What is the basis for the selection of electric ball valves?

Selection basis for electric ball valve

1. It is a control element. It is widely used in fluid piping systems and has many uses. It has very good effects on controlling flow, pressure, return, etc. Since the quality of the electric ball valve has a great impact on the safety of the pipeline, when choosing an electric ball valve, it must be selected according to certain steps and basis.

2. Clarify the diameter of your company's pipeline, know what type of diameter and connection method you need to choose electric ball valve.

3. According to the needs of the pipeline, first determine some common parameters of the electric ball valve, such as the discharge capacity, the allowable flow resistance, the diameter of the valve seat hole, etc. If these parameters are not selected correctly, the electric ball valve controls the flow rate. It will be greatly reduced.

4. According to the working temperature of the pipeline, choose the right material. Of course, the working pressure of the pipeline should also be taken into consideration.

In addition to paying attention to pipeline parameters, electric valves should also pay special attention to the environmental conditions of their obligations. Since the electric device in an electric valve is an electromechanical device, its obligation status is greatly affected by its obligation environment.

Under normal conditions, special attention should be paid to the use of electric ball valves in the following environments:

(1). Indoor installations or outdoor applications with protective methods;

(2). Outdoor open-air installations are corroded by wind, sand, rain and dew, sunlight, etc.;

(3). Possess a flammable, explosive gas or dust environment;

(4). Humid tropical and dry tropical environment;

(5). The temperature of the pipeline medium is as high as 450℃ or more;

(6). The ambient temperature is below -20℃;

(7). Easy to be flooded or immersed in water;

(8). With radioactive material (nuclear power plant and radioactive material testing device) environment;

(9). The environment on the ship or dock (with salt spray, mold, humidity);

(10). Occasions with severe vibration; occasions prone to fire;

For the electric ball valve in the above environment, the electric device structure, material and protection method are different. Therefore, the corresponding valve electric device should be selected according to the above-mentioned obligation environment.

Electric ball valve function requirements

According to engineering control requirements, for electric ball valves, their control functions are completed by electric devices. The purpose of applying electric ball valves is to complete non-manual electrical control or computer control of valve opening, closing and adjustment linkage. The current application of electric devices is not just for diligence and labor saving. Since the functions and quality of products from different manufacturers are quite different, the selection of electric devices and the selection of valves are equally important to the project.

Electric control of electric ball valve

As the requirements of industrial automation level are always improving, on the one hand, the application of electric valves is increasing, and on the other hand, the control requirements for electric valves are getting higher and higher and more complicated. Therefore, the design of electric valves in electric control is always updated. With the continuous improvement of use requirements, the improvement of Shanghai Mingbao valve and the popularization and application of computers, new and diverse electrical control methods will always appear. Regarding the overall control of the electric valve, attention should be paid to the selection of the control method of the electric valve. For example, depending on the needs of the project, whether to use a centralized control method or a single control method, whether to link with other equipment, sequence control or application computer sequence control, etc., the control principles are different.

See More: Electric ball valve

#electric #ball #valve #kepler #project #environment