Checking hours…Mon–Fri 7:30am–5pm · Sat 9am–12pm01302 279234Trade account
EOGB Delavan Nozzle 8.50 X 45 B D04-0850-45-B

EOGB

EOGB Delavan Nozzle 8.50 X 45 B D04-0850-45-B

Delavan oil burner nozzle with an 8.50 rating, 45 degree spray angle and B pattern suffix, supplied by EOGB.

Manufacturer part no.
D04-0850-45-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

This is an 8.50 X 45 B Delavan nozzle manufactured by EOGB, part number D04-0850-45-B. It is a pressure-jet atomising nozzle used in oil-fired boiler and burner assemblies, where it meters and atomises the fuel supply to produce a stable, correctly shaped flame in the combustion chamber.

Signs this part needs replacing

  • Burner flame becomes unstable, uneven or difficult to establish
  • Visible smoke at the flue or soot building up on the heat exchanger
  • Combustion readings drifting outside the tolerance set at commissioning
  • Restricted or blocked nozzle giving poor atomisation and erratic firing
  • Increased fuel consumption without a change in heat demand

Before you order

  • Confirm the nozzle stamping matches 8.50, 45 and B before removing the existing nozzle
  • Check the burner data plate and commissioning record for the required nozzle rating and spray pattern
  • Check the nozzle holder and fuel supply for contamination before fitting a new nozzle

Not sure which part?

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