Potterton
Potterton Flange Sight Glass 5142366
Flange-mounted sight glass, Potterton part 5142366, for Potterton Commercial Sirius 2 and Sirius 3 FS series boilers.
At a glance
- Part type: sight glass with flange
£2.40
£2.00 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 FLANGE - SIGHT GLASS is a Potterton sight glass assembly supplied as part number 5142366. It mounts to the boiler casing to allow visual inspection of the flame or combustion chamber. It is listed for Potterton Commercial appliances in the Sirius 2 and Sirius 3 FS ranges.
Signs this part needs replacing
- The sight glass is cracked, chipped or otherwise damaged
- The viewing pane is heavily sooted, stained or obscured and cannot be cleaned back to clarity
- Moisture or condensate is trapped behind the glass
- The flange or its mounting face shows corrosion, distortion or signs of leakage
- Combustion viewing is impaired, making flame checks difficult
Before you order
- Confirm the appliance model against the data badge and check it appears in the fit list above
- Verify the part number 5142366 matches the number on the existing component or in the appliance literature
- Inspect the mounting face and surrounding casing for damage that may also need attention
- Check any sealing components associated with the sight glass separately, as they are not listed in this product data
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS110 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS50 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS70 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 2 FS90 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS110 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS50 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS70 | — | — | — | |
| POTTERTON COMMERCIAL SIRIUS 3 FS90 | — | — | — |
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.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.