Robertshaw 700-422 Gas Valve

The Robertshaw 700-422 Gas Valve is a high-capacity 24V diaphragm gas valve designed for heavy-duty commercial and residential heating applications. This combination gas valve features a 1/2" NPT inlet and a 3/4" NPT outlet, delivering a flow capacity of up to 240,000 BTU. Factory-set at 3.5" WC natural gas pressure regulation, it provides precise manifold pressure control for consistent burner performance. As a 7000BGVER model, it incorporates a manual gas cock, pilot adjustment key, and an inlet filtered screen to protect internal components from line debris. This unit is the recognized direct replacement for EF53CK198 and EF53CK185, making it a critical component for servicing high-output furnaces and boilers. The multi-positional design allows for flexible field installation, while the 1/4" quick-connect terminals and 1/4" pilot outlet ensure a secure interface with existing intermittent pilot or standing pilot ignition systems. Built for professional rigors, it operates reliably in ambient temperatures ranging from -40°F to 175°F.

Key Benefits

• High BTU Capacity: Rated for 240,000 BTU to support large-scale heating equipment.
• Versatile Compatibility: Engineered as a direct drop-in for Carrier and BDP series valves, including EF53CK198.
• Field Serviceable: Includes a pilot gas filter and adjustment key for fine-tuning the pilot flame in the field.
• Flexible Installation: Compact 700 Series chassis can be mounted in any orientation except upside down.
• Debris Protection: Integrated inlet and outlet screens prevent particulate matter from fouling the valve seat.

Common Questions

What is the correct replacement for Carrier EF53CK185?
The Robertshaw 700-422 is the direct technical replacement for the EF53CK185 and EF53CK198 gas valves, matching the 24V electrical requirements and NPT port dimensions.

Can this valve be converted to LP gas?
Yes, while factory-preset for 3.5" WC natural gas, this Robertshaw gas valve is field-convertible to Liquid Propane using the appropriate regulator conversion kit, typically part number 1751-013.

Does this unit include reducer bushings?
Yes, the 700-422 Uni-Kit typically includes one 3/4" to 1/2" NPT reducer bushing to accommodate different piping configurations 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.