Williams P295301A Gas Valve

The Williams P295301A LP Gas Valve is an OEM millivolt replacement gas valve designed specifically for Liquid Propane (LP) direct-vent wall heaters. This Honeywell gas valve provides precise fuel regulation and ensures stable manifold pressure for consistent combustion performance. Built for durability in high-demand heating applications, the P295301A features a high-temperature sealing interface and standard 1/2-inch NPT inlet/outlet connections for seamless integration into existing direct-vent furnace gas lines. Because this component operates on a millivolt signal generated by a thermopile, it functions independently of external power, making it a critical part for off-grid operations or backup heating systems. When replacing a Williams furnace gas valve, verify that the pilot assembly and thermocouple are within spec to ensure proper voltage for the solenoid. Using OEM Williams replacement parts maintains the original equipment’s AHRI certification and combustion safety profiles.

Technical Key Benefits

• Precise LP Regulation: Calibrated for Liquid Propane to prevent over-firing and ensure optimal 10.0" W.C. manifold pressure.
• Millivolt Operation: Compatible with 750mV power-pile systems for reliable heating without 120V electrical requirements.
• Direct-Vent Compatibility: Specifically engineered for Williams Top-Vent and Direct-Vent wall furnaces.
• Rugged Construction: Designed to withstand the thermal cycling typical of commercial and residential wall heaters.
• Simplified Installation: Standard NPT threading and side-tap pressure ports facilitate rapid field testing and pressure adjustments.

Common Questions

Does this valve require an external power source?
No, the Williams P295301A is a millivolt-actuated valve that generates its own operating current via the heat from the pilot flame acting on a thermopile.

Can I use this gas valve for a natural gas conversion?
No, this specific model is factory-configured for LP Gas. Converting a LP gas valve to Natural Gas without a certified conversion kit and spring replacement is unsafe and not recommended.

What are the signs of a failing millivolt gas valve?
Common indicators include the pilot light staying lit while the main burner fails to ignite, or inconsistent burner pressure causing "rumbling" during the combustion cycle.

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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.