Johnson Controls V47AR-2 Regulating Valve

The Johnson Controls V47AR-2 is a heavy-duty, direct acting temperature actuated water regulating valve designed for precision thermal management in demanding industrial and commercial HVACR applications. Built with a rugged cast iron body and a 1 1/2" ASME flange connection, this valve is engineered to modulate the flow of cooling water or glycol to maintain setpoint stability in heat exchangers, internal combustion engines, and large-scale air compressors. Featuring a heating point range of 115 to 180 degrees F, the V47AR-2 utilizes a Style 4 temperature bulb (11/16" diameter x 6" length) and a 6' capillary to sense medium temperature. As a direct-acting component, the valve opens on a temperature increase, ensuring efficient heat dissipation. Its pressure-balanced design employs rubber sealing diaphragms to protect internal range springs from mineral deposits and corrosion, while the 1/2" NPT external fitting allows for seamless integration into existing liquid lines. This valve is a critical solution for contractors looking to maximize system efficiency and conserve water in high-capacity cooling loops.

• Enhanced Durability: The cast iron construction and ASME flanged ends provide a high-strength connection capable of withstanding industrial hydraulic shock.
• Corrosion Resistance: A direct acting internal design ensures no close-fitting sliding parts are in the water passage, reducing the risk of scaling and sticking.
• Stable Modulation: The pressure-balanced valve design prevents fluctuations in water inlet pressure from affecting the temperature setpoint.
• Maintenance Friendly: Built for in-line servicing, allowing technicians to replace diaphragms or the sensing element without removing the valve body from the piping.
• Application Versatility: Ideal for condenser water regulation and high-temperature heating applications requiring precise fluid control.

• What is the maximum bulb temperature for the V47AR-2? To prevent equipment damage, the temperature bulb should never be subjected to temperatures more than 20°F above the maximum 180°F range.
• How do you adjust the opening point? Technicians can adjust the setpoint by turning the range adjusting screw; turning it clockwise increases the temperature at which the valve begins to open.
• Is this valve compatible with seawater? While the standard cast iron body is for fresh water, specific HVACR regulating valves with maritime-grade bronze bodies are required for seawater applications.

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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.