Robertshaw 10-021 Orifice

The Robertshaw 10-021 Orifice is a precision-engineered Natural Gas pilot injector designed for high-performance combustion in commercial cooking and heating applications. Machined from durable brass, this 0.018-inch orifice (also known as a #51 orifice) serves as a critical metering component to ensure a stable and consistent pilot flame. It is specifically engineered for Robertshaw 1820 and 1830 series pilots, including the 2C, 2CH, 2S, and 2SH configurations commonly found in South Bend Range and Vulcan equipment.

For field technicians, compatibility is straightforward: this uni-line component integrates seamlessly with either 3/16-inch or 1/4-inch pilot tubing. By maintaining an exact gas flow rate at a rated pressure of 25 psig, the 10-021 helps prevent common ignition failures and pilot outages in commercial gas appliances. Whether you are performing a pilot burner repair on a furnace, boiler, or professional range, using the specified Natural Gas orifice size is essential for meeting OEM specifications and maintaining safe equipment operation.

• Precise Gas Metering: The .018-inch bore diameter provides the exact Natural Gas volume required for 1820 and 1830 series pilot assemblies.
• Versatile Tubing Fit: Dual-compatibility design allows for secure installation on both 3/16" and 1/4" gas tubing lines.
• Industrial-Grade Construction: Corrosion-resistant brass material withstands the high-temperature environment of an active pilot flame.
• OEM Compatibility: Direct replacement for Robertshaw 10-021, ensuring perfect physical and mechanical fit without modifications.

What pilot models is the Robertshaw 10-021 compatible with?
This orifice is designed for Robertshaw 1820 and 1830 series pilot burners, which are standard in many industrial ovens and commercial heating systems.

Can the 10-021 orifice be used with Liquid Propane (LP)?
No, this specific part is calibrated for Natural Gas pressures only. For LP applications, a smaller orifice (typically .010 or .011) must be used to prevent over-firing.

What size wrench is needed for the pilot orifice replacement?
Most Robertshaw pilot assemblies utilize standard small-frame hex sizes, but always ensure a snug fit on the brass flats to avoid stripping the soft metal during installation.

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.