The Asco 8025B212 Solenoid Valve is engineered for corrosive fluid handling in systems that demand fail-safe shutoff and controlled restart. Its Latched Open, No Voltage Release design keeps the valve open during normal operation and closes it automatically when the coil is de-energized.
Technical Specifications
- Valve Type: Manual Reset, Special Service Pilot, Latched Open
- 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:
- 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 Behavior: Keeps line open while coil is powered.
- Automatic Trip Closure: The valve shuts down on power loss for safety.
- Corrosion-Resistant Construction: Stainless steel build for aggressive media.
- High Temperature Tolerance: Designed for elevated process conditions.
- Manual Reset Requirement: Prevents restart until operator confirmation.
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 Dosing Lines: Flow stops when system power is interrupted.
- Acid Transfer Systems: Trips closed to isolate corrosive fluid supply.
- High-Temperature Cleaning Rigs: Flow permitted only when energized.
- Solvent Circulation Loops: Resumes flow only after manual reset.
- Hazardous Fluid Outlets: It ensures shutoff during signal failure events.
Compliance and Approvals
- CSA Certified
- Meets shock and vibration per ISA S71.03C2
Installation and Operational Notes
- Install in any standard piping orientation.
- The valve must be reset manually after tripping.
- Ensure fluid compatibility with the body and seals.
- Match pressure/temperature range with application.
- Use sealed conduit fittings in explosionproof setups.
Series Catalog
Asco 8015/8025 Manual Reset Valves
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