The Asco 8025B207 Solenoid Valve is built for precise steam flow control in compact systems. Its specialized sealing configuration resists high temperatures and aggressive vapor, making it well-suited for demanding thermal applications. With a Latched Open, No Voltage Release design, it offers a secure trip-to-close operation for installations that require deliberate restart conditions.
Technical Specifications
- Valve Type: Manual Reset, Special Service Pilot, Latched Open
- Pipe Size: 3/4″ NPT
- Flow Factor (Cv): 7.8
- 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 Configuration: Remains open while the coil is energized.
- Trip-to-Close Design: Closes securely when power is lost.
- Steam-Ready Construction: Tolerates demanding heat and pressure cycles.
- Manual Reset Enforcement: Requires intervention before flow resumes.
- Reliable Shutoff Control: Designed for thermal equipment safety 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
- Sterilization Equipment: Cuts steam delivery during fault conditions.
- Laundry Presses: Trips shut to prevent steam oversupply.
- Commercial Boiler Panels: Maintain flow only during safe energization.
- Autoclave Controls: Opens when authorized, trips closed on loss.
- Thermal Safety Systems: Flow resumes only through manual reset.
Compliance and Approvals
- CSA Certified
- Meets shock and vibration per ISA S71.03C2
Installation and Operational Notes
- The valve can be mounted in any position.
- A reset is required following trip closure.
- Use only with clean, dry steam service.
- Confirm seal compatibility with application temperature.
- Explosionproof enclosures must be sealed per code.
Series Catalog
Asco 8015/8025 Manual Reset Valves
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