Description
ASCO 8222G2 2-Way Normally Closed Solenoid Valve Overview
The ASCO 8222G2 is a heavy-duty, pilot-operated solenoid valve engineered for demanding steam and fluid control applications. Featuring a 2-way, normally closed configuration, this valve remains closed when de-energized and opens upon receiving a 120VAC signal — providing reliable, fail-safe operation in commercial and industrial HVAC, process, and steam systems.
Key Features
- 2-Way, Normally Closed (N/C) operation for fail-safe fluid shutoff
- Pilot-operated design for efficient actuation across the full pressure range
- 1/2″ NPT port connections for straightforward inline installation
- 120VAC coil voltage for compatibility with standard control circuits
- Flow coefficient (Cv) of 4 for reliable flow capacity in steam and compatible media
- Operating pressure range: 0–125 PSI
- Rated for steam service — ideal for steam heating and process control systems
- Brass body construction for corrosion resistance and long service life
- Teflon seals for superior chemical resistance and high-temperature performance
- NEMA 4X enclosure rating — suitable for indoor and outdoor use, including washdown and corrosive environments
Application Suitability
The ASCO 8222G2 is well-suited for steam control in HVAC heating systems, boiler feed and distribution lines, industrial process piping, and other applications requiring precise on/off fluid control. The NEMA 4X enclosure makes it an excellent choice for installations exposed to moisture, dust, or corrosive atmospheres.
Technical Specifications
- SKU: 8222G2
- Brand: ASCO
- Valve Type: Solenoid Valve, 2-Way, Normally Closed
- Operation: Pilot Operated
- Port Size: 1/2″ NPT
- Coil Voltage: 120VAC
- Flow Coefficient (Cv): 4
- Pressure Range: 0–125 PSI
- Media: Steam
- Body Material: Brass
- Seal Material: Teflon (PTFE)
- Enclosure Rating: NEMA 4X
Why Choose ASCO?
ASCO is a globally recognized leader in solenoid valve technology, trusted by HVAC professionals, mechanical contractors, and industrial engineers for consistent performance, long service life, and broad application compatibility. The 8222G2 continues that tradition with robust materials and a design built to handle the rigors of steam service.







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