ASCO K3A451V Valve

ASCO K3A451V Valve

  • $247.45


The ASCO K3A451V is a heavy-duty 2-way normally closed (NC) gas shutoff solenoid valve engineered for critical applications in commercial and industrial combustion systems. This high-performance 3/4 inch NPT valve is optimized for low-pressure environments, managing a maximum pressure of 1/2 PSI with a high flow capacity of 9.5 Cv. Built with a rugged die-cast aluminum body, the K3A451V provides reliable on/off control for burners, boilers, and furnaces, ensuring positive shutoff when de-energized. Operating on a 24V AC electrical signal, this direct-acting gas valve integrates seamlessly into standard HVACR control circuits. For simplified maintenance, it features internal 1/8 inch NPT upstream and downstream test ports for routine pressure checks. Designed for efficiency, the ASCO K3A451V boasts a rapid response time of under one second and operates reliably across a wide ambient temperature range, making it a staple for safe and precise fuel gas management.

Key Benefits
  • Enhanced Safety: High-speed normally closed operation ensures immediate gas shutoff in the event of a power loss.
  • Durable Construction: Lightweight yet robust die-cast aluminum body resists corrosion and stands up to demanding industrial environments.
  • Simplified Testing: Integrated 1/8 inch NPT test ports allow technicians to perform maintenance and pressure checks without removing the valve.
  • High Flow Performance: An impressive 9.5 Cv rating supports maximum BTU throughput for large-scale heating equipment.
  • Broad Compatibility: The 3/4" NPT connection and 24V AC coil make it a direct replacement for various standard gas solenoid models.
Common Questions

What is the maximum pressure for the ASCO K3A451V?
This valve is designed for low-pressure gas applications with a maximum gas pressure of 1/2 PSI (approx. 14 inches W.C.).

Can the K3A451V be used for both pilot and main gas lines?
Yes, its versatile design and high flow capacity allow it to serve as a reliable safety shutoff valve for either pilot or main gas burner lines.

What type of gas is compatible with this solenoid valve?
The ASCO K3A451V is primarily used for fuel gas, including natural gas and propane in industrial and commercial heating systems.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

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