HAGO SN609-4 (SN904 60020) .40 GPH SIPHON NOZZLE

💨 Hago 030L2153 SN609-4 .40 GPH Siphon Nozzle – Air Atomizing

The Hago 030L2153 SN609-4 siphon nozzle delivers precise air atomization for waste oil and other variable fuel oils. Designed to produce a solid cone spray pattern at low air pressures, it ensures fine fuel droplets for efficient and clean combustion. Ideal for applications where fuel viscosity is too high for direct pressure atomizing nozzles.

This nozzle is a direct replacement for Delavan SNA.40, SNA .40, 30609-4, and 306094, providing a reliable solution for maintaining burner performance and ensuring optimal combustion.

✅ Key Features

• ✅ Fine Atomization at Low Air Pressure – Produces optimal spray with lower CFM requirements.

• ✅ Solid Cone Spray Pattern – Ensures uniform fuel distribution for efficient combustion.

• ✅ Multiple Fuel Grade Capability – Works with #2, #4, and pre-heated #5 and #6 fuel oils.

• ✅ Durable Construction – 416 stainless steel parts with brass stem and Viton “O” ring.

• ✅ Air Atomizing Technology – Combines air and fuel in a precision mixing chamber for uniform swirl and fine droplets.

• ✅ Replacement Nozzle – Compatible with Delavan SNA.40, SNA .40, 30609-4, 306094.

⚙️ Specifications

Materials/Construction:

• 416 Stainless Steel nozzle parts

• Brass stem

• Viton “O” ring

🔧 Applications

• Combustion of waste oil and variable waste oil products

• Low-pressure air atomizing for viscous fuels

• #2 and #4 fuel oils standard, pre-heated #5 and #6 fuels compatible

• Ideal for systems requiring efficient, clean combustion

⚠️ Common Symptoms Indicating Replacement Needed

• Inconsistent fuel spray or uneven flame pattern

• Reduced combustion efficiency or poor flame quality

• Burner fails to ignite or repeatedly locks out

• Visible fuel drips or incomplete combustion

• Nozzle clogging or wear detected during maintenance

• Abnormal smoke or soot buildup in the combustion chamber

⚠️ Benefits

• Low Air Pressure Operation – Reduces compressor requirements.

• Excellent Atomization – Creates finer fuel droplets for better combustion efficiency.

• Versatile Fuel Handling – Works across a wide spectrum of waste oils.

• Hago Quality Assurance – Manufactured to precise tolerances for consistent performance.

🛒 Shopping & Installation Tips

• Verify Fuel Compatibility – Ensure the nozzle is suitable for #2, #4, or pre-heated #5/#6 oils.

• Check Replacement Model – Confirm it replaces your existing Delavan nozzle (SNA.40, 30609-4) or equivalent.

• Air Pressure Requirements – Ensure your system provides the correct air pressure (3–5 PSIG).

• Flow Rate Confirmation – Verify your burner system requires a .40 GPH flow rate.

• Proper Installation – Handle nozzle parts carefully, avoid scratches, and ensure the Viton O-ring is properly seated.

• Maintenance – Periodically check for clogging or wear to maintain efficient combustion and fine atomization.

• Stock a Spare – Keep a spare nozzle on hand to minimize downtime.

❓ FAQ (Frequently Asked Questions)

Q: What fuels can the SN609-4 handle?
A: #2, #4, and pre-heated #5 and #6 fuel oils. Best for viscous fuels not suitable for direct pressure nozzles.

Q: Can this nozzle replace Delavan SNA.40?
A: Yes — it is a direct replacement for SNA.40, 30609-4, and other equivalent models.

Q: How does air atomization work?
A: Air and fuel are separately routed to the nozzle and mixed in a precision chamber. Air pressure then swirls the fuel through the orifice to produce a solid cone spray of fine droplets.

Q: Will variations in air or fuel affect performance?
A: Yes — flow rates, spray angles, and droplet sizes can vary with changes in air velocity, lift, or fuel conditions.