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Hydraulic actuators control hydraulic valves and are used in industrial, HVAC, and refrigeration systems. They convert energy into motion and are commonly used in water valves for various applications, including HVAC systems and data centers. Refrigerators also use water actuators in the form of paddles to dispense water.
A hydraulic actuator is a device that is intended to open and close a type of hydraulic valve. These actuators are found in industrial applications, some heating, ventilation and air conditioning (HVAC) systems, and are also often found in refrigerators. A common example of these actuators is in chilled water HVAC systems. These systems typically use electronic actuators to allow chilled water to move through the system or stop the flow, effectively controlling the temperature in a building or more confined space. Another common example of a water actuator is the paddle that some refrigerators use to dispense filtered or chilled water on demand.
Actuators are devices used to control other components, such as valves. The primary purpose of an actuator is to take a form of energy and convert it into motion. Some examples include electric actuator motors that use electricity to drive a rotary valve or a mechanical actuator such as a screw that converts between linear and rotary motion. Actuators used to control the flow of water are found in various industrial applications, water treatment plants and many other areas. In general, any application using water valves requires some type of water actuator to control the flow.
A common use of a hydraulic actuator is in heating, ventilation and air conditioning systems that use heated or chilled water. These systems circulate water throughout a building or other confined space and use heat transfer to control temperature. Electric water actuators are usually used to control the flow of water. Some data centers use a similar system, where chilled water is piped into a server room to keep the temperature down. In this case a water actuator is also used to allow cold water to flow when needed.
Another use for water actuators is refrigerators that include internal water and ice dispensers. These water actuators typically take the form of a paddle component attached to a knife or ball valve inside the refrigerator door. When a glass is pressed against the scoop component, it causes the valve to open. This in turn allows the water to flow out of the dispenser and into your glass. This is an example of a mechanical actuator, as the paddle acts as a lever and converts the energy generated by pressing the glass against it into the motion needed to open the valve.
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