70A Red Hollow Cone Burner Nozzle 1.50 GPH – OEM Replacement Part
Part Number: 1329
Category: Pressure Washer Parts → Burner Components → Burner Nozzles
Type: Delavan 70A Hollow Cone Oil Burner Nozzle
The Delavan 70A Red Hollow Cone Burner Nozzle 1.50 GPH is a premium oil burner nozzle engineered for dependable ignition, precise fuel atomization, and efficient combustion performance in hot water pressure washers, oil-fired heating systems, boilers, and industrial burner equipment. Featuring a 70-degree hollow cone spray pattern and 1.50 gallon per hour (GPH) flow rate, this nozzle is specifically designed for burner systems utilizing hollow cone air patterns.
Key Features & Benefits
- Genuine Delavan OEM burner nozzle
- 1.50 GPH fuel flow rate
- 70-degree spray angle
- Type A hollow cone spray pattern
- Excellent ignition performance
- Efficient fuel atomization
- Low-noise combustion operation
- Stable flame characteristics
- Precision-machined internal components
- Integrated sintered filter for contamination protection
- Durable corrosion-resistant construction
- Individually tested for spray consistency
- ISO 9001 certified manufacturing
Technical Specifications
Part Number: 1329
Manufacturer: Delavan
Series: Type A Hollow Cone
Size: 70A 1.50
Flow Rate: 1.50 GPH
Spray Angle: 70°
Spray Pattern: Hollow Cone
Color Code: Red
Thread Size: 9/16"-24
Fuel Type: Fuel Oil
OEM Replacement: Yes
Certification: ISO 9001 Certified
Type A Hollow Cone Spray Pattern Advantages
The Delavan Type A hollow cone design provides:
- Fuel concentration around the outer edge of the spray cone
- Excellent fuel-air mixing characteristics
- Fast and reliable ignition
- Smooth burner startup
- Stable flame development
- Reduced combustion noise
- Efficient heat transfer
- Consistent burner performance
This spray pattern is commonly specified for burner systems designed to operate with hollow cone fuel distribution.
Advanced Design Features
- Precision-machined spray components
- Optimized spray uniformity
- Reduced distributor size for improved reliability
- Shorter tangential slots to help prevent plugging
- Aerodynamic nozzle body configuration
- Rolled threads to eliminate chips and burrs
- Sintered filter sized for maximum protection
- Factory tested and cleaned before shipment
Typical Applications
- Hot water pressure washer burners
- Oil-fired heating systems
- Commercial burner assemblies
- Industrial combustion equipment
- Boilers and furnaces
- Agricultural heating equipment
- Mobile wash units
- Asphalt maintenance equipment
- Burner service and maintenance applications
Performance Benefits
- Reliable burner ignition
- Consistent combustion quality
- Efficient fuel atomization
- Stable flame formation
- Reduced combustion noise
- Enhanced burner efficiency
- Uniform heat output
- Long operational service life
Signs a Burner Nozzle Should Be Replaced
Replace the nozzle if you notice:
- Delayed ignition or hard starts
- Excessive smoke production
- Poor flame quality
- Reduced heating performance
- Increased fuel consumption
- Carbon buildup
- Burner instability
- Restricted fuel flow
Installation Notes
- Disconnect power and fuel supply before servicing.
- Remove the existing nozzle carefully.
- Inspect fuel filters and fuel lines for contamination.
- Install the replacement nozzle according to manufacturer recommendations.
- Verify the correct flow rate, spray angle, and spray pattern.
- Test burner operation after installation.
- Adjust combustion settings if required.
Important: Always use the nozzle size, spray angle, and spray pattern specified by the burner manufacturer to maintain safe operation, efficient combustion, and proper burner performance.
Maintenance Recommendations
- Replace burner nozzles during routine maintenance intervals.
- Keep fuel systems clean and free of water contamination.
- Inspect fuel filters regularly.
- Monitor flame quality and combustion efficiency.
- Verify fuel pressure settings during service.
- Replace worn or contaminated nozzles promptly.
