Description
The ASCO 8214290CSA is a heavy-duty, 2-way normally closed solenoid shutoff valve engineered for reliable fuel gas control in commercial and industrial HVAC applications. With a massive 104 Cv flow coefficient and a rated capacity of 5,607,800 BTU/hr, this valve is built to handle high-demand fuel gas systems with confidence. Its 2-1/2″ connection accommodates both NPT threaded and flange-style installations, offering flexible integration into a wide range of piping configurations.
The normally closed design ensures the valve defaults to a safe, closed position upon loss of power — a critical safety feature for fuel gas shutoff applications. Powered by a 120VAC coil, it fits seamlessly into standard commercial electrical systems. The aluminum body keeps weight manageable without sacrificing durability, while NBR (Buna-N) seals provide excellent resistance to natural gas, propane, and other common fuel gases. The NEMA 1 enclosure protects the solenoid operator in standard indoor environments.
Key Features
- 2-way, normally closed operation for fail-safe fuel gas shutoff
- 2-1/2″ connection — compatible with NPT threaded or flange piping
- 120VAC coil voltage for standard commercial power compatibility
- High flow capacity: 104 Cv flow coefficient
- Rated capacity: 5,607,800 BTU/hr
- Operating pressure range: 0–5 PSI
- Aluminum body construction for a durable, lightweight design
- NBR (Buna-N) seals for compatibility with natural gas and propane
- NEMA 1 enclosure for indoor installation protection
Specifications
- SKU: 8214290CSA
- Brand: ASCO
- Valve Type: 2-Way Solenoid, Normally Closed
- Connection Size: 2-1/2″
- Connection Type: NPT or Flange
- Coil Voltage: 120VAC
- Cv (Flow Coefficient): 104
- Capacity: 5,607,800 BTU/hr
- Pressure Range: 0–5 PSI
- Body Material: Aluminum
- Seal Material: NBR (Buna-N)
- Enclosure Rating: NEMA 1
- Media: Fuel Gas
Applications
- Commercial and industrial fuel gas shutoff systems
- Boiler and burner fuel supply control
- Natural gas and propane distribution systems
- Safety interlock and emergency shutoff circuits
- High-BTU heating equipment fuel management







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