ASCO 8221G3-240V Solenoid Valve

The ASCO 8221G3-240V Solenoid Valve is a high-performance 2-way normally closed valve engineered specifically for water service where system protection is a priority. This 1/2" NPT solenoid valve features a specialized slow closing pilot-operated design with an integral snubber that effectively mitigates water hammer. By slowing the disc closing speed, the ASCO 8221G3 reduces pressure spikes, often eliminating the need for additional surge suppressors in commercial and industrial plumbing. This 240Vac solenoid valve provides a 3.5 Cv flow coefficient and manages pressures from 5 to 150 PSI. The rugged brass body is equipped with durable NBR seals (Buna-N), ensuring reliable liquid control in temperatures up to 212°F. Housed in a NEMA 4 enclosure, this unit is protected against water ingress, making it an ideal HVACR replacement part for irrigation, laundry equipment, and water treatment systems requiring precise fluid automation.

• Water Hammer Prevention: Integrated snubber technology ensures slow closing operation to protect pipes and components from hydraulic shock.
• High Flow Efficiency: A 3.5 Cv rating allows for optimal fluid throughput in 1/2 inch NPT piping systems.
• Heavy-Duty Construction: The brass body and NBR seals offer superior durability for hot and cold water applications.
• Environmental Protection: The watertight NEMA 4 enclosure allows for safe installation in demanding or wash-down environments.
• Reliable 240V Control: Designed for 240Vac electrical systems, providing a standard solution for industrial power requirements.

What is the minimum pressure required for this valve to operate?
As a pilot operated valve, it requires a minimum pressure differential of 5 PSI to open and approximately 3 PSI to remain open.

Can this valve be used for steam applications?
No, the ASCO 8221G3 is specifically rated for water service. For steam, a high-temperature EPDM or PTFE seated valve from the ASCO 8220 series is generally recommended.

Why is my solenoid valve making a buzzing sound?
Buzzing in AC solenoid valves is often caused by low voltage, debris in the core tube, or a missing/damaged shading coil. Regular cleaning of the internal armature helps maintain quiet operation.

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.

This item is not eligible for free shipping.