ASCO 8210G94-24VDC Solenoid Valve

The ASCO 8210G94-24VDC Solenoid Valve is an internal pilot-operated 2-way normally closed (N/C) valve, engineered for high-flow reliability in HVACR and industrial fluid control. Featuring a 1/2" NPT threaded connection and a robust brass body, this general service valve provides a 4 Cv flow capacity for air and water applications. It is equipped with NBR (Buna-N) seals, enabling it to handle media temperatures up to 180°F, while the NEMA 4X enclosure ensures watertight and corrosion-resistant protection for the 24 VDC solenoid in harsh environments.

Designed for systems requiring steady performance between 0-40 PSI, the ASCO RedHat II 8210 Series is often found in commercial laundry equipment, air compressors, and water treatment systems. Its diaphragm construction allows for low internal leakage and a long service life under heavy duty cycles. When installing, verify that your 24V DC power supply provides at least 85% of nominal voltage to ensure proper pilot actuation and prevent coil burnout.

• High Flow Efficiency: The 4 Cv rating ensures minimal pressure drop across the 5/8" orifice for high-demand fluid handling.
• Environmentally Rugged: The NEMA 4X rated solenoid head protects electrical components from moisture and wash-down procedures.
• Fail-Safe Design: The 2-way normally closed configuration ensures the valve returns to the closed position if the 24V DC circuit is interrupted.
• Versatile Media Compatibility: Standard NBR seals are optimized for air, inert gas, and water service.

Common Questions

What is the minimum pressure differential required for this valve?
As a pilot-operated valve, the ASCO 8210G94 generally requires a minimum operating pressure differential (typically 5 PSI) to lift the diaphragm, though some 8210 series variants are rated for 0 PSI minimum. Always check the nameplate for the specific minimum differential of your unit.

Can this valve be mounted in any orientation?
While ASCO valves are designed for flexibility, it is a best practice for veterans to mount the valve with the solenoid upright and vertical to reduce the risk of sediment accumulation in the core tube.

What causes a humming or buzzing noise in a DC solenoid?
In 24 VDC models like this one, humming often indicates a low voltage supply or a mechanical obstruction (debris) prevents the core from seating fully against the plugnut.

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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