ASCO 8210B57-24V Solenoid Valve

The ASCO 8210B57-24V Solenoid Valve is a high-performance, 2-way normally open pilot-operated valve designed for reliable control in general service applications. Engineered with a durable brass body and high-quality NBR seals, this 1-inch NPT valve is optimized for handling air, water, and light oil. Operating on a 24Vac power supply, it features a generous 13 Cv flow factor and maintains consistent performance within a pressure range of 0-125 PSI. This industrial solenoid valve is ideal for demanding environments, including commercial laundry equipment, air compressors, and water control systems. Its NEMA 1 enclosure provides essential protection for indoor use, ensuring the longevity of the internal pilot-operated mechanism. Whether you are replacing an existing ASCO RedHat valve or integrating a new normally open solenoid into your HVACR or fluid control system, this model delivers the fast-acting response and high-flow capacity required for professional-grade installations.

• High Flow Efficiency: Features a high 13 Cv rating to ensure maximum throughput for water and air systems.
• Versatile Media Compatibility: Specifically rated for air, water, and light oil (up to 300 SSU), making it a versatile choice for diverse industrial tasks.
• Rugged Construction: Built with a heavy-duty brass body and resilient Bun-N (NBR) seals for long-term durability.
• Normally Open Operation: Designed to remain open when de-energized, providing a fail-safe flow for specific safety and process requirements.
• Compact Integration: The 1" NPT connection and standard 24V AC coil allow for seamless installation in existing plumbing and control circuits.

What is the difference between a normally open and normally closed valve?
A normally open valve, like this ASCO 8210B57, allows fluid to pass through when the coil is not powered. When 24Vac is applied, the valve closes. This is the opposite of a normally closed valve, which requires power to open.

Can this valve be used for high-temperature steam applications?
This specific model is rated for general service with fluids up to 180°F. For high-pressure steam, a specialized high-temperature solenoid valve with PTFE or EPDM seals should be used instead.

Is the ASCO 8210B57 suitable for outdoor installation?
The standard configuration features a NEMA 1 enclosure, which is intended for general-purpose indoor use. For outdoor or washdown environments, a NEMA 4 or 4X rated enclosure would be required.

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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