Robertshaw 700-205 Gas Valve

The Robertshaw 700-205 Gas Valve is a high-capacity snap-throttle hydraulic gas valve designed for precision temperature regulation in space heating and commercial cooking equipment. Engineering for natural gas applications, this 1/2-inch NPT pipe size control features a 100,000 BTU capacity and a 36-inch capillary for flexible sensing bulb placement. The snap-throttle mechanism provides efficient modulation, snapping to 50% capacity upon a call for heat and modulating up to full input to maintain the 58°F to 90°F setpoint. This unit is a direct 700-205 replacement for obsolete field components including the Robertshaw 700-202, 700-213, and Honeywell V5267E 1223. Built with an internal 3.5-inch WC pressure regulator and a filtered pilot gas screen, it ensures stable burner performance and protects internal orifices from line debris. This combination gas control integrates a manual gas cock, automatic pilot safety, and a hydraulic operator into a single multiposition housing capable of mounting in any orientation except upside down.

• Versatile Compatibility: Direct replacement for 700-202 and 700-213 gas valves, simplifying retrofits in the field.
• Precise Modulation: The snap-throttle operator prevents rapid cycling by modulating gas flow based on sensing bulb demand.
• Integrated Safety: Features an automatic pilot valve that provides 100% gas shutoff in the event of pilot outage.
• Durable Construction: Includes an inlet filtered screen to prevent contamination of the thermostatic gas control seat.
• Flexible Installation: The 36-inch capillary and multiposition mounting capability accommodate various appliance cabinet configurations.

What is the difference between snap-action and snap-throttle valves?
A snap-action valve is strictly on/off, whereas a snap-throttle hydraulic valve like the 700-205 modulates the gas flow between a minimum 50% rate and full capacity before snapping off once the setpoint is reached.

Can the Robertshaw 700-205 be used with LP (Propane)?
This specific model is factory-set for Natural Gas with a 3.5" WC regulator. Converting hydraulic models to LP requires replacing the operator assembly and orificing, as the regulator is built into the operator.

What should I check if the pilot won't stay lit?
Ensure the 1/4" pilot tubing is clear and the thermocouple is generating at least 8 to 12 millivolts under a closed-circuit load. If the pilot flame is too small, adjust the pilot key behind the adjustment cap on the valve body.

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.