ASCO 8220G407-24V Solenoid Valve

The ASCO 8220G407-24V Solenoid Valve is a high-performance, 2-way normally closed control solution engineered specifically for demanding steam and hot water applications. Featuring a 3/4 inch NPT connection and a robust brass body, this pilot-operated valve delivers a high flow coefficient of 8.8 Cv, ensuring efficient fluid management in industrial HVACR systems. Designed to handle 24Vac power, it operates reliably within a pressure range of 5-50 PSI for steam and 5-150 PSI for hot water. The integration of a duratemp EPDM diaphragm and a rugged NEMA 4X enclosure provides exceptional resistance to high temperatures and corrosive environments. This ASCO RedHat series valve is frequently utilized in autoclaves, laundries, and steam atomization systems where zero differential pressure or high-cycle durability is required. By combining a pilot-operated diaphragm with a threaded bonnet for easy maintenance, this 24V AC solenoid valve minimizes downtime and optimizes energy consumption in critical process cooling and heating loops.

Key Benefits:

• Dual-Service Versatility: Specifically rated for both hot water and steam, reducing the need for multiple valve types in your inventory.
• High Flow Efficiency: The 8.8 Cv flow capacity provides up to 60% more flow than standard 2-way valves, preventing pressure fluctuations.
• Industrial-Grade Protection: Equipped with a NEMA 4X watertight enclosure to protect electrical components from washdowns and corrosion.
• Simplified Maintenance: Features a threaded bonnet design that allows for quick internal inspection and cleaning without removing the valve from the piping.
• Reliable Sealing: High-temperature EPDM elastomers ensure a positive seal and long-lasting performance across thousands of cycles.

Common Questions:

What is the minimum pressure required for this valve to operate?
The ASCO 8220G407 is a pilot-operated valve and requires a minimum operating pressure differential of 5 PSI to open properly. Once opened, it will typically remain open down to approximately 3 PSI.

Can I use this valve for drinking water systems?
No, this brass-bodied valve is intended for industrial water and steam control and is not certified as lead-free under the Safe Drinking Water Act (SDWA).

How should this solenoid valve be mounted?
For maximum service life and to prevent foreign matter from accumulating in the solenoid base, it is recommended to mount the solenoid vertically and upright, though it is designed to function in any position.

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.

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