Asco EF8317G307 Solenoid Valve 1/4″

1. General Overview

• Manufacturer: ASCO (Emerson)

• Model: EF8317G307

• Series: 8317 / EF8317 (Explosion-Proof General Service Series)

• Type: 3-way, 2-position solenoid valve

• Function: Directs and controls air or inert gas flow in pneumatic systems

• Typical Applications: Industrial automation, air-operated equipment, pneumatic actuators, control panels, and machinery requiring quick exhaust operation

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2. Key Features

• Compact 1/4″ NPT valve designed for high performance and reliability

• Explosion-proof coil for hazardous locations (EF = Explosionproof Fluidpower)

• Brass body for corrosion resistance and long service life

• Operates with no minimum pressure differential

• Fast response for precise control of air and inert gas circuits

• Mountable in any position for flexible installation

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3. Technical Specifications

• Valve Function: 3-way (3 ports, 2 positions) – normally closed type

• Port Size: 1/4″ NPT female

• Orifice Size: Approximately 3/32″ (typical for this model)

• Flow Coefficient (Cv): Around 0.5

• Operating Pressure Range: 5 to 150 psi (air or inert gas)

• Media: Air, inert gases (dry, filtered)

• Temperature Range: -20°C to +80°C (-4°F to +176°F)

• Voltage Options: 24VDC, 120VAC, or 240VAC (depending on coil configuration)

• Duty Cycle: Continuous

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4. Construction Materials

• Body: Brass

• Seals: NBR (Buna-N) or Viton (depending on configuration)

• Internal Components: Stainless steel and corrosion-resistant alloys

• Coil Housing: Encapsulated explosion-proof enclosure

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5. Electrical Details

• Coil Type: EF-series explosion-proof RedHat solenoid

• Enclosure Rating: NEMA 4, 7, and 9 (depending on configuration)

• Power Consumption: Low wattage for continuous duty operation

• Connection Type: Conduit hub or lead wires

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6. Mounting & Connections

• Inline mounting with threaded ports

• Can be installed in any position without affecting performance

• Compatible with standard pneumatic fittings and accessories

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7. Compliance & Certifications

• UL Listed and CSA Certified for hazardous locations

• CE compliant

• Meets industrial standards for pneumatic and explosion-proof operation