Robertshaw 710-502 Gas Valve

The Robertshaw 710-502 Gas Valve is an industry-standard millivolt gas valve specifically engineered for low-capacity heating applications where space is at a premium. This unit features a 1/2 inch inlet and outlet and is factory-calibrated for 3.5 inch WC (Water Column) for natural gas operation, though it is compatible with liquid propane when utilizing the correct conversion components. As a "snap-acting" control, it provides reliable millivolt operation (250mV to 750mV) without the need for external line voltage, making it ideal for space heater gas valve replacements and RV furnace systems.

Built with technical precision, the 710-502 Robertshaw includes a manual gas cock dial with clear "Off-Pilot-On" markings and multi-positional mounting capabilities. The integrated inlet filtered screen protects internal components from debris, while the 1/4 inch tubing pilot outlet ensures a stable flame for thermopile activation. With a capacity of approximately 70,000 BTU, this low capacity gas valve is a robust choice for contractors looking for a direct fit in tight service envelopes.

• Compact Envelope: Designed with a low-profile footprint for installations in restricted spaces like recreational vehicles and small wall heaters.
• Millivolt Reliability: Operates on a 250mV to 750mV range, ensuring the heating system functions independently of electrical grid outages.
• Flexible Mounting: The multi-positional design allows for installation at various angles (except upside down) to accommodate existing manifold configurations.
• Integrated Protection: Features an inlet filtered screen to reduce the risk of pilot orifice clogging and valve seat contamination.
• Quick Connectivity: Equipped with standard NEMA terminals for straightforward lead attachment during replacement.

Is the Robertshaw 710-502 compatible with Propane (LP)?
Yes, while factory-set for natural gas at 3.5" WC, this valve can be used with LP/Propane. However, a regulator conversion kit must be installed to reach the higher pressure requirements (typically 11" WC) for LP systems.

Can I replace a 24V valve with this millivolt model?
No. Millivolt valves like the 710-502 are designed to work solely with a thermopile/thermocouple circuit generating millivolts. Wiring a 24VAC transformer to this valve will cause immediate terminal damage and total component failure.

Does this valve include the necessary reducer bushings?
The standard Robertshaw 710-502 typically includes (2) 1/2" x 3/8" reducer bushings to assist with matching various manifold sizes encountered in the field.

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.