Which actuator should I use for my valve?

The Valmet Jamesbury QPX actuator has a spring & diaphragm design, which allows for smooth operation and finer adjustments. This makes it a great choice to pair with the RE series control valves for modulating applications. A VPVL rack & pinion style actuator is more durable, making it the sensible choice for on/off applications that don’t need the control that the QPX actuator offers.