The Asco EF8025B207 Solenoid Valve is engineered for steam control in hazardous environments. Its No Voltage Release design allows it to latch open when energized and securely close during a power loss. It is made with a brass body and a high-temperature PTFE disc.
For Standard Enclosure: Asco 8025B207 Solenoid Valve
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:
- Explosionproof and Watertight, Types 3, 7(C and D), and 9
Key Features and Functionality
- Explosionproof Enclosure: Certified for hazardous steam applications.
- High-Temperature Capability: It can withstand up to 353°F (178°C) fluid temperatures.
- Steam-Specific Sealing: PTFE disc with EPDM and FPM handles aggressive vapor.
- Compact System Fit: The 3/4″ NPT pipe size with Cv 7.8 is ideal for tight layouts.
- Manual Reset Safeguard: No Voltage Release latching ensures a deliberate restart after shutdown.
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
- Steam Sterilization Units: Controlled shutdown when power fails.
- Thermal Processing Lines: Maintains system integrity under high temps.
- Compact Boiler Skids: Prevents automatic restart after trip events.
- Industrial Heating Systems: Ensures tight shutoff under fault conditions.
- Evaporator Control Circuits: Supports high-temp steam flow regulation.
Compliance and Approvals
- UL Listed
- CSA Certified
- CE Compliant
- Explosionproof and Watertight, Types 3, 3S, 4, 4X, 6, 6P, 7, and 9
- Explosionproof and Raintight, Types 3, 7, and 9
Installation and Operational Notes
- Use explosionproof conduit fittings as required by code.
- The valve may be mounted in any orientation.
- A manual reset is required after each power-off trip.
- Confirm compatibility with high-temp steam and voltage class.
- Suitable only for steam service — not for air, oil, or water.
Series Catalog
Asco 8015/8025 Manual Reset Valves
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