Johnson Controls V-4440-1008 Valve Assembly

The Johnson Controls V-4440-1008 is a professional-grade three-way brass valve assembly specifically engineered for return valve applications in terminal unit control systems. Featuring a 1/2" NPT connection and a 2.4 Cv flow coefficient, this assembly provides precise modulation for hot water, chilled water, or 50% glycol solutions. The integrated pneumatic actuator operates within a 6 to 9 psi spring range, ensuring reliable proportional control and fail-safe positioning during pressure fluctuations. Built with a rugged brass body and high-quality internal components, the V-4440-1008 minimizes bypass leakage and maintains system equilibrium in demanding HVAC hydronic systems. This kit includes the necessary elbow connector to streamline mixing valve or diverting valve field installations. Technicians favor this model for its ability to maintain consistent discharge temperatures and its compatibility with standard pneumatic controllers, making it an essential component for effective terminal unit maintenance and system balancing.

• Precision Flow Control: The 2.4 Cv rating ensures accurate fluid delivery for bypass and return applications.
• Pneumatic Reliability: A calibrated 6 to 9 psi spring range allows for seamless integration with existing pneumatic infrastructure.
• Durable Construction: Heavy-duty brass body prevents corrosion and extends service life in closed-loop systems.
• Installation Ready: Includes a factory-matched elbow connector to reduce labor time and ensure leak-free connections.

What is the maximum operating temperature for this valve assembly?
The V-4440-1008 is typically rated for fluid temperatures ranging from 35°F to 250°F, depending on the specific seal material and system pressure.

Can this valve be used for steam applications?
Standard V-4440 series assemblies are designed for water and glycol solutions; always verify specific trim options if steam service is required.

How do I adjust the spring range in the field?
The 6 to 9 psi range is factory-set; however, fine-tuning is performed via the pneumatic controller's output signal to match the required stroke.

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.