The Asco EF8025B209 Solenoid Valve is designed for steam regulation in medium to large process lines that are exposed to hazardous conditions. The “Latched Open, No Voltage Release” design keeps the valve open while powered and closes automatically when power is lost.
For Standard Enclosure: Asco 8025B209 Solenoid Valve
Technical Specifications
- Valve Type: Manual Reset, Special Service Pilot, Latched Open
- Pipe Size: 1 1/4″
- Flow Factor (Cv): 15
- 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 Configuration: Rated for Class I, Division 1 steam environments.
- 1 1/4″ NPT Porting: Accommodates larger line sizes for steam throughput.
- Cv 15 Flow Performance: Suitable for medium-to-large capacity control.
- Thermal-Grade Seal Assembly: PTFE disc with EPDM and FPM handles steam up to 353°F (178°C).
- Trip-to-Close Safety Logic: Automatically shuts on power loss; manual reset required.
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 Supply Headers: Prevents backflow or overrun during power outage.
- Thermal Distribution Systems: Reliable valve closure under emergency stop.
- Process Heat Control Loops: Maintain safety in steam-intensive operations.
- Steam Purge or Relief Lines: Ensures shutdown before restart is allowed.
- Autoclave and Sterilizer Units: Safely isolate high-temp systems on fault.
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
- Explosionproof conduit fittings must be used for classified areas.
- Can be installed in any orientation appropriate to flow direction.
- A manual reset is required after each power loss or trip event.
- Confirm the coil voltage and class before energizing the unit.
- Designed specifically for saturated steam media up to 353°F.
Series Catalog
Asco 8015/8025 Manual Reset Valves
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