Potterton
Potterton Flow Flange 4 To 9 Section 5140637
Potterton Commercial flow flange, part 5140637, for NXR3I sectional boilers from 4 to 9 sections.
£146.40
£122.00 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 Commercial flow flange, part number 5140637, is a flanged connection fitting used on the flow side of NXR3I sectional commercial boilers. It forms the joint between the boiler section assembly and the flow pipework, sealing and securing the outlet connection. The same flange serves the full range of section counts covered by the NXR3I family.
Signs this part needs replacing
- Water weeping or tracking from the flow connection joint
- Visible corrosion, pitting or scaling on the flange face
- Staining or mineral deposits around the flange indicating a long-standing seep
- Difficulty achieving a seal at the flow outlet despite correct gasket and torque
- Distortion or cracking of the flange body
Before you order
- Confirm the boiler model and section count against the fits list above
- Check the flange face and mating surface for damage before refitting
- Verify the part number 5140637 against the existing component
- Confirm whether the gasket and fixings are required separately
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| POTTERTON COMMERCIAL NXR3I 4 SECTION | — | — | — | |
| POTTERTON COMMERCIAL NXR3I 5 SECTION | — | — | — | |
| POTTERTON COMMERCIAL NXR3I 6 SECTION | — | — | — | |
| POTTERTON COMMERCIAL NXR3I 7 SECTION | — | — | — | |
| POTTERTON COMMERCIAL NXR3I 8 SECTION | — | — | — | |
| POTTERTON COMMERCIAL NXR3I 9 SECTION | — | — | — | |
| POTTERTON COMMERCIAL POTTERTON COMMERCIAL SPARES | — | — | — |
Documents & drawings
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