Detailed explanation of valve selection and application in Brazilian hydraulic engineering

The selection and application of valves in hydraulic engineering is very important, which is directly related to the normal operation and safety of hydraulic engineering. Valve is the core of the control device in hydraulic engineering, and the selection of valve affects the daily efficiency and emergency safety.

The importance of selection

Hydraulic engineering plays a vital role in regulating river runoff, and its significance is self-evident. In this system, the valve is the core device to control the river runoff, and its selection is particularly important. In the daily condition of the valve, it needs to ensure that it is opened in place to minimize water loss in the pipe section; In the event of an emergency, the valve must be able to close quickly and reliably. Therefore, in hydraulic engineering, the selection of valves is not only related to the daily operation efficiency, but also directly affects the safety performance in emergency situations.

Basic principles of selection

In the water supply system, the basic principle of valve selection is to select those products with high quality, stable performance and strong applicability. Choose proven products to improve system stability. For those valve types that do not perform well in long-term use, it is recommended to phase out in favor of newer, more technologically advanced valves.

Common valve types and selection points

Globe valve selection

In the water supply system, the globe valve is a common type of valve. Quality, performance and applicability should be considered when selecting a model. High quality, stable performance and strong applicability of the globe valve, can ensure the stable operation of the water supply system. Valve performance and design are considered from a variety of technical aspects. At the same time, with the continuous development of technology, new types of globe valve products continue to emerge, the optimal selection of these products, can further improve the performance and efficiency of the water supply system.

Gate valve selection

When choosing a gate valve, consider size, sealing material, and operation to achieve energy efficiency. First, the size of the gate valve should be determined according to the size of the pipe and the fluid characteristics. Secondly, attention should be paid to the type of valve seat and sealing material to ensure good sealing performance. In addition, the operation mode and driving mechanism should be considered to meet the actual use requirements. At the same time, anti-corrosion performance is also a factor that cannot be ignored, especially in the use of gate valves in corrosive environments. In summary, reasonable selection will directly affect the performance and service life of the gate valve.

Butterfly valve selection

When choosing a butterfly valve, we need to ensure the sealing effect and pay attention to the balance between price and performance. When the butterfly valve is applied in the pipeline network, there are often problems such as "lax closure, poor working stability, frequent maintenance demand", and its service life is relatively short. However, compared with the same specifications of the gate valve, the price of the butterfly valve is usually more close to the people. Therefore, when choosing the butterfly valve, we need to consider the following key factors: the use effect of the butterfly valve, the consideration of the vertical and horizontal butterfly valve, the choice of the eccentric butterfly valve, the contrast between the soft seal and the metal seal, etc.

Check valve selection

When selecting check valve, ensure check function, pay attention to sealing performance and structural form. First, pay attention to the sealing performance of the check valve, as this is the key to ensuring its proper operation. Second, the operating environment and service conditions are also important considerations in selection, which will affect the service life and performance of the check valve. In addition, the price factor can not be ignored, we need to meet the performance and quality requirements on the premise of seeking the highest cost performance.