BELEF is a Chinese based company which develops and manufactures pneumatic rack& pinion actuators for the automation of industrial valves. Our product range includes pneumatic actuators and a wide range of control accessories including positioners, limit switches, solenoids, valve controls & accessories & mounting kits...Up to date production and control machinery allows BELEF to track and verify all the production phases, resulting in a high quality level standard on all their products at all times.