Robertshaw 700-049 Ignition Valve

The Robertshaw 700-049 is a high-capacity pilot ignition gas valve designed for demanding commercial applications, including commercial ovens, fryers, and space heating equipment. This 700 series gas valve features a 1/2" NPT inlet and outlet with a 300,000 BTU capacity, making it a versatile component for field service replacements. It operates as a millivolt gas valve, utilizing a thermopile-driven system that eliminates the need for external power, providing reliable ignition in remote or power-outage-sensitive environments. The unit includes a manual valve, pilot safety filter, and a main gas regulator. Engineered for natural gas systems, this valve ensures precise flow control and safety shut-off performance. Its 3-position outlet configuration and multi-position mounting capabilities allow for flexible installation in tight mechanical footprints. When replacing Robertshaw ignition controls, verify the pressure regulator setting and port orientation to maintain OEM combustion specifications.

Key Technical Benefits

• High BTU Capacity: Rated for up to 300,000 BTU to support large-scale commercial kitchen and heating appliances.
• Millivolt Compatibility: Operates on a 250mV to 750mV thermopile system for standalone reliability.
• Flexible Installation: Features a multi-position mounting design and 1/2" NPT connections for standard piping.
• Integrated Safety: Includes a built-in pilot safety magnet and high-quality internal filtration to prevent orifice clogging.
• Field Adjustable: Equipped with a gas pressure regulator factory-set at 3.5" W.C. for natural gas consistency.

Common Installation Questions

What is the correct replacement for a 700-049 valve?
The 700-049 is a standard unitrol gas valve. Ensure your existing thermopile is generating at least 325mV under load for the magnet to stay engaged properly.

Can this valve be converted to Liquid Propane (LP)?
While the 700 series is versatile, this specific model is configured for Natural Gas. A conversion kit must be used to adjust the regulator spring and orifice for LP gas applications.

Does this valve require an external transformer?
No, as a millivolt control, it generates its own operating voltage via the pilot flame heating the thermopile/generator.

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.