The Asco 8220G409 Solenoid Valve is built for demanding high-temperature systems. It combines strong flow capacity with Class H coils for both AC and DC service. Its steam rating supports the highest thermal loads in the series, making it ideal for autoclaves, industrial laundries, and molding systems with continuous heat cycling.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-Way
- Pipe Size: 3/4″ NPT
- Flow Factor (Cv): 8.8
- Operating Pressure Differential
- Steam: 5 to 125 psi (AC), 5 to 110 psi (DC)
- Hot Water: 5 to 150 psi (AC), 5 to 150 psi (DC)
- Maximum Fluid Temperature
- AC Steam: 353°F (178°C)
- AC Hot Water: 210°F (99°C)
- DC Steam: 344°F (173°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 watts
- DC: 15.6 watts
- Coil Insulation Class:
- AC: H
- DC: 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: Class H insulation supports elevated duty cycles.
- Strong Flow Capacity: High Cv supports rapid thermal media delivery.
- Dual Voltage Operation: Compatible with AC and DC control systems.
- Steam-Ready Construction: Rated for saturated vapor service.
- Pressure-Stable Build: Reliable performance in variable thermal loads.
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
- Laundry Steam Systems: Delivers heated vapor to press and dryers.
- Molding Equipment: Controls heat cycling in tool temp units.
- Steam Atomization Systems: Regulates vapor discharge in burner assemblies.
- Autoclaves and Sterilizers: Manages high-pressure heat entry.
- Thermal Rinse Loops: Distributes hot water for process cleaning.
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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