Delavan 0135-45B1 Oil Burner Nozzle – 1.35 GPH, 45° B Solid Cone with Sintered Filter
The Delavan 0135-45B1 is a high-quality 1.35 GPH oil burner nozzle with a 45° B solid cone spray pattern and integrated sintered filter. Designed for precise fuel atomization, this nozzle ensures smooth ignition, stable flame, and efficient combustion in a variety of residential, commercial, and industrial heating applications.
Type B Solid Cone nozzles produce a spray that distributes fuel droplets evenly across the flame. At higher flow rates, the spray may become slightly hollow, making these nozzles ideal for larger burners, heavy air patterns, or longer flames.
✅ Key Features
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✅ Flow Rate: 1.35 GPH
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✅ Spray Angle: 45°
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✅ Spray Pattern: B Solid Cone – uniform droplet distribution
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✅ Integrated sintered filter prevents clogging for consistent performance
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✅ Ideal for larger burners or burners with heavy center air patterns
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✅ Promotes smooth ignition and stable flame for efficient combustion
📊 Specifications
| Parameter | Detail |
|---|
| Part Number |
0135-45B1 |
| Flow Rate |
1.35 GPH |
| Spray Angle |
45° |
| Spray Pattern |
B Solid Cone |
| Filter |
Sintered, built-in |
| Type |
Oil Burner Nozzle |
| Application |
Residential, Commercial, Industrial Burners |
| Notes |
Solid cone spray may become slightly hollow at higher flow rates (>8 GPH) |
⚠️ Common Symptoms Indicating Replacement
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Irregular or unstable flame
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Burner fails to ignite properly
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Soot buildup or smoky combustion
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Clogged nozzle filter or restricted fuel flow
❓ Frequently Asked Questions (FAQ)
Q: What does the “B” spray pattern mean?
A: “B” indicates a Solid Cone spray pattern, distributing fuel droplets evenly throughout the flame for smooth ignition.
Q: What is the purpose of the sintered filter?
A: The sintered filter prevents debris from entering the burner, maintaining consistent spray and avoiding nozzle clogging.
Q: Can this nozzle be used in larger burners?
A: Yes, it performs well in burners above 2–3 GPH, providing stable flame and smooth ignition.
Q: How do I select the correct spray pattern?
A: Spray pattern codes:
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A = Hollow Cone
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B = Solid Cone
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W = Semi-Solid Cone
🛒 Shopping Tips
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Match flow rate and spray angle to your burner’s specifications.
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Inspect and replace nozzles showing soot buildup, poor ignition, or flame instability.
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Ensure the spray pattern code (A, B, W) matches your application for optimal performance.
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Clean or replace the sintered filter regularly to maintain reliable operation.
