The Asco 8025B204 Solenoid Valve is a pilot-operated, manual reset unit designed for high-capacity flow in general service systems. With a No Voltage Release configuration, the valve remains latched open while energized and shuts when power is lost.
Technical Specifications
- Valve Type: Manual Reset, Special Service Pilot, Latched Open
- Pipe Size: 1 1/2″ NPT
- Flow Factor (Cv): 22.5
- Operating Pressure Differential:
- Air/Inert Gas: 5 to 125 psi
- Water: 5 to 125 psi
- Light Oil: 5 to 125 psi
- Maximum Fluid Temperature:
- AC: 180°F (82°C)
- DC: 180°F (82°C)
- Body Material: Brass
- Seal Material: NBR Diaphragm
- 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:
- Standard: RedHat metal solenoid enclosure, Type 1 General Purpose Junction Box
- Optional: Explosionproof and Watertight, Types 3, 7(C and D), and 9
Key Features and Functionality
- High-Flow Design: Suitable for large-volume fluid systems.
- Failsafe Shutoff: Closes automatically on voltage loss.
- Brass Body Durability: Brass resists corrosion in general service conditions.
- Manual Reset Operation: Requires reset after electrical trip.
- All-Position Mounting: Installs easily in any valve orientation.
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
- Bulk Fluid Transfer: Controls flow in large-scale distribution lines.
- Industrial Pumping Systems: It maintains process integrity upon power failure.
- Compressed Air Loops: It delivers a safe shutdown for large air networks.
- Oil Handling Equipment: Helps in managing light oil systems under trip conditions.
- Water Treatment Units: It ensures trip-reset reliability for safety-critical processes.
Compliance and Approvals
- CSA Certified
- Meets shock and vibration per ISA S71.03C2
Installation and Operational Notes
- Mount in any orientation without performance impact.
- A manual reset is required after tripping.
- Use compatible voltages and coil classes.
- Ensure valve matches fluid media and system pressure.
- Explosionproof versions require sealed conduit fittings.
Series Catalog
Asco 8015/8025 Manual Reset Valves
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