Johnson Controls V47AA-1 Regulating Valve

The Johnson Controls V47AA-1 is a professional-grade, direct-acting temperature actuated water regulating valve designed specifically for heating applications in commercial HVACR systems. As the direct cross for V47AA-18, this 2-way modulating valve utilizes a Style 4 remote bulb (11/16" diameter x 3-1/4" length) and a 6-foot capillary to provide precise thermal control. The cast brass body construction features a 3/8" NPT connection with a 1/2" NPT external fitting, ensuring robust performance in demanding environments. This valve operates within a heating set point range of 115°F to 180°F, modulating water flow through the heat exchanger or condenser to maintain stable discharge temperatures. For technicians performing retrofits or new installations, the V47AA-1 water valve offers a reliable solution for maintaining optimal system efficiency without the need for external power, relying entirely on the vapor-pressure sensing element for mechanical actuation.

• Direct-Acting Modulation: Opens on temperature rise to effectively manage cooling water flow in heating-responsive circuits.
• High-Temperature Range: Specifically calibrated for 115 to 180 degrees F heating point requirements.
• Corrosion Resistance: Heavy-duty cast brass construction prevents degradation in high-moisture commercial environments.
• Installation Versatility: The 6-foot capillary allows for remote sensing bulb placement away from the valve body for more accurate readings.
• OEM Compatibility: Serves as a standard 3/8" NPT Johnson Controls regulating valve for seamless Field service replacement.

Is the V47AA-1 a direct replacement for the V47AA-18?
Yes, the V47AA-1 is the manufacturer-designated direct cross-reference for the V47AA-18, maintaining the same 3/8" NPT footprint and thermal specifications.

What type of sensing bulb does this valve use?
This unit features a Style 4 bulb measuring 11/16" x 3-1/4", designed for immersion in the fluid medium via the included 1/2" NPT external fitting.

Does this valve require an external power source?
No, the V47AA-1 is a self-contained, temperature-actuated mechanical valve that uses internal pressure changes to modulate flow.

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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.