The Asco EF8025B225 Solenoid Valve is an explosionproof valve built for reliable shutoff in corrosive fluid systems. Operating in a Latched Closed, No Voltage Release configuration, it stays sealed under power and opens only when de-energized.
For Standard Enclosure: Asco 8025B225 Solenoid Valve
Technical Specifications
- Valve Type: Manual Reset, Special Service Pilot, Latched Closed
- Pipe Size: 3/4″ NPT
- Flow Factor (Cv): 7.8
- Operating Pressure Differential:
- Air/Inert Gas: 5 to 250 psi
- Water: 5 to 250 psi
- Light Oil: 5 to 250 psi
- Maximum Fluid Temperature:
- AC: 350°F (177°C)
- DC: 350°F (177°C)
- Body Material: Stainless Steel
- Seal Material: PTFE Disc with FPM Seals
- Voltage Options:
- AC (60Hz): 24, 120, 240, 480V
- DC: 6, 12, 24, 120, 240V
- Watt Rating:
- AC: 20 watts
- DC: 36.2 watts
- Coil Insulation Class: F (AC), H (DC)
- Solenoid Enclosure:
- Explosionproof and Watertight, Types 3, 7(C and D), and 9
Key Features and Functionality
- Explosionproof Certified for Harsh Zones: Rated for use in hazardous, corrosive areas.
- Voltage-Off Trip to Open: The valve opens automatically when power is removed.
- Manual Reset Mechanism: Ensures reactivation is deliberate and verified.
- Mid-Range Flow Handling: Suitable for 3/4″ lines with elevated Cv.
- Full Stainless Steel Construction: Provides long-term resistance in aggressive fluid circuits.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Manual Reset Lever Kits
- ASCO Seal Kit for 8025 Series
- ASCO Explosionproof Solenoid Enclosure
Industry Applications
- Chemical Transfer Panels: Trips open on power loss to relieve pressure.
- Medium-Volume Pump Loops: Integrates into shutdown-triggered discharge paths.
- Corrosive Blending Systems: Withstand repeated exposure to reactive agents.
- Additive Feed Lines: Opens with loss of control signal to prevent buildup.
- Solvent Supply Networks: Enable safe fluid release post-trip.
Compliance and Approvals
- UL Listed
- CSA Certified
- CE Compliant
- Explosionproof and Watertight, Types 3, 3S, 4, 4X, 6, 6P, 7, and 9
- Explosionproof and Raintight, Types 3, 7, and 9
Installation and Operational Notes
- It can be mounted in any position.
- Reset must be performed after each trip event.
- Use explosionproof fittings and conduit per code.
- Confirm the voltage and coil insulation class before energizing.
- Compatible with air, inert gas, water, and light oil.
- Works with air, inert gas, water, and light oil.
Series Catalog
Asco 8015/8025 Manual Reset Valves
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