The Asco 8222G066 Solenoid Valve (8222G66) is a pilot-operated, normally closed brass valve built for compact steam systems. Its 1/2″ NPT connection and 2.5 Cv flow factor balance moderate flow with a space-saving design, while the 324°F steam rating enables use in medium-temperature sterilization and heating applications with low-pressure inlet conditions.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-Way
- Pipe Size: 1/2″ NPT
- Flow Factor (Cv): 2.5
- Operating Pressure Differential:
- Steam: 1 to 80 psi
- Maximum Fluid Temperature:
- AC (Steam): 324°F (162°C)
- Body Material: Brass
- Seal Material: TFE/P, EPDM, or PTFE
- Voltage Options:
- AC (60Hz): 24, 120, 208, 240, 480 V
- AC (50Hz): 110, 220, 240, 480 V
- DC: 12, 24, 48, 120 V
- Watt Rating:
- AC: 6.1 watts
- Coil Insulation Class: F
- Solenoid Enclosure:
- Standard: NEMA 4X, IP65 (Watertight, Corrosion-Resistant)
- Optional: Explosionproof & Watertight (Types 3-9), Raintight (Types 3, 7, 9)
Key Features and Functionality
- Compact Brass Construction: Withstands heat and corrosion in confined spaces.
- Opens at Low Pressure: Activates reliably from just 1 psi inlet.
- Moderate Temperature Handling: Rated for steam up to 324°F.
- Controlled Flow Delivery: 2.5 Cv enables steady, measured output.
- Reliable Valve Response: Ensures tight shutoff in small-bore lines.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Mounting Brackets
- ASCO Seal Kit for 8220/8222 Series
- ASCO Explosionproof Solenoid Enclosure
Industry Applications
- Sterilizers: Controls chamber steam during sterilization.
- Food Steamers: Regulates heat flow to cooking zones.
- Lab Heating Systems: Delivers thermal shutoff in test units.
- Commercial Dishwashers: Delivers steam for sanitation rinse stages.
- Small Molding Equipment: Feeds steam into heated mold tools.
Compliance and Approvals
- UL Listed
- CSA Certified
- CE Compliant
Installation and Operational Notes
- Verify valve model, voltage, pressure, and media compatibility before installation.
- Always depressurize the system and disconnect power before servicing.
- Mount the solenoid upright when possible to extend valve life.
- Use an inlet strainer or filter to prevent clogging and damage.
- Keep piping clean to prevent internal contamination.
Series Catalog
Asco Hot Water and Steam Valves Two-Way
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