Delavan 30609-2 (SNA .20) Siphon Nozzle – Exact Replacement for Lanair 9852

📝 Product Overview

The Delavan 30609-2 Siphon Nozzle (SNA .20) is an industrial-grade nozzle designed for waste oil burners and combustion systems. Known for producing a solid cone spray pattern with ultra-fine particle size, this nozzle operates efficiently at low air pressures and low CFM.

Engineered with relatively large passages, it delivers clog-free performance even with low-volume waste oil applications. The 30609-2 is a direct replacement for Lanair 9852 and is widely used in Lanair waste oil heaters and similar combustion systems.

Note: Order adapter separately (Part Number 17147).

✅ Key Features

• Direct Replacement: Exact same as Lanair 9852 nozzle.

• Solid Cone Spray Pattern: Produces fine, consistent atomization.

• Low Pressure Operation: Works effectively at low CFM and PSI.

• Clog-Free Design: Large internal passages reduce blockage risk.

• Versatile Installation: Can operate in both horizontal and vertical positions.

• Excellent for Waste Oil Applications: Reliable atomization of heavier fuels.

📊 Specifications

⚙️ Installation Notes

• Air compressor must provide at least 10% more air than specified.

• All fuel and air line connections must be tight — leaks affect lift performance.

• Can be used with:

  • Constant level device

  • Fuel metering pump + air compressor

  • Closed pressurized systems (using air pressure for lift + atomization)

⚠️ Common Symptoms (When to Replace)

• Poor spray pattern or uneven flame

• Excessive smoke or soot buildup

• Frequent clogging in old nozzle

• Reduced burner efficiency or failure to ignite

❓ Frequently Asked Questions

Q1: Is this nozzle interchangeable with Lanair 9852?
➡️ Yes, the Delavan 30609-2 is an exact replacement for Lanair 9852.

Q2: Do I need an adapter for installation?
➡️ Yes, order Adapter Part #17147 separately for proper installation.

Q3: Can I mount this nozzle vertically?
➡️ Yes, it works in both vertical and horizontal positions. For vertical setups, measure lift distance from the liquid level to the nozzle face.

Q4: Is it suitable for waste oil burners?
➡️ Yes, it is designed for waste oil and other heavier fuels, offering excellent atomization at low pressure.