ASCO 8220G404-24V Solenoid Valve

The ASCO 8220G404-24V is a rugged 2-way normally closed solenoid valve engineered for demanding high-temperature fluid control in commercial and industrial settings. This pilot operated valve features a 1/2" NPT connection and a robust brass body, optimized for steam and hot water applications. With a 4.7 Cv flow coefficient, it maintains reliable performance under pressure, handling 5-50 PSI for steam and up to 150 PSI for hot water. The integration of an EPDM diaphragm ensures thermal resistance and longevity when exposed to high-cycle steam service. Operating on 24VAC power, this unit includes a NEMA 4X enclosure, providing superior protection against corrosion and moisture in harsh mechanical rooms. Designed for field reliability, the 8220 series minimizes pressure drop while maximizing flow capacity, making it a standard choice for boiler feed lines and heat exchanger control systems where ASCO RedHat quality is required.

• High-Temperature Durability: Specifically designed to handle steam and hot water applications without premature seal failure.
• Superior Protection: The NEMA 4X watertight enclosure allows for installation in wash-down environments or high-humidity areas.
• Optimized Flow: High 4.7 Cv rating ensures efficient fluid transfer and reduced system turbulence.
• Field Proven Design: Pilot-operated piston construction provides reliable shifting even in high-cycle industrial environments.

Common Questions:

What is the maximum fluid temperature for the ASCO 8220G404?
This valve is rated for steam up to 300°F and hot water up to 210°F thanks to its specialized EPDM elastomers.

Can this valve be mounted in any orientation?
For optimal performance and to prevent debris accumulation in the core tube, it is recommended to mount the valve with the solenoid upright and vertical.

Is this valve suitable for low-pressure systems?
The 8220G404 requires a minimum differential pressure of 5 PSI to function correctly as it is a pilot-operated assembly.

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.