Description
The ASCO K3A651V is a 3/4-inch normally closed (NC) solenoid gas valve designed for dependable automatic shutoff in gas-fired HVAC and heating applications. Rated for 24-volt operation and a maximum inlet pressure of 5 PSI, this valve provides safe, responsive control of gas flow in residential and light commercial systems.
Key Features
- 3/4″ pipe connection for straightforward installation into standard gas lines
- Normally Closed (NC) operation — valve closes automatically on power loss for fail-safe shutoff
- 24V coil voltage — compatible with standard low-voltage HVAC control circuits
- 5 PSI maximum gas pressure rating
- Engineered for reliable, long-service-life performance in gas control applications
- ASCO quality construction for consistent valve seating and leak-free operation
Specifications
- Brand: ASCO
- Model / SKU: K3A651V
- Connection Size: 3/4″
- Coil Voltage: 24V
- Valve Action: Normally Closed (NC)
- Maximum Operating Pressure: 5 PSI
- Media: Gas
Application
The ASCO K3A651V is well suited for use in gas furnaces, boilers, unit heaters, and other gas-fired equipment where automatic, electrically controlled shutoff is required. The normally closed design ensures the gas supply is interrupted whenever the control circuit is de-energized, supporting safe system operation and compliance with standard safety practices.







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