The Asco 8220G411 Solenoid Valve is a pilot-operated, normally closed valve engineered for high-temperature, high-volume flow in steam and hot water systems. The Class H coil and high Cv design support rapid media transfer and thermal stability in 1″ circuits, making it ideal for autoclaves, laundries, and heat-intensive processing lines.
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 125 psi
- Hot Water: 5 to 150 psi
- Maximum Fluid Temperature
- AC Steam: 353°F (178°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: H
- 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-Temperature Coil Design: The Class H insulation withstands extreme thermal duty.
- Large-Capacity Flow: High Cv supports rapid transfer in 1″ systems.
- Steam-Rated Performance: Suitable for saturated vapor up to 353°F.
- Stable Pilot Actuation: Maintains reliability under varying system loads.
- Thermal Fluid Compatibility: Built for both steam and hot water service.
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
- Autoclaves and sterilizers: Enables the delivery of steam to sealed heating chambers.
- Industrial Laundries: Feeds high-volume water and vapor systems.
- Steam Atomization Units: Controls flow to burner and nozzle assemblies.
- Molding Temperature Units: Manages thermal cycling media.
- Thermal Spray Systems: Directs hot fluid to surface process tools.
Compliance and Approvals
- UL Listed
- CSA Certified
- CE Compliant
Installation and Operational Notes
- Ensure the solenoid coil voltage matches the system power.
- Depressurize the system and clean the piping before installation.
- Install a strainer or filter at the valve inlet to catch debris.
- Avoid overtightening and do not stress the valve body.
- Energize the coil after wiring to confirm actuation with an audible click.
Series Catalog
Asco Hot Water and Steam Valves Two Way
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance.