How electric control valves regulate various factors of the pipeline medium

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　　An electric control valve uses power to drive an electric actuator, which in turn operates the valve to achieve throttling; it is an important actuating element in industrial automation process control. As automation becomes more advanced in the industrial sector, it is being used increasingly in various areas of industrial production. Compared to traditional pressure control valve series, electric control valves have distinct advantages: electric single-seat control valves are energy-efficient and environmentally friendly, and they are also easier and faster to install. 　　Electric control valves drive the valves in the differential pressure control valve series by receiving signals from industrial automation control systems, thereby changing the cross-sectional area between the valve core and the valve seat and controlling process parameters such as the flow rate, temperature, and pressure of the fluid in the pipeline, thus enabling automated regulation. 　　The electric actuator of the electric sleeve control valve features an electronic, integrated design with a servo amplifier built in. By supplying control signals and power to the Ota and Pneumatic Hamamatsu control valve series, it is possible to adjust the opening degree of the valve, thereby regulating process parameters such as pressure, flow rate, liquid level, and temperature. Note: To ensure that the control valve functions properly during startup and to maintain the safe operation of the system, it is necessary to check first whether the markings on the valve’s nameplate match the design specifications before installing the new valve. 　　Article 3: If a major overhaul is carried out on the control valve in the original system, in addition to verifying the items mentioned above, it is also necessary to check the sealing performance of areas such as the packing gland and connections of the old valve. 　　Article 4: In practical use, many problems associated with control valves are not caused by the quality of the valves themselves, but rather by improper installation and use of electric control valves. These issues can arise from factors such as the inappropriate installation environment, location, and orientation, or from unclean pipelines. 　　Article 1: Control valves are field instruments; the ambient temperature should be within the range of -25 to 60°C, with a relative humidity of 95%. If it is installed in an outdoor or high-temperature environment, waterproofing and cooling measures should be taken. In areas with a source of vibration, one should stay away from it or take additional vibration prevention measures. 　　Article 2: Electric control valves should generally be installed vertically; in special cases, they can be tilted. If the tilt angle is large or the valve’s own weight is too great, support elements should be added to protect the valve. 　　Article 3: Pipes equipped with control valves should generally not be placed too high above the ground or floor. When the pipe height exceeds 2 meters, a platform should be provided as much as possible to facilitate the operation of the handwheel and ease maintenance. 　　Article 4: Before installing the electric control valve, the pipeline should be cleaned to remove dirt and welding slag. After installation, to ensure that no impurities remain inside the valve body, the valve should be cleaned again; that is, all valves should be opened when the medium is introduced, to prevent impurities from getting stuck. After using the handwheel mechanism, it should be returned to its original neutral position. 　　Article 5: To ensure that the production process can continue in the event of a failure or maintenance of the electric control valve, a bypass pipeline should be provided for the control valve.