The Asco 8220G009 Solenoid Valve is a pilot-operated, normally closed valve suitable for high flow and long service life in harsh thermal environments. With an EPDM/PTFE disc and a watertight RedHat II enclosure, it delivers stable performance under high-pressure steam and hot water conditions. Once opened at higher pressure, the valve will remain open to 3 psi at the inlet.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-Way
- Pipe Size: 1 1/4″ NPT
- Flow Factor (Cv): 15.0
- Operating Pressure Differential:
- Steam: 5 to 50 psi
- Hot Water: 5 to 150 psi
- Maximum Fluid Temperature:
- Steam: 300°F (149°C)
- Hot Water: 210°F (99°C)
- Body Material: Brass
- Seal Material: EPDM or PTFE
- Voltage Options:
- AC: 24, 120, 240, 480 V
- DC: 6, 12, 24, 120, 240 V
- Watt Rating:
- AC: 10.1 watts
- Coil Insulation Class: F
- Solenoid Enclosure:
- Standard: RedHat II – Watertight, Types 1, 2, 3, 3S, 4, and 4X
- Optional: Explosionproof & Watertight, Types 3, 3S, 4, 4X, 6, 6P, 7, and 9
Key Features and Functionality
- High-Volume Capacity: Built for continuous large-system flow.
- Steam and Water Compatible: Reliable in both steam and water service conditions.
- EPDM or PTFE Sealing: Resists deformation and breakdown over time.
- Durable Watertight Housing: Suitable for harsh environments.
- Low-Pressure Hold-Open: The valve remains open down to 3 psi.
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
- Industrial Boilers: Controls flow to and from heat exchangers.
- Food and Beverage Systems: Maintains steam or hot water lines.
- Large Sterilizers: Handles repeated cycling under heat and pressure.
- Process Heating Systems: Supports high-output thermal loops.
- Cleaning and Rinse Stations: Feeds high-temperature utility water.
Compliance and Approvals
- UL Listed
- CSA Certified
- Meets Applicable CE Directives
Installation and Operational Notes
- Confirm the coil voltage matches your power source.
- Depressurize the system before installing or servicing the valve.
- Use a fine strainer upstream to block debris and contaminants.
- Align pipes carefully to avoid straining the valve body.
- Apply power and listen for a click to confirm solenoid actuation.
Series Catalog
Asco Hot Water and Steam Valves Two Way
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