Johnson Controls V-9999-6001 Spring Kit

The Johnson Controls V-9999-6001 Spring Kit is a vital component for technicians performing field maintenance on VT Series Terminal Unit Valves equipped with V-3802 or V-4000 pneumatic actuators. Engineered to facilitate precise pneumatic valve calibration, this kit features a 3 to 6 psi spring range and supports a 5/16" stroke length, ensuring the actuator provides the necessary force for accurate valve positioning in 1/2-inch body styles. This OEM Johnson Controls part replaces worn or fatigued springs that cause hysteresis or failure to reach full stroke, critical for maintaining HVAC terminal unit control in high-demand commercial environments.

By utilizing this actuator repair kit, contractors can restore the normally open or normally closed operation of their V-3000 series oval-top or non-metallic actuators. The assembly includes the spring, upper and lower spring seats, stem extension, and stem locking screw, providing a complete solution for pneumatic actuator spring replacement. Professional installation ensures consistent pressure response and prevents the common "stiction" issues associated with aged mechanical linkages.

• Precise Pressure Modulation: Specifically calibrated for a 3-6 psig spring range to ensure linear response to control signals.
• Exact Mechanical Compatibility: Designed for an exact 5/16 inch stroke, preventing over-travel or restricted flow in Johnson Controls VT valves.
• Complete Installation Package: Includes essential hardware such as the stem extension and locking set screw to streamline field repairs.
• System Stability: Reduces hunting and improves the positioning accuracy of pneumatic control valves in HVAC terminal units.

Which actuators are compatible with the V-9999-6001?
This kit is purpose-built for the Johnson Controls V-3802 (oval top) and V-4000 (non-metallic) pneumatic actuators when mounted on 1/2" VT series valves.

How do I verify if I need a 3-6 psi or 4-8 psi spring kit?
Technicians should check the original equipment data plate or verify the control signal range from the thermostat; the V-9999-6001 is specified for 3-6 psi ranges, whereas the V-9999-6002 is used for 4-8 psi requirements.

Does this kit include the replacement packing?
No, this is a linkage and spring kit. If you are experiencing stem leaks, you will need to order a separate V-9999-608 packing kit.

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.