The Asco 8220G099 Solenoid Valve (8220G99) is a pilot-operated, normally open valve designed for large-pipe steam and hot water service under high thermal stress. Featuring Class H coil insulation and a floating PTFE diaphragm, it delivers strong performance in demanding industrial systems while minimizing maintenance and supporting extended uptime.
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 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: H
- 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
- Heat-Resistant Coil: Class H coil built for high-temperature operation.
- Steam and Hot Water Use: Suitable for both steam and hot water media.
- Durable Seal Design: PTFE diaphragm resists wear from heat and pressure.
- Service-Friendly Bonnet: The threaded top allows for quick internal access.
- Continuous-Duty Ready: Performs reliably in demanding, long-use setups.
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
- Steam Loop Control: Routes flow in thermal distribution systems.
- Food Prep Equipment: Manages heating in industrial kitchens.
- Sterilizers and CIP Units: Provide consistent steam delivery.
- Boiler Heat Management: Controls heat output to process lines.
- Large Cleaning Systems: Regulates flow in rinse and drain stages.
Compliance and Approvals
- UL Listed
- CSA Certified
- CE Compliant
- Explosionproof and Watertight, Types 3, 7(C and D), and 9
Installation and Operational Notes
- Confirm the coil voltage matches your power source.
- Depressurize the system before installation or maintenance.
- Install a fine-mesh strainer before the valve inlet.
- Align piping carefully to avoid strain on the valve.
- Turn on the power and listen for a click to confirm operation.
Series Catalog
Asco Hot Water and Steam Valves Two Way
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