Delavan 00400-60W7 Oil Burner Nozzle – 4.00 GPH, 60° W Semi-Solid Spray w/ Mesh Strainer

✅ Key Features

✔ Precision-engineered oil burner nozzle for clean, efficient combustion
✔ 4.00 GPH flow rate for high-capacity residential and commercial burners
✔ 60° spray angle for proper flame shaping and heat distribution
✔ “W” Semi-Solid cone spray pattern for stable ignition and smooth burn
✔ Integrated mesh strainer filters debris and protects burner components
✔ Factory-calibrated for accurate oil atomization
✔ OEM Delavan quality – trusted by HVAC professionals

📊 Specs Table

⚠ Common Symptoms This Nozzle Fixes

• Hard starts or delayed ignition
• Smoky exhaust or strong oil odor
• Poor flame shape or unstable burner flame
• Soot buildup in combustion chamber
• Inconsistent heat output
• Nozzle clogging due to debris contamination

❓ Frequently Asked Questions (FAQ)

Q: What does “W” spray pattern mean?
A: “W” indicates a semi-solid cone spray, offering a balanced flame shape for smooth ignition and stable combustion.

Q: Is the mesh strainer important?
A: Yes — it filters debris before it reaches the burner, extending pump and nozzle life.

Q: Can I use this nozzle on any oil burner?
A: Only if your burner manufacturer specifies 4.00 GPH, 60°, W pattern. Always match your original nozzle exactly.

Q: How often should oil nozzles be replaced?
A: Typically once per heating season or during annual burner service.

🛒 Shopping Tips

🧭 Always match both GPH and spray angle to your burner’s specifications
🔄 Spray Pattern Codes:
• A = Hollow Cone
• B = Solid Cone
• W = Semi-Solid Cone
Using the wrong pattern can cause flame issues and poor combustion
🧰 Replace your oil filter when changing nozzles to prevent clogging