Electric control valve how to control the pipeline medium of various factors

Electric control valve is a power supply to drive the electric actuator and then drive the valve for throttling, it is the industrial automation process control in the important executive unit instrumentation. With the increasing degree of automation in the industrial field, it is being used more and more in various industrial production areas. Compared with the traditional pressure control valve series, electric control valve has obvious advantages: electric single seat control valve energy saving, environmental protection, and installation is more fast and convenient.

Electric control valve through the receipt of industrial automation control system signals to drive the differential pressure control valve series door to change the size of the cross-sectional area between the spool and valve seat to control the flow of pipeline media, temperature, pressure and other process parameters, to achieve automated regulation function.

Electric sleeve control valve electric actuator for the electronic integrated structure, there is a servo amplifier, Dada, pneumatic seeding mill control valve series input control signals and power to control the valve opening, to achieve the pressure, flow, level, temperature and other parameters of the regulation. Note: In order to ensure that the regulating valve can work normally when driving and make the system operate safely, before installing the new valve, you should first check whether the nameplate marking on the valve is consistent with the design requirements.

Article 3:If the original system in the regulating valve for overhaul, in addition to the above items for calibration, should also be the old valve packing box and connections and other parts of the sealing check.

Article 4: control valve in the field use, many often not because of the quality of the control valve itself, but the installation of electric control valve caused by improper use, such as: the installation environment, installation location and direction of the improper or pipeline is not clean and other reasons.

The first: the control valve belongs to the field instrumentation, requires the ambient temperature should be in the range of -25 ~ 60 ℃, relative humidity 95%. If it is installed in the open air or high temperature occasions, waterproof and cooling measures should be taken. In the place where there is a vibration source, it should be far away from the vibration source or increase the anti-vibration measures.

Article 2: electric control valve should generally be installed vertically, special circumstances can be tilted, such as tilt angle is very large or the valve itself is too large when the valve should be added to support the protection of the pieces.

Article 3: the installation of the control valve pipeline generally do not leave the ground or the floor is too high, in the pipeline height greater than 2m should try to set up a platform for the operation of the handwheel and easy to carry out maintenance.

Article 4:The electric control valve should be cleaned before installation of the pipeline to exclude dirt and welding slag. After installation, in order to ensure that impurities are not left in the valve body, the valve should also be cleaned again, that is, pass into the medium should be made to open all valves, so as not to impurities stuck. After using the handwheel mechanism, it should be restored to the original neutral position.

Article 5: In order to make the electric control valve in the event of failure or maintenance so that the production process can continue, the control valve should be added bypass piping. Electric control valve how to control the pipeline medium of various factors