How is the accuracy and reliability of regulating valve guaranteed?
Publish Time: 2025-01-09
Regulating valve is a key component in industrial automation control system, which is used to accurately control the flow, pressure and temperature of fluid medium. In order to ensure the accuracy and reliability of regulating valve, a series of measures need to be taken, and all links from design, manufacturing to installation and maintenance must be strictly controlled.
In the design stage, the selection of regulating valve must be strictly calculated, including the matching of type, caliber and various performances. The selected materials must have sufficient strength and rigidity, and meet the requirements of pressure resistance test and air tightness test of national standards. In structural design, the flow channel design should be optimized to reduce fluid resistance and improve regulation accuracy. At the same time, in order to ensure the stable operation of the valve, the influence of unbalanced force should be considered, and the appropriate valve core and guide structure should be selected.
In the manufacturing stage, the manufacturer needs to have advanced manufacturing technology and testing equipment. The processing accuracy and assembly quality of parts directly affect the performance of regulating valve. Therefore, in the production process, key components should be strictly tested and quality controlled. In addition, to ensure the sealing performance, high-quality sealing materials and reasonable sealing structures should be selected to avoid leakage.
In the installation stage, the installation position and method of regulating valve have an important impact on its performance. The appropriate installation location should be selected according to the actual working conditions to ensure that the valve is easy to operate and maintain. At the same time, the installation should be carried out in strict accordance with the installation regulations to avoid performance degradation caused by installation errors.
During the maintenance stage, regular maintenance and calibration are the key to ensuring the accuracy and reliability of the regulating valve. This includes cleaning the inside of the valve, checking the wear of the valve stem, valve seat and sealing components, and performing necessary lubrication and replacing wearing parts. In addition, zero point calibration and range calibration are required to ensure the accurate response of the valve under the control signal.
In summary, the accuracy and reliability of the regulating valve are guaranteed by strict control of multiple links such as design, manufacturing, installation and maintenance. Each link is crucial, and any negligence may lead to a decline in valve performance and affect the stability and safety of the entire control system. Therefore, when selecting and using the regulating valve, be sure to choose a qualified and experienced manufacturer, and operate and maintain it in strict accordance with relevant regulations.
