The Asco 8221G007 Solenoid Valve (8221G7) is a pilot-operated, normally closed solenoid valve designed for precise water control in industrial and HVAC applications. Its slow-closing mechanism with an integrated snubber minimizes water hammer, enhancing system protection. Ideal for use in boiler systems, manufacturing processes, and water treatment applications.
Technical Specifications
- Valve Type: Pilot Operated, Normally Closed, 2-way
- Pipe Size: 1” NPT
- Flow Factor (Cv): 11.5
- Operating Pressure Differential:
- Water: 5 to 150 psi (AC) / 5 to 125 psi (DC)
- Maximum Fluid Temperature:
- AC: 180°F (82°C)
- DC: 150°F (65°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: 6.1 watts
- DC: 11.6 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
- Pilot-Operated NC: Closes when de-energized, opens when energized.
- Slow-Closing Design: Integrated snubber minimizes water hammer.
- Suppressor-Free: Functions in water systems without extra devices.
- Durable Build: Corrosion-resistant brass body ensures longevity.
- Hot Water & Steam: Suitable for high-temperature applications.
Compatible Components and Related Parts
- Works with RedHat II solenoid coils.
- Compatible with standard water piping and control systems.
- Replacement parts are available for coil, seals, and disc components.
Industry Applications
- Industrial Water Control: Ensures reliable system regulation.
- HVAC Applications: Ideal for boilers and chiller systems.
- Manufacturing Processes: Provides dependable fluid management.
- Irrigation & Treatment: Supports efficient 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 position for optimal flexibility.
- Features standard electrical connections for seamless integration.
- Periodic inspection of seals and coils is recommended for optimal performance.
- Suitable for wet environments with high durability standards.
- Ensure proper voltage and pressure differentials for efficient operation.
We ship this product worldwide! Delivery is normally stock.
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