The Asco 8220G410 Solenoid Valve is a pilot-operated, normally closed valve built for high-volume flow in steam and hot water systems. Its high Cv rating delivers strong throughput for 1″ piping, making it ideal for laundries, sterilizers, and thermal rinse systems where fast media transfer and pressure efficiency are critical.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-Way
- Pipe Size: 1″ NPT
- Flow Factor (Cv): 11.5
- Operating Pressure Differential
- Steam: 5 to 50 psi
- Hot Water: 5 to 150 psi
- Maximum Fluid Temperature
- AC Steam: 300°F (149°C)
- AC 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 watts
- Coil Insulation Class: F
- Solenoid Enclosure:
- Standard: NEMA 4X, IP65 (Watertight, Corrosion-Resistant)
- Optional: Explosionproof & Watertight (Types 3-9), Raintight (Types 3, 7, 9)
Key Features and Functionality
- High-Capacity Flow Path: Built for full-volume discharge at 1″ scale.
- Steam and Water Rated: Reliable in both vapor and fluid environments.
- Thermal Service Coil: Class F insulation for hot duty cycles.
- Brass Construction: Resistant to thermal stress and corrosion.
- Stable Pilot Control: Responds smoothly under process fluctuation.
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
- Commercial Laundries: Delivers hot water to tunnel washers.
- Sterilization Systems: Controls high-temp steam entry.
- Molding Circuits: Feeds heated media for tool cycling.
- Steam Atomization Units: Handles vapor flow to nozzle sets.
- Autoclave Feed Lines: Maintains hot inlet pressure during cycling.
Compliance and Approvals
- UL Listed
- CSA Certified
- CE Compliant
Installation and Operational Notes
- Verify solenoid coil voltage before energizing.
- Depressurize all lines before installation or service.
- Install a fine-mesh strainer upstream of the valve inlet.
- Avoid misalignment or torque when connecting piping.
- After wiring, energize the coil and confirm audible actuation.
Series Catalog
Asco Hot Water and Steam Valves Two Way
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