Johnson Controls V47AC-3 Valve

The Johnson Controls V47AC-3 is a 3/4" NPT temperature actuated water regulating valve engineered for precision modulating control in HVAC and industrial refrigeration systems. This direct-acting valve is designed to open as the sensed temperature increases, making it ideal for maintaining head pressure or cooling industrial equipment like air compressors and condensers. Featuring a heating point range of 115°F to 180°F, it utilizes a Style 4 sensing bulb (11/16" diameter x 3-1/4" length) on a 6-foot capillary to ensure accurate thermal response. The cast brass body construction is rugged and eliminates sliding parts in the water stream, significantly reducing water hammer, chatter, and internal wear. Fully compatible with water and glycol solutions, the V47AC-3 (identical to V47AC-3C) provides a 1/2" NPT external fitting for streamlined installation in standard piping layouts.

Key Benefits for Contractors

• High-Temperature Modulation: Precise 115-180°F range for high-heat industrial applications.
• Reduced System Vibration: Specialized seat design minimizes water hammer and piping resonance.
• Corrosion Resistance: Heavy-duty cast brass body ensures longevity in fluid-handling environments.
• Manual Flushing: Built-in capability to clear debris from the valve seat without disassembly.
• Direct Interchangeability: Seamlessly replaces or upgrades older V47 series and the V47AC-3C model.

Common Questions

Is the bulb suitable for immersion in corrosive fluids?
The Style 4 bulb is standard for water and glycol; for highly corrosive chemicals, a well is recommended to protect the sensor integrity.

Can this valve be used for steam applications?
No, this series is specifically designed as a water regulating valve for liquid cooling or heating media and is not rated for steam modulation.

What is the difference between V47AC-3 and V47AC-3C?
There is no functional difference; the models are identical in technical specifications, physical dimensions, and performance curves.

This item is not eligible for free shipping.

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.