ohjausventtiiliin

An ohjausventtiili, or control valve in English, is a crucial component in automated industrial processes. Its primary function is to regulate the flow of a fluid, such as liquid or gas, within a system. This regulation is achieved by adjusting the size of the valve opening, thereby controlling the volume or pressure of the fluid passing through.

Control valves are typically operated by an actuator, which receives a signal from a controller. This signal can be pneumatic, electric, or hydraulic, and it dictates the position of the valve. The controller, in turn, monitors process variables like temperature, pressure, or level and compares them to desired setpoints. When a deviation occurs, the controller sends a new signal to the actuator, causing the control valve to adjust its opening and bring the process back to the setpoint.

There are various types of control valves, each designed for specific applications. Common types include globe valves, ball valves, butterfly valves, and diaphragm valves. The selection of a control valve depends on factors such as the required flow rate, pressure drop, fluid properties, and operating environment. Ohjausventtiilit are indispensable for maintaining stable and efficient operation in a wide range of industries, including chemical processing, power generation, water treatment, and manufacturing.