Description
The ASCO 8214240CSA is a heavy-duty, 2-way normally closed solenoid valve engineered specifically for fuel gas shutoff applications in commercial and industrial HVAC systems. With a robust 3-inch connection available in NPT or flange configurations, this valve delivers exceptional flow capacity and reliable automatic shutoff performance.
Key Features
- 2-way, normally closed operation ensures the valve defaults to a safe closed position upon power loss
- 3″ NPT or flange connection for flexible installation in new and retrofit applications
- 120VAC coil voltage for compatibility with standard commercial control circuits
- High flow capacity of 105 Cv — supporting up to 5,661,700 BTU/hr fuel gas throughput
- Rated operating pressure range: 0–5 PSI, ideal for low-pressure fuel gas systems
- Aluminum body construction for a lightweight yet durable build
- NBR (Buna-N) seals provide reliable compatibility with natural gas and other fuel gases
- NEMA 1 enclosure for general indoor use
Specifications
- SKU: 8214240CSA
- Brand: ASCO
- Valve Type: 2-Way Normally Closed Solenoid Valve
- Connection Size: 3″
- Connection Type: NPT or Flange
- Coil Voltage: 120VAC
- Flow Coefficient (Cv): 105
- BTU/hr Capacity: 5,661,700 BTU/hr
- Operating Pressure: 0–5 PSI
- Body Material: Aluminum
- Seal Material: NBR (Nitrile Butadiene Rubber)
- Enclosure Rating: NEMA 1
- Media: Fuel Gas
Applications
- Fuel gas shutoff in commercial boilers and heating systems
- Industrial gas control and safety shutoff systems
- Low-pressure natural gas distribution and control
- Burner management and combustion control systems
The ASCO 8214240CSA is built to meet the demanding requirements of fuel gas safety shutoff, offering installers and engineers a trusted, high-capacity solution backed by ASCO’s decades of solenoid valve expertise.







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