ASCO 8221G3-24V Solenoid Valve

The ASCO 8221G3-24V Solenoid Valve is a high-performance 2-way normally closed valve engineered for precision water service applications in commercial and industrial HVACR systems. This pilot operated solenoid valve features a 1/2" NPT connection and is constructed with a durable brass body and resilient NBR seals, ensuring reliable fluid control. Designed for efficiency, it operates on a 24Vac control circuit and supports a flow capacity of 3.5 Cv, managing pressures between 5 and 150 PSI. A standout feature of the 8221 series is its slow-closing design, which effectively mitigates water hammer issues, protecting your piping infrastructure from destructive pressure surges. The NEMA 4 enclosure provides superior protection against dust and water ingress, making it suitable for demanding environments. Whether you are managing cooling systems or industrial water lines, this ASCO RedHat valve delivers the reliability and longevity required for mission-critical automation.

Key Benefits

• Anti-Water Hammer Design: Specialized slow-closing feature prevents pipe vibration and damage caused by sudden pressure changes.
• High Flow Efficiency: A 3.5 Cv rating ensures optimal throughput for 1/2 inch water service applications.
• Rugged Construction: Built with a heavy-duty brass body and NBR seals for long-lasting performance in water-based media.
• Industrial Protection: The NEMA 4 rated watertight enclosure allows for safe operation in washdown or outdoor environments.
• Reliable Actuation: The 24Vac coil provides consistent normally closed operation for fail-safe system configurations.

Common Questions

What is the best 24V solenoid valve for preventing water hammer?
The ASCO 8221G3-24V is specifically engineered as a slow-closing valve to neutralize the water hammer effect in pressurized systems.

Can this ASCO valve be installed in outdoor environments?
Yes, the NEMA 4 enclosure is designed to protect internal components from falling dirt, rain, sleet, snow, and hose-directed water.

What is the minimum pressure required for this valve to function?
Since this is a pilot-operated valve, it requires a minimum pressure differential of 5 PSI to actuate the internal diaphragm effectively.

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.