The Asco 8221G003 Solenoid Valve (8221G3) is a compact pilot-operated solenoid valve designed for precise water flow control in industrial and commercial systems. Its slow-closing snubber reduces pressure spikes, preventing water hammering and extending the lifespan of connected equipment. Built with a durable brass body and NBR seals, it ensures reliable operation in automated fluid management applications.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-way
- Pipe Size: ½” NPT
- Flow Factor (Cv): 3.50
- Operating Pressure Differential:
- Water: 5 to 150 psi (AC) / 5 to 125 psi (DC)
- Maximum Fluid Temperature:
- AC: 180°F (82°C)
- DC: 150°F (65°C)
- Body Material: Brass
- Seal Material: NBR (Nitrile Butadiene Rubber), PTFE
- Voltage Options:
- AC (60Hz): 24, 120, 240, 480V
- AC (50Hz): 110, 220V
- DC: 6, 12, 24, 120, 240V
- Watt Rating:
- AC: 6.1 watts
- DC: 11.6 watts
- Coil Insulation Class: F
- Solenoid Enclosure:
- Standard: RedHat II (Watertight, Types 1-4X); RedHat (Type I)
- Optional:
- RedHat II (Explosionproof & Watertight, Types 3-9)
- RedHat (Explosionproof & Raintight, Types 3, 7, 9)
Key Features and Functionality
- Slow Closing Mechanism: Reduces water hammer effects, preventing pressure surges.
- Pilot Operated Design: Provides efficient fluid control with low power consumption.
- Compact Size: Ideal for applications with space constraints while maintaining performance.
- Durable Construction: Corrosion-resistant brass body with long-lasting internal components.
- Certified for Safety: Meets UL, CSA, and CE standards for industrial compliance.
Compatible Components & Related Parts
- Replacement coils are available for general-purpose and explosion-proof applications.
- Mounting accessories compatible with NPT pipe sizes for secure installation.
Industry Applications
- Industrial Automation: Ensures precise process control and efficiency.
- Commercial Plumbing: Supports reliable water distribution systems.
- HVAC Systems: Maintains regulated water flow for performance.
- Equipment Protection: Prevents damage in automated fluid handling.
Compliance and Approvals
- CSA Certified
- UL Listed (General Purpose Valves)
- CE Compliant (RedHat II series)
Installation & Operational Notes
- Minimum 5 psi, operates down to 3 psi.
- Ensure safe testing after reassembly.
- Order with HT and HW prefixes for higher fluid temperatures.
- Must specify voltage at the time of ordering.
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance.