Johnson Controls V-3966-1002 Valve

The Johnson Controls V-3966-1002 is a heavy-duty, two-way brass pneumatic valve designed for high-accuracy flow regulation in HVAC terminal units. Engineered for professionals handling fan coils and reheat coils, this 1/2" flare valve features a normally closed configuration to ensure system safety and efficiency during power or air signal loss. With a 3.2 Cv flow coefficient and a precise 9-13 psi spring range, it provides stable throttling control for hot and cold water service. The V-3000 series actuator provides reliable air-to-spring operation, while the stainless steel stem and brass body ensure durability in demanding mechanical rooms. This pneumatic control valve is a standard-issue component for contractors maintaining Johnson Controls legacy systems or installing new pneumatic automation loops. Integrating this brass pneumatic valve into your hydronic setup ensures consistent HVAC flow regulation and effective heat transfer across small terminal equipment.

• Precision Throttling: The 3.2 Cv rating ensures optimal flow management for terminal unit applications like perimeter radiation.
• Rugged Build: Constructed with a brass body and stainless steel stem for long-term service in non-potable water systems.
• Reliable Actuation: The V-3000 pneumatic actuator provides consistent 9-13 psi response for precise modulation.
• Standard Flare Connections: Features 1/2 inch flare ports for secure, leak-resistant installation in existing copper or PEX loops.

Is the V-3966-1002 suitable for steam applications?
This specific model is primarily designed for hot and cold water service in HVAC terminal units. For steam applications, please verify the seat material and pressure ratings against your specific system requirements.

What is the default position of this valve?
This is a normally closed (NC) valve, meaning it will return to the closed position upon loss of control air pressure.

Can I use this for potable water?
No, this brass valve is intended for non-potable HVAC water applications and does not meet lead-free requirements for drinking water systems.

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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.