The Asco 8025B216 Solenoid Valve is a manually reset, pilot-operated valve engineered with a Latched Closed, No Voltage Release configuration. The valve remains shut while the coil is energized and trips open only when power is removed. Constructed with a brass body and NBR diaphragm, this model is suitable for medium-capacity pipelines with fail-open functionality.
Technical Specifications
- Valve Type: Manual Reset, Special Service Pilot, Latched Closed
- Pipe Size: 1 1/4″ NPT
- Flow Factor (Cv): 15
- 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 Mechanism: Remains shut while coil is energized.
- Power-Loss Activation: Automatically opens when electrical power is interrupted.
- Mid-Capacity Line Fit: Ideal for standard-sized fluid pipelines.
- Secure Manual Reset: Must be manually reset to restore flow.
- Durable Brass Build: Engineered for reliable use in demanding environments.
Compatible Components and Related Parts
- ASCO RedHat II Series Coils
- ASCO Reset Lever Accessory Kits
- ASCO 8025 Series Seal Replacement Kit
- ASCO Explosionproof Solenoid Housing
Industry Applications
- Water Supply Systems: Keeps flow shut during operation, opens only if power is lost.
- Compressed Air Equipment: Prevents unintended flow unless circuit power drops.
- Oil Circulation Loops: Ensures fluid opens only under fail-safe trip.
- Machine Control Panels: Disables line until manual reset is performed.
- Facility Interlock Systems: Opens flow path only after control signal failure.
Compliance and Approvals
- CSA Certified
- Tested for shock and vibration per ISA S71.03C2 standards
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
We ship these products worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance.