Description
The ASCO EFX8210G54-18822 is a 1-inch, normally closed (N/C) solenoid valve operating on 120V AC power, engineered for dependable on/off fluid control in demanding HVAC, plumbing, and industrial process applications. ASCO’s reputation for precision-engineered solenoid valves makes this model a trusted choice for contractors and facility engineers who require consistent, leak-free performance in their fluid control systems.
In the normally closed configuration, the valve remains shut when de-energized, providing a fail-safe shutoff that protects systems and equipment during power interruptions. When energized at 120V AC, the solenoid coil lifts the plunger to open the valve and allow flow — then snaps closed the moment power is removed.
Key Features
- 1-inch valve body for high-flow capacity in commercial and industrial pipelines
- Normally Closed (N/C) operation — fail-safe shutoff when de-energized
- 120V AC coil voltage for compatibility with standard control circuits
- ASCO EFX Series design for robust, long-cycle-life performance
- Suitable for use in HVAC, hydronic, refrigeration, and process piping systems
- Precision-machined valve body for consistent seating and minimal leakage
Typical Applications
- Chilled and hot water system shutoff
- Steam and condensate line control
- Refrigeration and cooling system fluid management
- Industrial process fluid on/off control
- Building automation and BAS-integrated valve control
Why Choose ASCO?
ASCO has been a global leader in solenoid valve technology for over a century. The EFX Series reflects ASCO’s commitment to durability, precision, and application versatility — making it a go-to solution for HVAC professionals and mechanical contractors who demand reliable performance installation after installation.







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