Valve Positioners
Valve Positioners - Pneumatic or Electro-Pneumatic - improve control accuracy and increase maximum close-off pressure capability of the valve. The Positioner is mounted to the valve’s yoke assembly and linked to the valve stem. It receives a transduced air signal or direct electrical signal from the electronic controller and compares the control signal to the actual position of the valve plug. The Positioner then sends a corrected air signal to the valve’s actuator, thereby positioning the valve plug for optimum flow modulation. Available options include Intrinsically Safe, Explosion-Proof and Digital designs.