With the acceleration of China’s urbanization process, the demand for various infrastructure construction continues to increase, among which, check valve as an important part of the hydraulic system, plays a pivotal role in ensuring the safe and stable operation of the hydraulic system. China, as an important industrial city in northern China, has many excellent check valve manufacturers, which provides a rich choice of check valve models for urban construction in China. This article will provide you with a detailed analysis of China’s check valve models to meet various engineering needs and help modern urban construction.
Overview and function of check valve
Check valve, also known as check valve, backflow prevention valve, is an automatic valve to prevent the backflow of the medium. Its working principle is to rely on the pressure difference of the medium to open the valve, when the medium is flowing forward, the valve opens; When the medium flows in the opposite direction, the valve closes. Check valve is widely used in water supply, drainage, petroleum, chemical, power stations, ships and other fields, is an important equipment to prevent media backflow, protect equipment and pipeline safety.
Second, China check valve type and characteristics
Swing check valve is a simple structure, easy to open and close the valve, mainly suitable for small and medium diameter, low pressure difference applications. It is characterized by no gap between the disc and the seat, which can effectively prevent the backflow of the medium. In China’s check valve manufacturers, swing check valve is a more common model.
The lift check valve is a valve with the disc up and down, and has a large flow capacity. It is mainly suitable for applications with large caliber and high pressure difference. It is characterized by a gap between the disc and the seat, when the medium is flowing forward, the disc rises and the valve opens; When the medium flows backward, the disc drops and the valve closes. China’s check valve manufacturers with superb manufacturing technology, making the lift check valve more superior in performance.
3. Spherical check valve
The spherical check valve is a kind of valve using the ball as the valve disc, which has the characteristics of strong flow capacity and small wear of the seat. Mainly suitable for high temperature, high pressure, strong corrosive applications. China’s check valve manufacturers rely on advanced production technology, making the spherical check valve more stable and reliable in performance.
4. Double disc check valve
Double disc check valve is a structure with two discs, with small opening and closing torque, good sealing performance and so on. Mainly suitable for urban water supply, drainage and other low-pressure difference, large flow applications. China’s check valve manufacturers through optimization design, so that the double flap check valve to ensure the performance at the same time, more beautiful and practical.
Third, the application case of China’s check valve model in urban construction
1. A municipal sewage treatment plant
The city sewage treatment plant adopts the swing check valve produced by a Chinese enterprise, which effectively prevents the backflow of the medium in the sewage pipe and ensures the normal operation of the sewage treatment plant.
2. A city water company
In the water supply system of the city water company, the lifting check valve produced by a Chinese enterprise is used to ensure the safe and stable operation of the water supply system and provide high-quality drinking water for the public.
Iv. Conclusion
In summary, with a rich selection of models and excellent performance characteristics, China check valve models meet various engineering needs and provide strong support for the construction of modern cities in China. In the future, with the continuous advancement of China’s urbanization process, the application of check valves in urban construction will be more extensive, and China’s check valve manufacturers will continue to play an important role and contribute more to China’s urban construction.
Post time: Sep-22-2023
