The Asco 8025B205 Solenoid Valve is a manually reset, pilot-operated valve designed for high-capacity flow in air, inert gas, water, and light oil service. With a No Voltage Release design, it latches open when energized and closes when the solenoid is de-energized.
Technical Specifications
- Valve Type: Manual Reset, Special Service Pilot, Latched Open
- Pipe Size: 2″ NPT
- Flow Factor (Cv): 43
- 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
- Latched Open Control: The valve stays open while the coil is energized.
- No Voltage Release: The valve trips close when the coil loses power.
- High Flow Capacity: Supports large fluid volumes under pressure.
- Brass Body Durability: Rugged construction for demanding applications.
- Flexible Mounting Options: Installs in any piping 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
- Main Line Isolation: Shuts flow in high-volume fluid pipelines.
- Compressor Safety Systems: Stops air output during power interruption.
- Water Supply Control: Closes line to halt unmonitored flow.
- Light Oil Transfer: Interrupts fluid movement after trip event.
- Plant Utility Networks: Requires reset before flow can resume.
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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