ASCO 8221G15 Solenoid Valve

The ASCO 8221G15 is a high-performance 2-way normally closed solenoid valve designed specifically for demanding liquid service applications. Featuring a 2 1/2" NPT connection and a robust brass body, this pilot-operated valve is engineered for high-flow efficiency with a 38 Cv flow coefficient. Operating on 120Vac, the unit utilizes a specialized slow-closing mechanism to effectively eliminate water hammer, protecting your piping system from pressure surges. With an operating pressure range of 5-150 PSI and durable NBR seals, it ensures reliable performance in industrial water systems. The NEMA 4 enclosure provides superior protection against dust and water ingress, making it ideal for harsh environments. Whether managing irrigation, cooling systems, or industrial processing, this ASCO solenoid valve delivers the precision and longevity required by HVACR and plumbing professionals seeking a slow-close water valve solution.

• Water Hammer Prevention: Integrated slow-closing feature mitigates damaging pressure spikes in large-diameter piping.
• High Flow Capacity: Large 2 1/2" orifice and 38 Cv rating support high-volume fluid transfer.
• Rugged Construction: Corrosion-resistant brass body and NBR seals ensure wide chemical compatibility with water and light oils.
• Weatherproof Reliability: NEMA 4 rated watertight enclosure allows for safe installation in washdown or outdoor environments.
• Low Pressure Requirements: Efficient pilot-operated design functions reliably with a minimum differential of only 5 PSI.

What is the primary benefit of a slow-closing solenoid valve?
The slow-closing design of the ASCO 8221G15 is specifically engineered to prevent water hammer, which can cause pipe vibration, noise, and structural damage in high-flow water systems.

Can this valve be used for dry air or gas applications?
No, the 8221 series is optimized for water and liquid service; using it with dry air or gas may result in improper closing or premature seal wear.

What does the NEMA 4 rating signify for this valve?
The NEMA 4 enclosure ensures the solenoid is protected against falling dirt, rain, sleet, snow, and hose-directed water, making it suitable for industrial washdown areas.

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.