Oil Burner Nozzle
Precision engineering for efficient combustion. The nozzle atomizes fuel oil into a fine mist, determining the flame shape, stability, and efficiency.
Overview
An Oil Burner Nozzle is a precision component designed to atomize fuel oil into micro-droplets (approx. 50-100 microns) to mix with air for combustion. It is not just a "hole" for oil to pass through; it contains complex internal swirls and filters to shape the spray.
⚠️ Nozzles are wear items. Even microscopic erosion of the orifice can significantly alter the flow rate and spray angle, leading to soot, smoke, and wasted fuel. They should typically be replaced annually.
Understanding Nozzle Specs
1. Flow Rate (GPH)
Gallons Per Hour at a standard pressure (usually 100 PSI). Increasing pump pressure increases the actual flow rate.
Example: A 1.00 GPH nozzle at 140 PSI delivers approx 1.18 GPH.
2. Spray Angle
The angle of the oil cone leaving the nozzle. Common angles: 30°, 45°, 60°, 80°.
• Narrow (30-45°): For long, narrow combustion chambers.
• Wide (70-90°): For short, round combustion chambers.
3. Spray Pattern
Determines the distribution of droplets within the cone.
Spray Patterns Explained
Solid Cone
Droplets are distributed evenly throughout the cone. Used for larger burners and where the air pattern is heavy in the center.
Hollow Cone
Droplets are concentrated on the outer edge of the cone. Used for smaller burners (< 1.0 GPH) to facilitate ignition and stability.
Semi-Solid
A universal pattern that bridges the gap between solid and hollow. Often used as a safe replacement when the original pattern is unknown.
Leading Manufacturers
- DanfossSeries H, S, B, OD
- DelavanType A, B, W (Standard)
- SteinenType Q, SS, H
- MonarchType R, NS, PLP
- FluidicsReturn flow nozzles
Related Components
Do Not Clean Nozzles!
Never try to clean a clogged nozzle with a needle or pin. The orifice is machined to extreme precision. Any scratch will ruin the spray pattern. Always replace, never clean.