ASCO 8214G20 Solenoid Valve

The ASCO 8214G20 Solenoid Valve is a rugged, 2-way normally closed fuel gas shutoff valve engineered for precision control in commercial and industrial combustion systems. Specifically designed for on-off fuel gas service, this pilot-operated valve features a lightweight yet durable aluminum body and high-performance NBR seals, ensuring a tight seal for safety-critical applications. With a 1/2" NPT connection and a 120Vac coil, it delivers a flow coefficient of 4.4 Cv and handles capacities up to 238,500 BTU/hr. Its unique zero-differential design allows for reliable operation across a 0-5 PSI pressure range, making it a staple for gas burners, furnaces, and ovens where low-pressure drop and high flow capacity are required.

Built to withstand demanding environments, the ASCO RedHat II series construction includes a NEMA 4X enclosure for superior watertight and corrosion resistance. The internal pilot-operated diaphragm provides rapid shutoff response times in less than one second, satisfying strict safety shutoff requirements. Technicians value the integrated 1/8" NPT pipe taps for routine downstream pressure testing, simplifying field maintenance without breaking the main line.

• Versatile Mounting: Can be installed in any orientation, providing flexibility in tight burner manifold configurations.
• Zero Minimum Pressure: Operates reliably from 0 PSI, essential for low gas supply pressure locations.
• Robust Environmental Protection: NEMA 4X rating ensures longevity in washdown or corrosive industrial zones.
• Optimized Flow: High 4.4 Cv rating minimizes pressure drop across the valve train, improving burner efficiency.
• Serviceable Design: Standard RedHat II coils and ASCO rebuild kits allow for straightforward field repair.

What causes this valve to chatter or fail to shift?
Chattering often indicates a low voltage issue or a damaged shaded pole piece. Ensure the 120Vac supply is within ±10% of the rated voltage. If the valve fails to open, verify there is no mechanical obstruction or debris in the pilot orifice, as this model relies on internal piloting.

Is the ASCO 8214G20 compatible with propane?
Yes, this aluminum body solenoid valve is rated for various fuel gases including natural gas, propane (LP gas), and air, provided the operating pressure remains below 5 PSI.

Can I replace the coil without removing the valve body?
Yes, the ASCO 8214G20 features a plug-in style coil that can be replaced without depressurizing the gas line, reducing downtime during maintenance cycles.

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.