The Asco 8220G079 Solenoid Valve (8220G79) is a pilot-operated, normally open valve designed for large-scale steam and hot water applications. Its brass body and floating PTFE diaphragm ensure reliable sealing and long service life. With a high Cv of 15, it’s well-suited for demanding thermal media control in industrial environments.
Technical Specifications
- Valve Type: Pilot Operated, Normally Open, 2-Way
- Pipe Size: 1 1/4″ NPT
- Flow Factor (Cv): 15
- 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, 480V
- DC: 6, 12, 24, 120, 240V
- Watt Rating:
- AC: 16.1 watts
- Coil Insulation Class: F
- Solenoid Enclosure
- Standard: RedHat II – Watertight, Types 1, 2, 3, 3S, 4, and 4X
- Optional: Explosionproof and Watertight, Types 3, 3S, 4, 4X, 6, 6P, 7, and 9
Key Features and Functionality
- High-Capacity Flow Design: Supports high-capacity thermal transfer applications.
- Dual-Media Operation: Built to handle both steam and hot water lines.
- PTFE Sealing System: Enhances durability in thermal applications.
- Threaded Bonnet Design: Allows for quick access to the upper section for servicing.
- Long Service Life: Ideal for continuous-duty industrial equipment.
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
- Boiler Systems: Controls pressurized thermal outlet or return lines.
- Food Plant Rinse Stations: Regulates steam-fed spray equipment.
- Autoclaves and Sterilizers: Manages hot media in sealed chambers.
- Facility Steam Grids: Enables flow to secondary process branches.
- Hot Water Utility Loops: Delivers reliable transfer through large pipes.
Compliance and Approvals
- UL Listed
- CSA Certified
- CE Compliant
Installation and Operational Notes
- Ensure the coil voltage matches the voltage of your power supply.
- Release all pressure from the system before installing or servicing.
- Add a fine strainer before the valve to catch debris.
- Line up pipes carefully to avoid twisting or bending the valve.
- Turn on the power and listen for a click to confirm it’s working.
Series Catalog
Asco Hot Water and Steam Valves Two Way
We ship these products worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance.