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Alpha 18mm Dia. Pipe Heating Flow 1.021880

Alpha

Alpha 18mm Dia. Pipe Heating Flow 1.021880

18mm diameter heating flow pipe for Alpha CD13R and CD18R LPG gas boilers.

At a glance

  • Also known as D18-PIPE-MODULE-HEATING-SYSTEM-FLOW, 1250335
Manufacturer part no.
1.021880
Showing prices

£41.17

£34.31 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 18mm dia. heating flow pipe is a pipe assembly component used in Alpha gas boilers. It forms part of the heating circuit pipework within the appliance, carrying water away from the heat exchanger on the flow side. It is supplied by Alpha under part number 1.021880.

Signs this part needs replacing

  • Visible corrosion, pitting or scaling on the pipe surface
  • Weeping or damp staining at pipe joints or connections
  • Discolouration or heat damage around the pipe run
  • Reduced or restricted flow through the heating circuit
  • Noise or vibration traced to the flow pipework

Before you order

  • Confirm your boiler model against the fitment list above
  • Check the pipe diameter and whether the flow or return pipe is required
  • Inspect the surrounding pipework and joints for related faults before ordering

Not sure which part?

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