The Asco 8220G105 Solenoid Valve (8220G105) is a pilot-operated, normally open valve designed to handle demanding steam and hot water service in extra-large pipe installations. This valve features a floating PTFE diaphragm and high-temperature Class F coil insulation, ideal for high-capacity thermal systems that require stable flow and long operational life.
Technical Specifications
- Valve Type: Pilot Operated, Normally Open, 2-Way
- Pipe Size: 2 1/2″ NPT
- Flow Factor (Cv): 45
- Operating Pressure Differential
- Steam: 5 to 125 psi
- Hot Water: 5 to 150 psi
- Maximum Fluid Temperature
- Steam: 353°F (178°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 Capacity: Supports large-diameter piping and thermal systems.
- Class H Coil: Insulated for continuous high-temperature performance.
- PTFE Diaphragm Assembly: Resists wear from steam and heat cycling.
- Steam/Water Rated: Suitable for both hot water and saturated steam.
- Threaded Bonnet Access: Allows quick disassembly for maintenance.
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 Skid Control: Regulates secondary steam line output.
- Thermal Loop Systems: Maintains flow in long-distance circuits.
- CIP Line Service: Delivers pressure to sanitation equipment.
- Autoclave Feed Supply: Controls the flow of media to batch vessels.
- Process Fluid Routing: Operates in rinse, flush, and prep stages.
Compliance and Approvals
- UL Listed
- CSA Certified
- CE Compliant
Installation and Operational Notes
- Ensure the solenoid coil matches the system voltage before energizing.
- Depressurize all connected lines before installation or maintenance.
- Place a fine-mesh strainer as close to the inlet as possible.
- Align piping carefully to prevent stress or torque on the valve body.
- After the electrical connection, energize the coil and verify operation.
Series Catalog
Asco Hot Water and Steam Valves Two Way
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