The Asco 8025B208 Solenoid Valve is built for steam service in medium-capacity systems requiring controlled flow and power-sensitive shutoff. Its Latched Open, No Voltage Release operation keeps the valve open while energized and trips it closed when power is lost. The construction uses a steam-ready sealing assembly designed to handle elevated temperatures with repeatable reliability.
Technical Specifications
- Valve Type: Manual Reset, Special Service Pilot, Latched Open
- Pipe Size: 1″ NPT
- Flow Factor (Cv): 13.5
- Operating Pressure Differential:
- Steam: 5 to 125 psi
- Maximum Fluid Temperature:
- AC: 353°F (178°C)
- DC: 353°F (178°C)
- Body Material: Brass
- Seal Material: PTFE Disc with EPDM, FPM, and PTFE 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 Operation: The flow remains active while the coil is energized.
- Automatic Trip Closure: The valve shuts off when the voltage is interrupted.
- Steam-Resistant Design: Handles high heat and system pressure.
- Reset-Driven Safety: Requires manual reset before reopening.
- Mid-Capacity Service Fit: Built for moderate steam distribution 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
- Sterile Process Systems: Shuts down steam path on signal loss.
- Laundry Steam Controls: Trips shut during voltage drop events.
- Mid-Scale Boiler Outlets: Allows flow only when the system is energized.
- Cleanroom Steam Distribution: Requires reset before reactivation.
- Thermal Flow Regulation: Maintains isolation when de-energized.
Compliance and Approvals
- CSA Certified
- Meets shock and vibration per ISA S71.03C2
Installation and Operational Notes
- Mountable in any direction without restriction.
- A manual reset is required after valve closure.
- For use in clean, dry steam service only.
- Confirm compatibility with system temperature and pressure.
- Explosionproof models must follow sealed fitting requirements.
Series Catalog
Asco 8015/8025 Manual Reset Valves
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