The Asco 8220G407 Solenoid Valve is a pilot-operated, normally closed valve designed for high-throughput steam and hot water systems. Built for consistent performance in thermal environments, it combines a high Cv rating with efficient low-wattage operation, making it a strong choice for rinse lines, washers, and heating equipment with sustained cycle demands.
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 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: 6.1 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 Design: Supports thermal systems with strong output demand.
- Pilot-Operated Control: Stable response during heating or rinse cycles.
- Thermal Fluid Rated: Built for hot water and steam service.
- Low Power Consumption: Efficient actuation with minimal energy load.
- Midline Pipe Compatibility: Ideal for 3/4″ utility and system feeds.
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
- Food Equipment Rinse Lines: Delivers hot water to spray nozzles.
- Sterilization Units: Controls the inlet during steam-up cycles.
- Utility Heating Systems: Maintains flow in hot loop networks.
- Industrial Dish Machines: Directs heated water to cleaning headers.
- Thermal Washdown Stations: Activates controlled high-temp discharge.
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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