What is the basis for selecting electric ball valves?
1、 It is a control component that is widely used in fluid pipeline systems and has many applications. It has excellent effects in controlling flow, pressure, reflux, and so on. Due to the quality of electric ball valves, it has a significant impact on the safety of pipelines. Therefore, when selecting electric ball valves, it is necessary to follow certain steps and criteria.
2、 Clarify the diameter of your company's pipelines and know what type of diameter and connection method to choose for electric ball valves.
3、 According to the needs of the pipeline, first determine some common parameters of the electric ball valve, such as discharge capacity, allowable flow resistance, and the diameter of the valve seat hole. If these parameters are not selected correctly, the effectiveness of the electric ball valve in controlling flow will be greatly reduced.
4、 Select the appropriate material based on the working temperature of the pipeline, and of course, the working pressure of the pipeline should also be taken into consideration.
Additionally, it should be noted that you should not rush to choose products. You should first understand the popular electric ball valve products and their performance. The best way to understand these is to contact multiple electric ball valve manufacturers, ask them to provide product catalogs, styles, etc., compare prices, and then choose the most cost-effective product. In addition to paying attention to pipeline parameters, electric valves should also pay special attention to the environmental conditions of their obligations. As the electric device in electric valves is an electromechanical equipment, its obligation status is greatly affected by its obligation environment.
Normally, electric ball valves should be used with special attention in the following environments:
1. Indoor devices or outdoor applications with protective measures;
2. Outdoor outdoor equipment that may be eroded by wind, sand, rain, sunlight, etc;
3. It has a flammable, explosive gas or dust environment;
4. Environment in humid and dry tropical regions;
5. The temperature of the pipeline medium can reach 450 ℃ or above;
6. The ambient temperature is below -20 ℃;
7. Easy to be submerged or submerged in water;
8. Environment with radioactive materials (nuclear power plants and radioactive material testing equipment);
9. Environment on ships or docks (with salt mist, mold, moisture);
10. In situations with severe vibrations; Places prone to fire;
For electric ball valves in the above environment, their electric device structure, materials, and protection methods are different. Therefore, the corresponding valve electric device should be selected based on the above obligation environment.
Functional requirements for electric ball valves
According to engineering control requirements, the control function of electric ball valves is completed by electric devices. The purpose of applying electric ball valves is to achieve non manual electrical or computer control of the opening, closing, and adjustment linkage of valves. The current application of electric devices is no longer just about saving manpower. Due to significant differences in the functionality and quality of products from different manufacturers, the selection of electric devices and the selection of accompanying valves are equally important for engineering.
Electrical control of electric ball valves
Due to the increasing demand for industrial automation, on the one hand, the application of electric valves is increasing, and on the other hand, the control requirements for electric valves are also becoming higher and more complex. So the design of electric valves in terms of electrical control is also constantly being updated. With the continuous improvement of usage requirements and the widespread application of computers in Shanghai Mingbao valves, new and diverse electrical control methods will always emerge. When considering the overall control of electric valves, attention should be paid to selecting the control method of electric valves. For example, depending on engineering needs, the control principles vary depending on whether centralized control or single unit control is applied, whether it is linked with other equipment, sequential control, or computer sequential control. The sample provided by the valve electric device manufacturer is only the standard electrical control principle, so the application department should conduct technical disclosure with the electric device consumer factory to clarify the technical requirements.