ASCO 8221G29 Solenoid Valve

The ASCO 8221G29 Solenoid Valve is a high-performance 2-way normally open solenoid valve designed specifically for demanding water service applications. Featuring a robust brass body and high-quality NBR seals, this 1 1/4" NPT solenoid valve utilizes a pilot operated mechanism to manage pressure ranges from 5 to 150 PSI. Engineered for efficiency, the slow-closing solenoid valve design effectively minimizes water hammer, protecting your piping system from sudden pressure surges. This 120Vac ASCO valve boasts a high flow coefficient of 13 Cv, ensuring optimal fluid delivery in commercial and industrial HVACR environments. The unit is housed in a rugged NEMA 4 enclosure, providing superior protection against dust and water ingress. Whether you are searching for a reliable ASCO slow closing valve or a durable pilot operated water valve, the 8221G29 delivers precision control and long-term reliability for professional fluid automation systems.

• Water Hammer Prevention: The specialized slow-closing feature significantly reduces damaging pressure spikes in plumbing systems.
• High Flow Capacity: A 13 Cv flow rating ensures efficient movement of high volumes of water through the 1 1/4" NPT ports.
• Durable Construction: Built with a heavy-duty brass body and resilient NBR seals for compatibility with standard water applications.
• Weatherproof Reliability: The NEMA 4 watertight enclosure allows for installation in harsh or wash-down environments.

Common Questions

How does this valve prevent water hammer?
The ASCO 8221G29 features a unique internal pilot orifice that controls the speed of the diaphragm movement, resulting in a slow-closing action that mitigates kinetic energy surges in the liquid line.

Can this valve be used for air or gas?
This specific 8221 series model is optimized as a pilot operated water valve. Using it for air or gas may not provide the same slow-closing benefits and could affect performance compared to valves designed specifically for those media.

What is the difference between Normally Open and Normally Closed?
As a Normally Open (NO) solenoid valve, this unit allows fluid to flow when the coil is de-energized and closes only when 120Vac power is applied.

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.