The Asco 8220G402 Solenoid Valve is a pilot-operated, normally closed valve designed for use with both high-temperature steam and hot water. With full compatibility across AC and DC circuits, this unit ensures thermal control in critical washdown, sterilization, and heating applications found in industrial equipment and food service systems.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-Way
- Pipe Size: 3/8″ NPT
- Flow Factor (Cv): 4.4
- 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-Media Compatibility: Rated for steam and hot water service.
- Full Voltage Flexibility: Supports AC and DC operations reliably.
- Thermal-Grade Materials: Engineered for high-temperature applications.
- Brass Body Construction: Resists corrosion and scale in wet environments.
- Mounting Flexibility: Can be installed in any orientation.
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
- Sterilization Systems: Controls inlet steam or hot rinse cycles.
- Food Service Equipment: Operates thermal lines in dish stations.
- Laundry Equipment: Distributes hot water to flatwork ironers.
- Autoclaves and Cleaners: Activates controlled steam delivery.
- Thermal Spray Systems: Handles high-temp fluid discharge lines.
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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