The Johnson Controls V47AB-2 Valve is a rugged, 1/2" NPT direct acting temperature actuated water regulating valve designed specifically for modulating flow in high-demand HVACR applications. Built with a high-durability cast brass body, this modulating water regulating valve is ideal for maintaining precise coolant or process fluid temperatures in heat exchangers, hydraulic oil coolers, and air compressors. It features a cross ambient point range of 75°F to 135°F, ensuring stable operation even when the bulb temperature fluctuates above or below the valve body temperature. The sensing element consists of an 11/16" diameter, 10" long Style 1 bulb and a 6-foot capillary, providing the thermal sensitivity required for accurate condenser water flow control. This industrial temperature control valve utilizes a pressure-balanced design and synthetic rubber diaphragms to isolate the range spring from the fluid, preventing mineral buildup and ensuring long-term reliability in the field. Key Benefits for Contractors: Broad Temperature Range: The 75 to 135-degree F cross ambient point range allows for precise modulation in varying environmental conditions. Reduced Maintenance: The cast brass construction and lack of sliding parts in the water passages minimize the risk of sticking or sediment-related failures. Installation Flexibility: Equipped with a 6-foot capillary and 1/2" NPT connections, the V47AB-2 is easy to integrate into existing mechanical systems. Operational Efficiency: Helps conserve water by modulating flow exactly to the thermal load, improving overall system performance. Common Questions: What is the maximum bulb temperature for the V47AB-2? To prevent damage to the thermal element, do not subject the bulb to temperatures exceeding 155°F (20°F above the maximum range). Can this valve be used for glycol systems? Yes, the Johnson Controls V47AB-2 is compatible with both water and glycol solutions in non-potable closed or open loop systems. How do I adjust the opening point? The opening point is adjusted via the range screw on the spring housing. Turning the screw counterclockwise will raise the temperature at which the valve begins to open. 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.
