Johnson Controls V-9502-6801 Positioner Spring

The Johnson Controls V-9502-6801 Positioner Spring is a critical component for fine-tuning the pneumatic actuator response in legacy HVAC control systems. Specifically designed for use with V-3000 Actuated Valves, this spring establishes a fixed operating span, ensuring precise valve positioning and stable flow control. Unlike other series where the span is field-selectable via lever arm positioning, the V-3000 series relies on specific spring rates to define the control range. The V-9502-6801 is engineered to provide a 3 PSI span at a 5/16" stroke, a 5 PSI span at a 1/2" stroke, and a 10 PSI span at a 3/4" stroke. Integrating this pilot positioner spring allows technicians to compensate for stem friction and unbalanced forces within the valve body, maintaining accurate modulating control of steam or water flow. Constructed for durability in demanding environments, it maintains performance standards across a broad ambient temperature range from -20 to 150°F.

• Precise Control: Enables accurate sequencing and stable positioning for V-3000 series actuators.
• Versatile Compatibility: Supports multiple valve strokes and operating spans (3, 5, and 10 PSI) with a single spring kit.
• Enhanced Power: Assists the V-9502 positioner in overcoming high differential pressures and media surge forces.
• Reliable Calibration: Works in conjunction with the starting point adjustment screw (2-12 psig) for custom pneumatic valve setups.

How do I change the operating span for a V-3000 actuator?
On V-3000 series actuators, the operating span is fixed by the spring itself. To alter the span, you must replace the existing spring with one rated for your required pressure range, such as the V-9502-6801 for 3, 5, or 10 PSI applications.

Can I use this spring with VG7000 Series valves?
Yes, this positioner spring is compatible with VG7000 series valves (1/2" to 2") when they are equipped with a V-3000-8011 or similar pneumatic actuator and the corresponding V-9502 pilot positioner.

What happens if the spring is installed in the wrong hole on the lever arm?
For V-3000 actuators, high-authority technical data specifies that the V-9502-6801 should always be installed in the hole furthest from the positioner body to maintain the calibrated operating span.

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.