2024-09-30

The characteristics and technical parameters of the double-leaf check valve

The opposed-end check valve is suitable for various pipelines with nominal pressure ranging from PN1.0 MPa to 42.0 MPa, Class 150 to 2500; nominal diameter ranging from DN12 to 1200 mm, NPS 1/2 to 48; and working temperatures ranging from -196 to 540 °C. It is used to prevent the backflow of the medium. By selecting different materials, it can be applicable to various media such as water, steam, oil, nitric acid, acetic acid, strong oxidizing media, and urea.

2024-09-30

The definition and classification of valves

A valve is a control device for fluid pipelines. Its basic function is to connect or cut off the flow of medium in the pipeline, change the direction of the medium's flow, regulate the pressure and flow of the medium, and protect the normal operation of pipeline equipment. Valves are usually composed of valve body, valve cover, valve seat, actuating element (valve disc, gate, butterfly plate, diaphragm, etc.), driving mechanism (valve stem and the driving device that moves it), sealing element (packing, gasket, etc.) and fastening parts, etc.

2024-09-30

The advantages of using the station's stop valve

Applicable media: water, steam, etc. non-corrosive media. Compared with other valve products, the characteristics of power station valves are high temperature and high pressure, self-sealing design, and the higher the pressure, the more reliable the sealing. Due to the performance and technical characteristics and the special working conditions, the product also has characteristics that other products cannot replace.

2024-09-30

The working principle and installation method of the check valve

Check valves are used in pipeline systems. Their main functions are to prevent backflow of the medium, prevent the pump and its driving motor from reversing, and release the medium in the container. Check valves can also be used on pipes that supply supplementary systems with pressure that may rise above the main system pressure. Check valves can be applied to various media pipelines depending on their material. Check valves are installed on pipelines and become one of the fluid components of this complete pipeline. The valve disc's opening and closing process is affected by the transient flow state of the system in which it is located; conversely, the closing characteristics of the valve disc have an effect on the fluid flow state.