Positioners

Electro-Pneumatic Positioners are critical components used for the precise operation of pneumatic valve actuators. They work by receiving electronic input signals from a control system or controller, which they use to modulate the supply pressure to the control valve actuator. This results in an accurate valve stem position that is proportional to the pneumatic input signal received from the control device.

Application features:

• Versatility: They are suitable for various types of actuators, be they linear or rotary, and can work with single or double-acting actuators.
• Accuracy and Responsiveness: These devices offer smooth operation with no resonance in the 5~200Hz range, ensuring a rapid and precise response to changes in the control signal.
• Economical Operation: Designed to consume less air, these positioners are cost-effective. Many models also offer easy control over the 1/2 split range, which doesn’t require part replacements, further enhancing their cost-effectiveness.
• Hunting Prevention: Many models have a built-in feature to prevent hunting in small size actuators, thereby ensuring smooth operation.
• Precise Control: They maintain an accurate valve stem position, which is proportional to the received pneumatic input signal.
• Flexibility: These devices allow for an easy change between different modes of action, increasing their applicability in a variety of systems.