
The Asco 8015B204 Solenoid Valve is built for large-volume flow control in moderate-pressure systems where safety demands manual intervention after shutdown. Designed to close only when electrically tripped, this latched-open valve is well-suited for water, inert gas, and oil applications requiring deliberate flow interruption in utility or industrial service lines.
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
- Air/Inert Gas: 5 to 125 psi (AC), 5 to 125 psi (DC)
- Water: 5 to 125 psi (AC), 5 to 125 psi (DC)
- Light Oil: 5 to 125 psi (AC), 5 to 125 psi (DC)
- Maximum Fluid Temperature
- AC: 180°F (82°C)
- DC: 180°F (82°C)
- Body Material: Brass
- Seal Material: NBR
- Voltage Options
- AC (60Hz): 24, 120, 240, 480V
- AC (50Hz): 110, 220V
- 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: NEMA 1 (General Purpose)
- Optional: Explosionproof & Watertight (Types 3, 7(C&D), 9)
Key Features and Functionality
- Electrically Tripped Mechanism: Closes valve when solenoid circuit energizes.
- Latched Open Design: Stays open until a deliberate shutdown is triggered.
- Manual Reset Requirement: The Operator must restore flow manually after the trip.
- Large Flow Capacity: Supports high-volume transfer with minimal restriction.
- Compatible Fluid Handling: Designed for water, air, and light oil use.
Industry Applications
- Water Supply Systems: Used to interrupt main service lines.
- Air Distribution Headers: Isolates zones during fault or service.
- Process Heating Skids: Trip control in oil circulation loops.
- General Utility Feeders: Safety lockout for facility-wide piping.
- Industrial Equipment Startups: Ensures manual approval before activation.
Installation and Operational Notes
- Install it upright with the coil accessible from above.
- The reset lever must remain free of obstructions.
- Use rated voltage to avoid coil overheating.
- Check the body arrow for the correct flow direction.
- Only operate with specified fluid media types.
Series Catalog
Asco 8015/8025 Manual Reset Valves
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