The Asco EF8025B210 Solenoid Valve is built to handle high-volume steam flow in larger pipeline systems exposed to hazardous conditions. It features a Latched Open, No Voltage Release configuration that holds the valve open during operation and trips it closed when power is removed. Designed for elevated temperature environments, it offers reliable isolation performance and manual reset control for critical safety loops.
For Standard Enclosure: Asco 8025B210 Solenoid Valve
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:
- Explosionproof and Watertight, Types 3, 7(C and D), and 9
Key Features and Functionality
- Explosionproof Enclosure: Suitable for use in classified steam service areas.
- No Voltage Release Safety: Closes automatically when power is cut, requiring manual reset.
- Steam-Ready Construction: Sealing components designed for aggressive vapor environments.
- Built for Higher Flow Systems: Supports demanding pipelines with reliable trip shutoff.
- Manual Reset Mechanism: Prevents unintentional system 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 Main Isolation: Controlled shutdown during power failure.
- Thermal Loop Control: Reliable protection in high-energy steam networks.
- Boiler Distribution Systems: Ensures safety interlock before restart.
- Industrial Heating Processes: Handles harsh vapor and temperature loads.
- Power-Off Shutdown Circuits: Enforces restart control after trip conditions.
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
- Install with explosionproof conduit fittings in classified zones.
- It may be mounted in any system-aligned orientation.
- Requires manual reset following power loss or shutdown trip.
- Ensure coil voltage and insulation class are properly matched.
- Designed for saturated steam service in pressure-regulated systems.
Series Catalog
Asco 8015/8025 Manual Reset Valves
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