Description
The Johnson Controls V-3766-1002 is a 1/2″ flare-connection pneumatically operated control valve engineered for reliable hot and cold water service in commercial HVAC hydronic systems. Configured as a Pressure-Dependent Two-Way Control (PDTC) valve in a Normally Open (N.O.) position, it closes on rising pneumatic signal — making it ideal for pneumatic control systems where fail-safe open operation is required.
Key Specifications
- Connection Type: 1/2″ Flare
- Valve Action: PDTC — Normally Open (closes on rising signal)
- Spring Range: 3–6 PSI
- Flow Coefficient: Cv = 1.7
- Media: Hot and Cold Water
- Actuator Port: 1/8″ NPT barbed fitting
- Compatible Polytubing: 5/32″ or 1/4″ OD polytubing for actuator connection
- Valve Stem Diameter: 1/4″
- Valve Stroke: 5/16″
Design & Performance
The V-3766-1002 features a compact, precision-machined body with a 1/2″ flare connection for leak-free installation in copper piping systems. The 1.7 Cv flow rating is well-suited for terminal unit applications such as fan coil units, unit ventilators, and induction units. The 3–6 PSI spring range provides a defined throttling band compatible with standard pneumatic controllers and thermostats.
Actuator Compatibility
The 1/8″ NPT barbed actuator port accepts 5/32″ or 1/4″ OD polytubing, ensuring straightforward connection to pneumatic actuators commonly used in building automation and pneumatic control systems. The 1/4″ valve stem diameter and 5/16″ stroke are matched to compatible Johnson Controls pneumatic actuators.
Applications
- Fan coil unit hot and chilled water coil control
- Unit ventilator water valve applications
- Pneumatically controlled hydronic terminal units
- Commercial building HVAC systems with pneumatic controls
- Retrofit and replacement in existing pneumatic valve installations
Why Choose the Johnson Controls V-3766-1002?
As a trusted name in building controls and HVAC valves, Johnson Controls delivers consistent quality and compatibility across its pneumatic valve and actuator product lines. The V-3766-1002 is a direct-fit solution for maintaining precise temperature control in pneumatic HVAC systems, offering dependable normally open fail-safe operation and long service life in both heating and cooling water applications.
Reviews
There are no reviews yet.