ASCO 8220G403 Solenoid Valve

The ASCO 8220G403 is a high-performance 2-way normally closed solenoid valve designed specifically for demanding steam and hot water applications. This pilot operated solenoid valve features a robust brass body and a 3/8" NPT connection, ensuring reliable fluid control in industrial HVACR systems. Engineered with a durable EPDM diaphragm, it manages high-temperature media with ease, supporting a pressure range of 5-125 PSI for steam and 5-150 PSI for hot water. Operating on a standard 120Vac power supply, this unit provides a high flow coefficient of 4.4 Cv for efficient throughput. The integrated NEMA 4X enclosure offers superior protection against corrosion and environmental elements, making it an ideal choice for washdown environments. Whether you are searching for a heavy-duty steam valve or a reliable ASCO RedHat valve replacement, this professional-grade component ensures precision and longevity in critical thermal management processes.

• High Temperature Resistance: Specifically designed to withstand the rigors of hot water and steam service.
• Robust Protection: Featuring a NEMA 4X watertight enclosure to prevent moisture ingress and mechanical wear.
• Efficient Flow Control: A 4.4 Cv rating allows for significant volume movement through a compact 3/8" NPT port.
• Zero Minimum Pressure Not Required: The pilot-operated design ensures stable performance within specified pressure ranges.

What is the maximum temperature rating for the EPDM diaphragm?
The EPDM internals are optimized for hot water and steam applications, typically handling temperatures up to 300°F (149°C) depending on the medium and pressure.

Can this valve be mounted in any orientation?
For optimal performance and to prevent sediment buildup, it is recommended to mount the ASCO 8220G403 with the solenoid vertical and upright.

Is this valve suitable for outdoor use?
Yes, the NEMA 4X rating ensures the housing is protected against windblown dust, rain, and hose-directed water.

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.