Asco EF8320G174 Solenoid Valve 1/4″ 3 Way

1. General Overview

• Manufacturer: ASCO (Emerson)

• Model: EF8320G174

• Series: 8320 / EF8320 (Explosion-Proof General Service)

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

• Port Size: 1/4″ NPT female

• Function: Controls the flow of air, inert gases, water, or light oil in automation and process systems

• Typical Applications: Pneumatic control, pilot valve service, air handling, water control, and general industrial automation

2. Key Features

• Direct-acting operation — requires no minimum pressure for activation

• Compact, durable brass body design

• Explosion-proof coil suitable for hazardous environments

• Fast, reliable switching for precise control

• Mountable in any position without affecting performance

• Suitable for a wide range of general service fluids

3. Technical Specifications

• Valve Type: 3-way, 2-position

• Operation: Normally closed (standard)

• Port Size: 1/4″ NPT

• Orifice Size: Approximately 3/32″ (2.4 mm)

• Flow Coefficient (Cv): 0.12

• Pressure Range: 5 to 150 psi (air/inert gas); 5 to 100 psi (water/light oil)

• Media: Air, inert gas, water, light oil

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

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

• Wattage: Approx. 17 W (AC coil version)

4. Construction Materials

• Body: Brass

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

• Internal Parts: Stainless steel and corrosion-resistant alloys

• Coil Housing: Explosion-proof, encapsulated RedHat II design

5. Electrical Details

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

• Enclosure Rating: NEMA 4, 7, and 9 (varies by configuration)

• Duty Cycle: Continuous

• Connection: Conduit hub or lead wires