The Asco 8222G074 Solenoid Valve (8222G74) is a pilot-operated, normally closed brass valve designed explicitly for low-flow steam applications. It offers precise control for small piping systems for temperatures up to 353°F, suitable for demanding applications such as sterilizers and process heating.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-Way
- Pipe Size: 3/8″ NPT
- Flow Factor (Cv): 2.5
- Operating Pressure Differential:
- Steam: 1 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: 6.1 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
- Pilot-Operated Design: Supports consistent valve actuation under load.
- Brass Body Construction: Durable and corrosion-resistant in steam systems.
- Low Pressure Activation: Opens with inlet pressure as low as 1 psi.
- Steam Rated to 353°F: Handles extreme thermal environments reliably.
- Precision Steam Shutoff: Maintains clean flow control in compact 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: Control steam in the chamber during sterilization.
- Food steamers: Regulate heat flow to the cooking zones.
- Lab heating systems: Provide thermal shutoff in lab test units.
- Autoclaves: Initiate steam flow for pressurized cycles.
- 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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