Delavan 1.25-70-A Oil Burner Nozzle 1.25 Gph 70 Degree

Product Description

The DELAVAN 1.25-70-A is a hollow cone oil burner nozzle rated at 1.25 gallons per hour (GPH) with a 70-degree spray angle and a standard operating pressure of 100 psi. The Type A hollow cone design concentrates droplet distribution along the outside of the spray cone, which promotes reliable ignition and low-noise combustion. This nozzle is identified by a red vial for quick field identification. It is installed by HVAC and oil burner service technicians during routine maintenance, nozzle replacement, or combustion tune-up procedures on residential and light commercial oil-fired heating equipment.

The 1.25-70-A is suited for oil burner applications requiring a hollow cone air pattern and fuel throughputs up to 2.00 GPH. The 70-degree spray angle makes it appropriate for burner head geometries that call for a moderate spread pattern. It is a direct-fit nozzle for service calls where the existing nozzle matches the 1.25 GPH, 70-degree, Type A hollow cone specification. Annual nozzle replacement is standard practice during oil burner tune-ups to maintain combustion efficiency and minimize soot buildup.

Key Features

• 1.25 GPH flow rate at 100 psi operating pressure
• 70-degree hollow cone spray angle for compatible burner head geometries
• Type A hollow cone pattern concentrates droplets at the outer edge of the cone for stable ignition
• Supports throughputs up to 2.00 GPH within the hollow cone A-nozzle family
• Red vial color coding for fast field identification during service
• Low-noise combustion characteristics due to controlled droplet distribution

Compatibility

Designed for oil burners that require a hollow cone air pattern and a Type A nozzle with a 1.25 GPH rating at 70 degrees. Consult the burner manufacturer specifications to confirm nozzle type, flow rate, and spray angle before installation.

Installation Notes

Oil burner nozzles are replaced by licensed HVAC technicians or oil burner service professionals as part of an annual combustion tune-up. Always shut down the burner and allow the combustion chamber to cool before accessing the nozzle assembly. Use a proper nozzle wrench to avoid damaging the nozzle adapter or electrodes. Verify burner pump pressure with a gauge before startup to confirm operation at the rated 100 psi.

Technical Specifications

• Flow Rate: 1.25 GPH
• Spray Angle: 70 degrees
• Operating Pressure: 100 psi
• Spray Pattern: Hollow Cone
• Nozzle Type: Type A
• Vial Color: Red
• Maximum Throughput: 2.00 GPH
• Application: Oil Burner

Standard Information

• Brand: DELAVAN
• Manufacturer Part Number: 1.25-70-A