Asco 8320G704 Solenoid Valve

The Asco 8320G704 Solenoid Valve is a direct-acting, normally closed, 3-way NAMUR-mount valve built for air and inert gas control. Its 22.6-watt Class F DC coil provides exceptional power for demanding applications requiring high actuation force.

Technical Specifications

• Valve Type: Direct Acting, Normally Closed, 3-Way NAMUR Mount
• Pipe Size: 1/4″ NPT
• Flow Factor (Cv): 0.12
• Operating Pressure Differential:
  • Air/Inert Gas: 150 psi (AC), 150 psi (DC)
• Maximum Fluid Temperature:
  • AC: 200°F (93°C)
  • DC: 150°F (66°C)
• Body Material: Brass
• Seal and Disc Material: NBR
• Voltage Options:
  • AC: 24, 120, 240, 480 V (60 Hz); 110, 220 V (50 Hz)
  • DC: 6, 12, 24, 120, 240 V
• Watt Rating:
  • AC: 10.1/F
  • DC: 22.6/F
• Solenoid Enclosure:
  • Standard: Watertight, Types 1, 2, 3, 3S, 4, 4X
  • Optional: Explosionproof & Watertight, Types 3, 3S, 4, 4X, 6, 6P, 7, 9

Key Features and Functionality

• High-Power DC Coil: Equipped with a 22.6-watt Class F coil for strong actuation.
• Wide Temperature Range: Handles up to 200°F in AC operation.
• NAMUR-Mount Interface: Mounts to spring-return actuators with standard layout.
• Integral Breather Block: Blocks the ingress of corrosives or particulates.
• Direct-Acting Control: Opens and closes without pilot pressure.

Compatible Components and Related Parts

• ASCO RedHat II Coil Series
• ASCO Mounting Brackets
• ASCO Seal Kit for 8320 Series
• ASCO Explosionproof Solenoid Enclosure
• ASCO Rebuilt Kit 318818
• ASCO Replacement Coil 238610-032-D

Industry Applications

• Pneumatic Actuation: Drives high-torque spring-return valve actuators.
• Process Instrumentation: Controls pilot air in elevated-load conditions.
• Environmental Systems: Manages heated air lines in the plant’s HVAC system.
• Analytical Equipment: Switches pressure inputs in thermal diagnostics.
• Control Panels: Installs in pilot panels requiring high coil power.

Compliance and Approvals

• UL Listed
• CSA Certified

Installation and Operational Notes

• Make sure the supply voltage matches the nameplate.
• Install with the coil upright for best performance.
• Flush all piping before connecting the valve.
• Ground the coil properly to avoid electrical faults.
• Don’t exceed the valve’s pressure or temperature ratings.

Series Catalog

Asco 8320 NAMUR Mount

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