The Asco 8221G025 Solenoid Valve (8221G25) is a reliable fluid control valve designed to maintain an open flow path until energized. It is well-suited for applications where consistent water movement is required with controlled shutoff capability. Engineered with a slow-closing feature, it effectively prevents system shocks and pressure fluctuations, ensuring stable performance in pipelines and automated systems.
Technical Specifications
- Valve Type: Pilot Operated, Normally Open, 2-way
- Pipe Size: ¾” NPT
- Flow Factor (Cv): 5.5
- Operating Pressure Differential:
- Water: 5 to 150 psi (AC)
- Maximum Fluid Temperature: 180°F (82°C)
- Body Material: Brass
- Seal Material: NBR (Nitrile Butadiene Rubber), PTFE
- Voltage Options:
- AC (60Hz): 24, 120, 240, 480V
- AC (50Hz): 110, 220V
- DC: 6, 12, 24, 120, 240V
- Watt Rating:
- AC: 16.1 watts
- Coil Insulation Class: F
- Solenoid Enclosure:
- Standard: RedHat II (Watertight, Types 1-4X); RedHat (Type I)
- Optional:
- RedHat II (Explosionproof & Watertight, Types 3-9)
- RedHat (Explosionproof & Raintight, Types 3, 7, 9)
Key Features and Functionality
- Open-Flow Design: Keeps liquid moving freely and closes only when activated.
- Controlled Valve Closure: Helps reduce water hammer and sudden pressure surges.
- Stable Flow Management: Provides consistent fluid movement for medium-flow applications.
- Heavy-Duty Materials: Brass body and stainless steel internals enhance durability.
- Low-Energy Pilot Operation: Maintains efficiency while ensuring precise actuation.
Compatible Components and Related Parts
- Interchangeable coils are available for hazardous and general environments.
- Installation kits designed for secure NPT pipe connections.
Industry Applications
- Continuous Flow Processing: Ensures steady water movement in treatment systems.
- HVAC & Cooling: Maintains circulation in industrial cooling loops.
- Fire Suppression: Reliable for emergency fluid control needs.
- Municipal & Agricultural Supply: Supports large-scale water distribution.
Compliance and Approvals
- CSA Certified
- UL Listed (General Purpose Valves)
- CE Compliant (RedHat II series)
Installation and Operational Notes
- Can be installed in any orientation for easy integration.
- Requires 5 psi minimum to open and remains open with 3 psi differential pressure.
- Ensure the correct voltage is specified for optimal operation.
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance.