They are the first choice for attaining fast and high actuating forces: Pneumatic actuators. Equipped with robust EPDM diaphragms, they ensure universal use and low-hysteresis control across the entire actuating range. Even under extreme conditions, A. Hock diaphragm actuators are a reliable choice for actuating your control valves. What’s more, they live up to all explosion protection demands without any additional expenses.
Pneumatic actuators are widely used by the chemical and petrochemical industries. The robust, low-maintenance and moderately priced devices for pneumatic and electro-pneumatic instrumentations are suitable for unrestricted use in potentially explosive installations.
Your advantage: If the compressed air fails, the spring forces automatically put the control valve back in the desired position: the fail-safe position.
In addition to their safety functions, the pneumatic diaphragm actuators also boast high actuating forces, especially in comparison with electric actuators.
Many well-known manufacturers of industry valves use pneumatic diaphragm actuators by A. Hock. They are adapted to the respective valve and powder-coated in the desired color. Our decades of experience with pneumatic appliances and countless successful projects make our actuators for control valves a reliable choice for your facilities.
What the A. Hock service portfolio also includes: the design and dimensioning of pneumatic diaphragm actuators. The specially developed calculation tool AIR&SPRING fully maps the actuator calculation and allows the exact and fast design of pneumatic actuators to your valve!
Would you like to know more about our pneumatic diaphragm actuators for valves?
Don’t hesitate to contact us – we’re happy to assist!