The Asco EF8221G007 Solenoid Valve (EF8221G7) is an explosion-proof, pilot-operated valve engineered for precise water control in high-pressure, high-temperature applications. Its slow-closing feature reduces water hammer, protecting system components. This valve is perfect for boiler systems, cooling loops, and water treatment operations that require reliable shutoff and safety in hazardous environments.
For Standard Enclosure: Asco 8221G007 Solenoid Valve
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, PTFE
- Voltage Options:
- AC (60Hz): 24, 120, 240, 480 V
- AC (50Hz): 110, 220 V
- DC: 6, 12, 24, 120, 240 V
- Watt Rating:
- AC: 6.1 watts
- DC: 11.6 watts
- Coil Insulation Class: F
- Solenoid Enclosure:
- RedHat II (Explosionproof & Watertight, Types 3-9)
- RedHat (Explosionproof & Raintight, Types 3, 7, 9)
Key Features and Functionality
- Explosionproof Rated Construction: Safe for hazardous locations.
- Slow-Closing Snubber: Prevents damaging pressure surges.
- Pilot Operation: Efficient and reliable under fluctuating loads.
- Brass Valve Body: Durable, corrosion-resistant construction.
- Water-Specific Seals: NBR/PTFE design for media compatibility.
Compatible Components and Related Parts
- ASCO RedHat II Coil Series
- ASCO Mounting Brackets
- ASCO Seal Kit for 8221 Series
- ASCO Explosionproof Solenoid Enclosure
Industry Applications
- Boiler Feedwater Systems: Controls pressure with minimal hammer.
- Manufacturing Process Water: Used in closed-loop or batch systems.
- HVAC Circuit Loops: Regulates hot or chilled water flow.
- Power Plant Utilities: Provides a safe shutoff in the control panels.
- Surge-Sensitive Applications: Slows valve actuation to prevent damage.
Compliance and Approvals
- CSA Certified
- UL Listed (General Purpose Valves)
- CE Compliant (RedHat II series)
Installation and Operational Notes
- Always verify that the solenoid coil matches the power supply.
- Ensure all lines are depressurized and cleaned internally.
- Regularly inspect and clean valve internals for optimal service.
- Use ASCO-approved coils and accessories for replacement.
- Only qualified personnel should install or service this valve.
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance.