Description
The ASCO K3A551V is a 3/4-inch normally closed (NC) solenoid-operated gas valve designed for reliable, automatic shutoff in residential and light commercial HVAC gas systems. Engineered by ASCO — a trusted name in fluid control — this valve provides dependable on/off gas flow control when energized at 24 volts AC, making it a natural fit for standard HVAC control circuits.
Key Features
- 3/4″ pipe connection for straightforward inline installation
- 24V operating voltage — compatible with standard HVAC low-voltage control systems
- Normally closed (NC) operation — valve closes automatically upon power loss for fail-safe shutoff
- 3 PSI maximum gas pressure rating
- Solenoid-actuated design for fast, precise response to control signals
- Built for use on gas systems including natural gas and LP applications (verify compatibility before installation)
Specifications
- SKU: K3A551V
- Brand: ASCO
- Connection Size: 3/4″
- Voltage: 24V
- Operation: Normally Closed (NC)
- Maximum Gas Pressure: 3 PSI
- Valve Type: Solenoid Gas Valve
Applications
- Gas furnaces and boilers
- Residential and light commercial heating systems
- Automatic gas shutoff and control circuits
- Any 24V HVAC control system requiring reliable NC gas flow management
The ASCO K3A551V is a straightforward, dependable solution for technicians who need a quality normally closed gas valve that integrates seamlessly into existing 24V HVAC control architectures. Its fail-safe NC design ensures gas flow is interrupted whenever the control circuit is de-energized, supporting safe system operation.
