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EOGB 8.50 x 80B Delavan Nozzle

EOGB

EOGB 8.50 x 80B Delavan Nozzle

Delavan-type oil burner nozzle rated 8.50 with an 80° B spray pattern, intended for EOGB Delevan oil boilers.

Manufacturer part no.
D04-0850-80-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 8.50 x 80B Delavan nozzle is an oil burner nozzle supplied under the EOGB brand for the EOGB Delevan boiler range. It meters and atomises the oil supply into the combustion chamber, and its flow rating, spray angle and spray pattern govern how the fuel is delivered to the flame.

Signs this part needs replacing

  • Smoke, sooting or a visibly dirty flame at the burner
  • Rising combustion CO readings or repeated combustion faults at service
  • An uneven, dribbling or distorted spray pattern when the nozzle is test-fired
  • Poor or unstable ignition, flame lift-off or flame failure on start-up
  • The nozzle has been in service for a full service interval or longer

Before you order

  • Confirm the existing nozzle marking reads 8.50 x 80B, as the flow rating, spray angle and pattern must match
  • Check the appliance is an EOGB Delevan unit before ordering
  • Verify the nozzle body and thread condition in the burner, as a damaged seat can leak even with a new nozzle
  • Have the burner combustion settings checked and reset after fitting

Not sure which part?

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