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Potterton Injector 7.2mm Dungs Valve 666718

Potterton

Potterton Injector 7.2mm Dungs Valve 666718

Potterton 7.2 mm natural gas injector for Commercial Paramount boilers, part number 666718.

Manufacturer part no.
666718
Showing prices

£28.86

£24.05 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

This is the Potterton injector, 7.2 mm diameter, listed as INJECTOR - 7.2MM (DUNGS VALVE) under part number 666718. It is a natural gas (NGAS) injector rated for a 60 kW input and is used in the gas train of Potterton Commercial appliances equipped with a Dungs valve assembly. Its function is to meter and direct the gas flow into the burner to produce the correct flame at the pilot or main burner.

Signs this part needs replacing

  • Weak, undersized or unstable pilot or burner flame
  • Flame that lifts, flickers excessively or burns yellow rather than a steady blue
  • Repeated ignition lockouts or failure to establish flame
  • Sooting or discolouration around the injector or burner head
  • Visible blockage, debris or damage to the injector orifice

Before you order

  • Confirm the appliance model and input rating against the fit list above
  • Confirm the existing injector diameter is 7.2 mm and is marked for natural gas
  • Check the injector orifice is clean and unobstructed before condemning the part
  • Verify the valve assembly the injector sits in is a Dungs type, as stated for this part

Not sure which part?

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