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What are the characteristics and principles of electric control valve?

Electric control valve is one of the common valves in industrial production. It is mainly composed of adjusting valve and electric execution system through assembly and debugging. In addition, the electric control valve also has a filler, which is rarely estimated. Here's a detailed introduction for everyone:

In the use of electric control valve for many years, the filler is still the main use of asbestos packing or graphite packing or polytetrafluoroethylene V-type packing, these fillers will receive the valve restrictions, subject to a factor, and the use of electric control valve During the process, with the increase in the number of applications, the filler will wear out, the gap will increase, and the addition of maneuvering times will cause wear on the packing in the valve, leading to leakage and other doubts. This requires us to replace the filler or reduce the number of opening and closing. For its wear and tear, when selecting the filler, it is necessary to pay attention to the advantages of each filler, and choose the right one. There is a way to maintain excellent sealing after several million times of opening and closing. It is to put a ring under the filler and a spring under the filler. This can cause time-consuming and Tight packing, so that the effect of reaching dense, is not affected. The use of this method requires the filler to be viewed and protected from time to time, building wear and so on.

Electric control valve is a kind of control valve that we know very well. The control ability of the circulation is very weak. There are three-way confluence, electronic sleeve, single seat, two-seat, intelligent, high pressure, high temperature, and diaphragm. , They are all satisfied with the different conditions used, and all have advantages, today we are not on the selection of electric control valve selection, and later we will introduce the specific, now starting from the beginning of the check valve of the electric control valve analysis .

In the calibration of the electric control valve is still the first to start from the electric actuator, because the electric actuator is the driving device to control the valve, in the current good control valve will be accompanied by a positioner to update the media in the control valve , during which the check is mainly: check before connecting the line, view and power, the degree of opening and so on to test the use of regulating valve, but also pay attention to the use of light in the state may open and close, but also need to direction, carry out the alignment, After the operation of the switch to investigate the operating conditions, it is necessary to insist that the valve is not a seizure, you need to add a dead zone of the positioner. Specifically investigate the use of each component and adjust it according to the positive itinerary.

The tight sealing of the electric control valve can be used in a variety of harsh environments, and the ability of the temperature range is strong. Positioners can be installed in the regulating valve, and maintenance valves and bypass valves can also be used to facilitate maintenance. The electric actuator has strong control over the electric control valve, and the precision is very high, which makes the adjustment medium in various working conditions one of the most powerful and cost-effective valves.

The electric control valve is most suitable for the upper part of the working piston and the lower part of the horizontal tube.

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