats up
- Pressure relief valve discharging during normal operation
- Frequent pressure loss or repeated topping up
- Visible corrosion or water staining on the vessel body
Before you order
- Confirm the appliance model and GC number against the fitment list
- Check the existing vessel is the 12 litre secondary type
- Isolate the appliance, drain down and depressurise before removal
- Check access to the vessel and its connections before ordering
Compliance
| GC number | E85-699 |
|---|---|
| Barcode / EAN | 5039177646433 |
| Alternative numbers | 1151336, N8029 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON POWERMAX HE115 | 41-389-16 | 41-389-16 | — | — |
| POTTERTON POWERMAX HE150 | 41-389-17 | 41-389-17 | — | — |
| POTTERTON POWERMAX HE85 | 41-389-15 | 41-389-15 | — | — |
Documents & drawings
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