Asco 8320G702 Solenoid Valve

The Asco 8320G702 Solenoid Valve is a direct-acting, normally closed, 3-way NAMUR-mount valve designed for air and inert gas systems. Rated to operate at 100 psi across both AC and DC, it supports consistent actuator performance in moderate-pressure applications.

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: 100 psi (AC), 100 psi (DC)
• Maximum Fluid Temperature:
  • AC: 180°F (82°C)
  • DC: 120°F (49°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: 6.1/F
  • DC: 10.6/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

• NAMUR-Mount Interface: Directly mounts to spring-return actuators with NAMUR base.
• Balanced Pressure Ratings: Supports 100 psi for both AC and DC input.
• Direct-Acting Operation: Functions without pilot pressure for fast switching.
• Breather Block Protection: The built-in block prevents ingress of contaminants.
• Multi-Position Mounting: Installs in any orientation without performance loss.

Compatible Components and Related Parts

• ASCO RedHat II Coil Series
• ASCO Mounting Brackets
• ASCO Seal Kit for 8320 Series
• ASCO Explosionproof Solenoid Enclosure
• ASCO Rebuild Kit 318814
• ASCO Solenoid Valve 238210-032-D

Industry Applications

• Pneumatic Actuation: Triggers directional change in spring-return actuators.
• Process Instrumentation: Directs pilot air in valve manifolds.
• Environmental Systems: Controls actuators in HVAC and air handling units.
• Analytical Equipment: Routes control signals in automated diagnostics.
• Control Panels: Designed to fit into compact enclosures for pneumatic logic control.

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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