The Asco 8220G077 Solenoid Valve (8220G77) is a pilot-operated, normally open valve designed to support high-volume steam and hot water flow in large pipe installations. The floating PTFE diaphragm ensures a long service life, while the 13.5 Cv rating meets the high-capacity demands of industrial foodservice, sterilization systems, and boiler feed applications.
Technical Specifications
- Valve Type: Pilot Operated, Normally Open, 2-Way
- Pipe Size: 1″ NPT
- Flow Factor (Cv): 13.5
- 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 Flow Rate: The 13.5 Cv enables efficient transfer of large volumes.
- Extended Life Diaphragm: The PTFE diaphragm can withstand long-term cycling.
- Steam and Hot Water Rated: Ideal for dual-media installations.
- Service-Friendly Bonnet: Threaded top simplifies internal access.
- Energy-Efficient Design: Optimized for 5 psi differential applications.
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: Regulates mainline thermal flow or discharge.
- Sterilization Units: Supplies pressurized steam to chamber systems.
- Food Processing Plants: Controls high-temp utility water or vapor.
- Rinse and Spray Systems: Delivers flow in timed thermal cleaning.
- Laundry and Textile Systems: Maintains heated fluid to process zones.
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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