EOGB Delevan 1.65 x 45 B Nozzle

The 1.65 x 45 B Nozzle is an oil burner nozzle manufactured by EOGB under the Delevan range. It meters and atomises fuel oil at the burner head, and the 1.65 flow rating, 45 degree spray angle and B spray pattern identify its place in the firing range. It is used on EOGB Delevan oil-fired boiler applications.

• The burner flame becomes ragged, unstable or difficult to set up at the correct combustion readings.
• Soot deposits build up on the boiler baffles, heat exchanger or combustion chamber.
• Smoke or a persistent smell of oil appears at the burner or flue.
• The nozzle body, face or filter screen is visibly blocked, damaged or worn.
• Combustion analyser readings drift outside the expected range and cannot be corrected by adjustment alone.

• Confirm the required nozzle size, spray angle and spray pattern against the burner manufacturer's data for the appliance.
• Check the burner make and model so the nozzle matches the intended firing rate and combustion head.
• Inspect the nozzle seat, holder and filter for damage before fitting a new nozzle.
• Ensure the oil supply pressure and pump settings are correct, as these affect atomisation alongside the nozzle rating.