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EOGB 5.50 X 45B Delavan Nozzle D04-0550-45-B

EOGB

EOGB 5.50 X 45B Delavan Nozzle D04-0550-45-B

Oil burner nozzle in the EOGB Delavan range, rated 5.50 X 45B, for oil-fired boiler applications.

Manufacturer part no.
D04-0550-45-B
Showing prices

£32.99

£27.49 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 5.50 X 45B Delavan Nozzle is an oil burner nozzle supplied under the EOGB brand from the Delavan range. It fits oil-fired boiler appliances and is the component that atomises fuel oil into a fine spray for combustion at the burner head. The nozzle is identified by its 5.50 X 45B rating, which must match the specification of the appliance it is fitted to.

Signs this part needs replacing

  • Sooty deposits or black smoke at the appliance, indicating poor atomisation
  • Unstable or pulsating flame, or repeated lockouts on ignition
  • Rising fuel consumption without a change in demand
  • Carbon build-up on the burner head or nozzle face
  • Combustion readings drifting outside the appliance manufacturer's limits

Before you order

  • Read the markings on the existing nozzle and confirm they match the 5.50 X 45B rating and pattern
  • Check the boiler or burner manufacturer's specification for the nozzle required by that appliance
  • Confirm the burner accepts a Delavan-pattern nozzle of this rating before fitting
  • Have the combustion analyser to hand so the appliance can be set up and checked after replacement

Not sure which part?

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