Johnson Controls V-3974-6008 Spring Kit

The Johnson Controls V-3974-6008 Spring Kit is a critical calibration component designed for pneumatic valve actuators requiring a specific 4-8 psi spring range. Engineered for a 1/2" stroke, this kit is primarily utilized to maintain or restore the tension and positioning of V-3000-1 and V-3000-2 series actuators. For technicians servicing VG7000 series globe valves or older V-3000 pneumatic units, this kit ensures the actuator returns to its failsafe position with precision, preventing drifting or incomplete valve seating. The assembly includes a heavy-duty spring, upper and lower spring seats, a stem extension, and a stem lock screw to provide a complete overhaul of the mechanical return system. Using this replacement spring kit allows for accurate valve pressure regulation in HVACR environments where consistent modulating control is non-negotiable. Whether you are dealing with hot water, chilled water, or steam applications, these components are manufactured to rigorous industrial standards to withstand high-cycle terminal equipment demands.

• Precise Actuation: Calibrated for a strict 4 to 8 psi operating range to ensure accurate pneumatic control.
• Broad Compatibility: Fits Johnson Controls V-3974, V-3754, V-3212, and V-4324 valve bodies.
• Complete Assembly: Includes stem connector and spring plates for a standard field installation.
• Industrial Durability: Specifically designed to handle the mechanical stresses of a 1/2 inch stroke in modulating service.

Which actuators are compatible with the V-3974-6008?
This kit is specifically designed for the Johnson Controls V-3000 series pneumatic actuators, specifically the V-3000-1 and V-3000-2 models.

What is included in the V-3974-6008 spring kit?
The package contains one 4-8# spring, an upper spring seat, a lower spring plate, a stem extension, and a stem lock screw.

Is a special tool required for installation?
Yes, as these springs are pre-compressed during assembly, the use of a spring compression tool (such as the JC 5389) is recommended for safe removal and reinstallation.

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.