The Asco EF8025B208 Solenoid Valve is a pilot-operated, explosionproof unit optimized for steam service in medium-capacity environments. Built with a 1″ NPT port and high-temp PTFE disc seals, it provides dependable shut-off in power-sensitive thermal applications.
For Standard Enclosure: Asco 8025B208 Solenoid Valve
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:
- Explosionproof and Watertight, Types 3, 7(C and D), and 9
Key Features and Functionality
- Explosionproof Construction: Engineered for Class I, Div. 1 hazardous steam zones.
- Mid-Range Flow Design: 13.5 Cv rating supports medium-volume steam systems.
- Latched Open Steam Control: Valve remains open when energized, shuts on power loss.
- Thermal-Resistant Seal Stack: PTFE disc with EPDM and FPM handles sustained 353°F steam.
- 1″ NPT Port Size: Suitable for piping layouts with moderate capacity and backpressure.
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
- Autoclave Steam Feed: Trips closed under system failure or power interruption.
- Boiler Loop Distribution: Maintains thermal control at medium flow levels.
- Steam Conditioning Units: Protects against overrun with forced closure.
- Processing Line Heat Injection: Enables deliberate recovery after shutdown.
- Controlled Humidification Skids: It handles vapor flow where safety interlocks are required.
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 seals per electrical code.
- Mounting orientation is flexible unless restricted by system design.
- The reset must be manually triggered after the trip event.
- Confirm voltage and wattage match before energizing.
- Suitable for steam media only; not intended for liquids or gas.
Series Catalog
Asco 8015/8025 Manual Reset Valves
We ship these products worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance.