The Asco 8222G047 Solenoid Valve (8222G47) is a pilot-operated, normally closed steam valve with a 1/2″ NPT port and a 3.6 Cv rating. It opens at 2 psi and handles up to 353°F, making it suitable for mid-range thermal control in sterilizers, steam appliances, and heat-based processing equipment.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-Way
- Pipe Size: 1/2″ NPT
- Flow Factor (Cv): 3.6
- Operating Pressure Differential:
- Steam: 2 to 125 psi
- Maximum Fluid Temperature:
- AC (Steam): 353°F (178°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: H
- Solenoid Enclosure:
- Standard: NEMA 4X, IP65 (Watertight, Corrosion-Resistant)
- Optional: Explosionproof & Watertight (Types 3-9), Raintight (Types 3, 7, 9)
Key Features and Functionality
- Brass Valve Body: Compact and corrosion-resistant for steam service.
- Moderate Flow Capacity: 3.6 Cv enables controlled thermal delivery.
- Steam Rated to 353°F: Handles elevated temperatures in process systems.
- Opens at 2 psi: Functions with light system pressure conditions.
- Reliable Shutoff Action: Prevents unwanted flow in closed circuits.
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: Regulates steam flow into disinfection chambers.
- Laundry Equipment: Opens steam to presses and ironers.
- Steam Atomizers: Controls injection steam for spray systems.
- Food Processing Lines: Supplies heat to blanchers and cookers.
- Autoclaves: The valve can deliver high-temp flow for sealed cycles.
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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