The Asco 8220G405 Solenoid Valve is a pilot-operated, normally closed valve built for steam and hot water control in systems requiring AC or DC voltage. With full dual-voltage support and high fluid temperature tolerance, it’s ideal for industrial thermal processing, sanitization loops, and food service heating lines.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-Way
- Pipe Size: 1/2″ NPT
- Flow Factor (Cv): 4.7
- Operating Pressure Differential
- Steam: 0 to 50 psi (AC), 0 to 50 psi (DC)
- Hot Water: 0 to 150 psi (AC), 0 to 100 psi (DC)
- Maximum Fluid Temperature
- AC Steam: 300°F (149°C)
- AC Hot Water: 210°F (99°C)
- DC Steam: 300°F (149°C)
- DC Hot Water: 210°F (99°C)
- Body Material: Brass
- Seal Material: EPDM, PTFE, or TFE/P
- Voltage Options:
- AC: 24, 120, 240, 480, 110V
- DC: 6, 12, 24, 120, 240V
- Watt Rating:
- AC: 10.1/F watts
- DC: 15.6/H watts
- Solenoid Enclosure:
- Standard: NEMA 4X, IP65 (Watertight, Corrosion-Resistant)
- Optional: Explosionproof & Watertight (Types 3-9), Raintight (Types 3, 7, 9)
Key Features and Functionality
- Dual-Coil Compatibility: Supports both AC and DC voltage types.
- Class H Insulation: Reliable under extended thermal cycling.
- Full-Range Pressure: Operates from 0 psi inlet conditions.
- Steam-Compatible Build: Withstands high vapor temperature exposure.
- Brass Body Design: Resists corrosion from water and steam media.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Mounting Brackets
- ASCO Seal Kit for 8220 Series
- ASCO Explosionproof Solenoid Enclosure
Industry Applications
- Steam Cleaning Units: Directs high-temp media for washdown.
- Thermal Sanitizers: Controls hot fluid inlet during cycles.
- Food Prep Boilers: Handles high-temp rinse water delivery.
- Industrial Dish Machines: Activates steam and hot water entry.
- Laundry Heating Systems: Manages high-pressure hot rinse valves.
Compliance and Approvals
- UL Listed
- CSA Certified
- CE Compliant
Installation and Operational Notes
- Use the correct coil voltage before energizing.
- Always depressurize lines before installing the valve.
- Install a strainer upstream near the valve inlet.
- Avoid misalignment or pipe strain on the valve body.
- Energize the coil to confirm solenoid actuation with an audible click.
Series Catalog
Asco Hot Water and Steam Valves Two Way
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