Johnson Controls V-9999-6003 Spring Kit

The Johnson Controls V-9999-6003 Spring Kit is a vital maintenance component designed for technical field service on VT Series Terminal Unit Valves. This kit provides a 9 to 13 PSI spring range, calibrated specifically for 5/16-inch stroke applications. It is the correct service part for ensuring precise tension and modulating control when paired with V-3802 Series oval top actuators or V-4000 pneumatic actuators. By replacing worn internal springs, technicians can restore the original close-off force and operating characteristics of the valve assembly without requiring a full valve body replacement.

Constructed from high-tensile materials, the V-9999-6003 is engineered to handle the constant cycling inherent in commercial HVAC terminal unit applications. Each kit contains the replacement spring, upper spring seat, and retainer necessary to overhaul the internal compression mechanism. Utilizing this OEM-spec Johnson Controls spring kit ensures compatibility with existing VT series hardware, maintaining the integrity of the pressure-dependent control loop and preventing common issues like valve bypass or hunting caused by fatigued spring tension.

• Precise Modulation: Restores the 9 to 13 PSI pressure range for accurate valve positioning.
• Extended Service Life: Allows for cost-effective repair of VT Style Valves instead of complete replacement.
• Actuator Compatibility: Specifically designed for seamless integration with V-3802 and V-4000 actuators.
• Standardized Stroke: Maintains the factory-specified 5/16" stroke for consistent flow control.
• OEM Reliability: Genuine Johnson Controls part ensures dimensional accuracy and material performance.

Is this spring kit compatible with V-3000 series actuators?
No, the V-9999-6003 is specifically intended for VT valves using the V-3802 or V-4000 actuators. V-3000 series actuators require a different configuration, such as the V-3752 or V-4332 series kits.

What are the symptoms of a failing valve spring?
Typical indicators include the valve failing to reach full close-off, sluggish response to pneumatic signal changes, or the actuator failing to return the valve to its fail-safe position when pressure is removed.

Does this kit include the packing seals?
This kit focuses on the spring assembly. If you are experiencing stem leaks, you should also consider V-9999-608 or V-9999-610 packing kits during the overhaul.

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.