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Potterton Flow Pipe 988643

Potterton

Potterton Flow Pipe 988643

Potterton commercial boiler flow pipe, part 988643, rated for 40 kW Paramount models.

Manufacturer part no.
988643
Showing prices

£177.78

£148.15 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Potterton 988643 is a flow pipe supplied by Potterton Commercial for use in its commercial gas boiler range. It forms part of the water circuit on the appliance, carrying heated water away from the heat exchanger. The part is listed for 40 kW versions of the Paramount family.

Signs this part needs replacing

  • Visible water loss or weeping at the pipe joints or along the pipe run
  • Corrosion, pitting or surface staining on the pipe wall
  • Kettling, gurgling or air noise from the boiler water circuit
  • Repeated pressure loss on the system that cannot be traced to another component
  • Pipe deformation or cracking after overheating or frost damage

Before you order

  • Confirm the appliance model and kW rating against the fit list above
  • Check the existing pipe and any appliance documentation for the part number 988643
  • Verify the pipe is the failed component before removing it from the boiler
  • Isolate the appliance and drain down as required before fitting

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.