Asco 8222G070 Solenoid Valve 8222G70
Asco 8222G070 Solenoid Valve 8222G70

The Asco 8222G070 Solenoid Valve (8222G70) ensures consistent steam control in compact systems requiring high heat tolerance and low-pressure activation. This pilot-operated brass valve handles temperatures up to 353°F and opens at just 1 psi inlet pressure, making it ideal for autoclaves, compact steamers, and thermal sterilization.

Technical Specifications

  • Valve Type: Pilot Operated, Normally Closed, 2-Way
  • Pipe Size: 1/4″ NPT
  • Flow Factor (Cv): 1.2
  • 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

  • Brass Body Construction: Durable for high-temp, corrosive environments.
  • Low Pressure Operation: Opens with an inlet pressure as low as one psi.
  • High Temperature Rated: Capable of handling steam temperatures up to 353°F.
  • Compact Flow Design: Optimized for precision in tight systems.
  • Precision Steam Shutoff: Ensures clean, responsive valve closure.

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.
  • Autoclaves: Open 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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