Robertshaw 720-402 Valve

The Robertshaw 720-402 is a professional-grade 24V gas valve engineered for intermittent pilot ignition systems in residential and commercial furnaces, boilers, and unit heaters. This Uni-Kit dual gas valve serves as the direct replacement for the discontinued Robertshaw 720-400, featuring a 1/2" NPT inlet and 3/4" NPT outlet. With a high-capacity rating of 150,000 BTU/hr and a 0.5 PSI pressure rating, it provides reliable flow control for natural gas and liquid propane applications. The unit includes a 3/4" x 1/2" reducer bushing and a natural gas to LP conversion kit, allowing for maximum field flexibility. Built for extreme environments, the 720 Series valve operates within a temperature range of -40°F to 175°F. The 3-9/16" swing radius ensures fitment in tight cabinets, while the top-mounted NEMA standard terminals and selector switch streamline electrical connections and regulation adjustments for HVAC technicians.

Key Benefits for Contractors

• Universal Application: The Uni-Kit design replaces Robertshaw 720-400 and various OEM valves, reducing the need for multiple truck stock items.
• Multi-Position Mounting: Engineered for installation in any orientation except upside down, accommodating diverse manifold configurations.
• Complete Field Kit: Includes 3/4" x 1/2" NPT reducer bushings and 1/2" FPT side outlets with plugs for versatile piping requirements.
• Precision Regulation: Factory-set for 3.5" WC natural gas with an easy-access regulator for LP conversion using the provided hardware.
• Integrated Safety: Combines a manual shut-off, safety shut-off magnet, and dual automatic valves into a single compact housing.

Common Questions

Is the Robertshaw 720-402 compatible with LP gas?
Yes, while factory-preset for natural gas, this valve is a dual-fuel component. It includes the necessary conversion kit to safely regulate liquid propane.

Can I use this to replace a 720-400 model?
The Robertshaw 720-402 is the official direct replacement for the 720-400, maintaining the same footprint and pilot ignition specifications.

What are the electrical requirements for this gas valve?
This is a 24V AC control valve with a 0.5 Amp current draw, featuring standard screw/spade terminals for rapid wiring.

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.