The Asco 8025B210 Solenoid Valve is designed to control steam in larger pipeline systems where high flow capacity and secure shut-off are required. The Latched Open, No Voltage Release configuration keeps the valve open while powered and closes when voltage is lost. This valve is ideal for high-temperature applications requiring manual reset and reliable performance under pressure.
Technical Specifications
- Valve Type: Manual Reset, Special Service Pilot, Latched Open
- Pipe Size: 1 1/2″ NPT
- Flow Factor (Cv): 22.5
- 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 Mode: The flow is sustained while the coil remains powered.
- Trip Closes on Power Loss: The valve closes automatically when voltage is removed.
- Steam-Capable Construction: Materials selected for high-heat reliability.
- High Flow Suitability: Supports elevated capacity thermal systems.
- Manual Reset Mechanism: The operator must restore the system after a trip.
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 Steam Headers: Shuts down high-volume flow on trip.
- Boiler Output Controls: Trips closed when control signal is interrupted.
- Plant Steam Systems: Opens while energized, stays closed after power loss.
- Industrial Autoclaves: Resumes flow only after manual reset.
- High-Pressure Steam Circuits: It maintains a safety shutoff during outages.
Compliance and Approvals
- CSA Certified
- Meets shock and vibration per ISA S71.03C2
Installation and Operational Notes
- It can be mounted in any valve orientation.
- A manual reset is required following each trip.
- Designed specifically for clean steam media only.
- Confirm temperature and pressure compatibility with application.
- Explosionproof units require conduit sealing per code.
Series Catalog
Asco 8015/8025 Manual Reset Valves
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