
Potterton
Potterton Mixer C/W Small By-Pass Valve 30mm 5142381
Mixer with a 30mm small by-pass valve for Potterton Commercial Sirius 2 and Sirius 3 boilers.
£110.40
£92.00 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 mixer with small by-pass valve is a 30mm assembly used in the heating circuit of Potterton Commercial boilers. It combines a mixing body with a small by-pass valve to control flow through the appliance. It is listed for the Sirius 2 and Sirius 3 ranges.
Signs this part needs replacing
- Poor or uneven flow through the heating circuit
- The boiler fails to reach or hold its set temperature
- Boiler short-cycling or operating noisily
- Water weeping from the valve body or its connections
Before you order
- Confirm the appliance model against the fits list above
- Check the existing valve is 30mm before ordering
- Confirm the part number 5142381 matches the existing component
- Commercial boiler work should be carried out by a competent heating engineer
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS50 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS70 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 WH50 (FROM APRIL 2016) | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 WH60 (FROM APRIL 2016) | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 WH70 (FROM APRIL 2016) | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS70 | — | — | — |
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 technical questions yet for this part.
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