Description
ASCO 8221G13 2-Way Normally Closed Solenoid Valve Overview
The ASCO 8221G13 is a heavy-duty, pilot-operated solenoid valve engineered for dependable water flow control in demanding HVAC, commercial, and industrial applications. Featuring a 2-way, normally closed configuration, this valve remains closed when de-energized and opens upon receiving a 120VAC signal — providing a fail-safe shutoff that protects systems and equipment.
Key Features
- 2-Way Normally Closed (NC) configuration — valve closes automatically when de-energized
- 2″ NPT pipe connection for straightforward installation into standard piping systems
- 120VAC coil voltage for compatibility with common commercial and industrial control circuits
- High flow capacity with a 36 Cv flow coefficient — ideal for high-volume water applications
- Operating pressure range: 5–150 PSI, suitable for a wide variety of water systems
- Pilot-operated design for efficient actuation across the full pressure range
- Slow-closing action reduces water hammer and protects piping infrastructure
- Brass body construction for excellent corrosion resistance and long service life
- NBR (Buna-N) seals provide reliable performance with water media
- NEMA 4 enclosure rating — suitable for indoor and outdoor use, protected against splashing water and windblown rain
Specifications
- Brand: ASCO
- Model / SKU: 8221G13
- Valve Type: 2-Way Solenoid Valve
- Operation: Normally Closed (NC)
- Actuation: Pilot Operated, Slow Closing
- Pipe Size: 2″ NPT
- Coil Voltage: 120VAC
- Flow Coefficient (Cv): 36
- Pressure Range: 5–150 PSI
- Media: Water
- Body Material: Brass
- Seal Material: NBR (Nitrile Butadiene Rubber)
- Enclosure Rating: NEMA 4
Applications
- Commercial and industrial water supply shutoff
- HVAC hydronic systems and cooling tower water control
- Irrigation and water distribution systems
- Process water control in light industrial environments
- Boiler feed and makeup water applications
Why Choose the ASCO 8221G13?
ASCO is a globally recognized leader in fluid control solutions. The 8221G13 combines a robust brass body, NEMA 4-rated enclosure, and slow-closing pilot operation to deliver reliable, long-lasting performance in water control applications. The 36 Cv rating and 2″ NPT connection make it well-suited for high-flow commercial systems, while the NBR seals ensure compatibility with water media across the full 5–150 PSI operating range.
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