Delavan 00065-70W1 Oil Burner Nozzles, 0.65 gph, 100 psi, 70 degrees, W, All Purpose

Delavan 65-70W1 Oil Burner Nozzle – 0.65 GPH, 70° Semi-Solid/Hollow Cone, Type W (All-Purpose)

The Delavan 65-70W1 Oil Burner Nozzle is a precision-engineered fuel atomization component designed for dependable and efficient performance in oil-fired heating systems. Featuring a 70° Type W (All-Purpose) spray pattern, this nozzle provides a balanced combination of solid and hollow cone characteristics, offering flexibility for a variety of burner designs and combustion chamber configurations. The bi-metal construction, with a brass body and stainless-steel metering assembly, ensures dimensional accuracy, consistent flow, and long-term durability under continuous service conditions.

Technical Specifications

• Manufacturer: Delavan
• Model Number: 65-70W1
• Product Type: Oil Burner Nozzle
• Flow Rate: 0.65 GPH (Gallons Per Hour at 100 PSI)
• Spray Angle: 70°
• Spray Pattern: Semi-Solid/Hollow Cone (Type W – All Purpose)
• Material – Body: Brass
• Material – Metering Components: Stainless Steel
• Construction: Bi-Metal Design (Brass Body / Stainless-Steel Metering Assembly)
• Operating Pressure: Standard 100 PSI (per burner manufacturer specifications)
• Atomization Characteristics: Balanced droplet distribution suitable for multiple chamber geometries
• Heat Transfer Properties: Brass body promotes rapid heat dissipation to prevent varnish or carbon buildup
• Fuel Compatibility: Compatible with No. 1 and No. 2 Fuel Oils and light distillate fuels
• Temperature Range: Rated for standard burner combustion operating temperatures
• Durability: Stainless steel metering components resist erosion and maintain flow accuracy over extended use
• Part Number: 1905510
• Application: Residential, commercial, and light industrial oil-fired furnaces, boilers, and burners
• Compliance: Meets OEM and industry standards for flow precision and atomization quality

Performance and Application

The Delavan 65-70W1 nozzle delivers consistent and efficient atomization for stable, controlled combustion. The 70° spray angle ensures proper fuel dispersion across various burner head designs, while the semi-solid pattern provides uniform flame formation with reliable ignition and combustion efficiency. The stainless-steel metering parts maintain dimensional precision, ensuring accurate fuel flow and droplet size over extended service intervals. The brass body enhances heat conduction, minimizing residue buildup and preserving long-term performance consistency. Engineered for versatility, the Type W design supports both narrow and wide combustion chamber configurations, making it suitable for professional-grade oil burner applications.

Summary

The Delavan 65-70W1 0.65 GPH 70° Type W Oil Burner Nozzle offers contractors a durable and precise atomization solution for a range of oil-fired heating systems. Its bi-metal construction, balanced semi-solid spray pattern, and high machining accuracy ensure efficient fuel delivery, reliable combustion, and extended service life in both residential and commercial heating installations.