The Asco 8222G094 Solenoid Valve (8222G94) is a pilot-operated, normally closed valve built for low-pressure steam service in compact process lines. With a 1/2″ NPT connection and 4.0 Cv flow, it supports moderate flow rates and opens from 0 psi inlet. Rated to 300°F, this brass valve is suited for light-duty heating and sterilization systems.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-Way
- Pipe Size: 1/2″ NPT
- Flow Factor (Cv): 4.0
- Operating Pressure Differential:
- Steam: 0 to 50 psi
- Maximum Fluid Temperature:
- AC (Steam): 300°F (149°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: 10.1 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
- Zero Minimum Pressure: Operates without an inlet pressure supply.
- Brass Valve Body: Withstands heat in compact installations.
- Rated to 300°F: Suitable for mid-range steam applications.
- Controlled 4.0 Cv Flow: Balanced capacity for small thermal loads.
- Pilot-Assisted Design: Ensures stable response in low-pressure systems.
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
- HVAC Humidifiers: Feeds steam mist into air ducts.
- Steam Cleaning Systems: Activates low-pressure spray nozzles.
- Sterilizers: Opens steam to heat treatment chambers.
- Laundry Presses: Regulates steam in finishing equipment.
- Compact Boilers: Delivers steam to secondary circuits.
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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