La Vie en rose. La Vie en rose (French pronunciation: â) was the signature song of popular French singer Ãdith Piaf, written in 1945, popularized in 1946, and released as a single in 1947. The song became very popular in the USA in 1950 with no fewer than seven different versions reaching the Billboard charts.
An actuator is a type of motor that is responsible for moving or controlling a mechanism or system. It is operated by a source of energy, typically electric current, hydraulic fluid pressure, or pneumatic pressure, and converts that energy into motion.
Valve Actuator. â¢ Description: A valve actuator (See Figure 1) is a pneumatic or electric mechanism used in process control systems to automatically open or close valves. In standard valves, when the valve is given a command to open to a certain point, there is no feedback to verify that it has opened to that position. â¢ Potential Applications: Valve actuators can be used with either linear or rotary valves in industrial, medical, food and beverage, and transportation applications.