Robertshaw 10-166 Pilot Orifice

The Robertshaw 10-166 is a high-precision LP gas pilot orifice engineered specifically for the 1810-100 Uni-Pilot Kit and 1800/1810 series (2B, 2BLC, 9B) pilot assemblies. Featuring a fixed .011" orifice size, this component ensures a consistent and stable pilot flame crucial for the reliable ignition of main burners in commercial cooking and high-demand HVACR systems. It is designed to interface seamlessly with 1/4" pilot tubing, providing a gas-tight fit and maintaining precise pressure drops required for liquid propane applications.

For technicians performing propane conversions or repairing legacy pilot burners, the Robertshaw 10-166 serves as an essential direct replacement. Its robust construction resists the typical fouling and carbon buildup found in LP-fired systems, ensuring the thermal signal to the thermocouple remains constant. This part is a staple in kits used to replace obsolete 2B pilot models, making it a critical stock item for field service and maintenance of vintage and modern gas-fired equipment alike.

• Specifically calibrated for liquid propane (LP) applications with a precise .011" drill size.
• Compatible with Robertshaw 1800 and 1810 Series pilot assemblies, including the 2B and 9B configurations.
• Engineered for a secure connection to standard 1/4" OD pilot tubing.
• Direct replacement for the 1810-100 Uni-Pilot Kit, ensuring proper flame geometry and ignition reliability.

Is the Robertshaw 10-166 compatible with natural gas systems?
No, this orifice is specifically sized for 1/4" tubing at .011" for LP gas. Using this on a natural gas system would result in an insufficient pilot flame; for natural gas, use the .018" equivalent.

Can this orifice be used with 3/16" tubing?
While some Robertshaw orifices are universal, the 10-166 is dedicated to 1/4" tube sizes to ensure the correct compression fit within the 1810 series pilot burner body.

How do I ensure this is the correct orifice for my pilot assembly?
Verify the stamped number on your existing orifice or check the pilot assembly series. This part is correct for 1800 and 1810 series models where a 1/4" line and propane fuel are specified.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.