The Asco 8025B215 Solenoid Valve is a manually reset, pilot-operated unit with a Latched Closed, No Voltage Release construction. This model features a brass body and NBR diaphragm, suitable for general service fluids like air, inert gas, water, and light oil, designed for controlled restart and manual intervention after a trip event.
Technical Specifications
- Valve Type: Manual Reset, Special Service Pilot, Latched Closed
- Pipe Size: 1″ NPT
- Flow Factor (Cv): 13
- 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 Closed Position: Stays shut during coil energization.
- Power-Off Trip Action: Opens only when power is removed.
- Mid-High Flow Capacity: Handles larger lines with reliable shut-off.
- Manual Reset Requirement: Flow resumes only through operator action.
- Service-Proven Brass Build: Designed for rugged, general-purpose systems.
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
- Water Treatment Units: Opens flow path after power loss event.
- Compressed Air Lines: Remains closed until the valve de-energized.
- Light Oil Pumps: Allows discharge only during trip conditions.
- Control Panel Systems: Requires manual reset after voltage dropout.
- General Plant Utilities: Opens fluid path during loss-of-power events.
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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