Quarter-Turn


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Nu-Torque

Quarter turn valve actuators: Purpose, functionality & application.

A quarter-turn valve actuator is a mechanical device that uses electrical energy to open or close valves. It controls the valve from 0 to 90 degrees motion (a quarter turn) and allows for highly accurate positioning. With manually operated valves, a user needs to adjust them, whereas ¼ turn electric actuators are designed to automate the opening and closing process remotely. They work effectively with rotary motion valves such as choke valves, dump valves, plug valves, ball valves, and more.
 
Quarter turn electric actuators are useful in various industries such as water and wastewater, manufacturing, food and drink, oil, and gas. They can also be used in heating, ventilation, and air conditioning systems to handle the airflow.
 

BENEFITS:

  • Compact design
  • Lightweight
  • Automated and remote operation
  • Highly accurate positioning
  • Durable
  • Energy efficient
  • Low noise pollution
  • Individually adjustable switches
  • Thermal sensors and monitor module available
  • Operates in highly corrosive environments
RELATED PRODUCTS: INDUSTRIAL ELECTRIC VALVE ACTUATOR E03, E05, E15, NUTATING MOTOR ACTUATOR - MI6Q, INDUSTRIAL QUARTER-TURN ELECTRIC ACTUATOR MI05Q, MI12Q, EXPLOSION PROOF ACTUATOR - MI12QX.
 

Actuator torque

Quarter turn valve actuators either have an AC or DC electric motor, delivering a range of torques. Torque is dependent on numerous factors, such as the working pressure and size of the valve. A quarter-turn actuator produces torque to provide a rotary motion to operate the quarter-turn valve. The user or the valve manufacturer usually determines torque output. The valve and actuator need to have a reasonable torque range, so the valve can open and close as expected. If the actuator torque is too small, the valve cannot open or close.
 

Breakaway torque

Compared to normal torque, breakaway torque refers to the torque required to break away from a valve in an open or close position and revert to a rest position. A fully functioning valve actuator should provide a torque's higher than the valve's breakaway torque for it to run effectively in any application.