Rubber flap check valve is an important fluid control equipment, widely used in water supply and drainage systems, petrochemical and food and pharmaceutical fields. Its unique design and working principle ensures the one-way flow of the medium, effectively preventing the backflow of the medium, to ensure the safe operation of the system.

First, the basic structure and composition

Rubber flap check valve is mainly composed of valve body, valve cover, valve flap and spring and other components. The valve flap is made of nitrile rubber and steel plate pressed by high temperature, which has the characteristics of scouring resistance and good sealing performance. The valve flap and the valve seat closely fit, forming a reliable sealing structure.

Second, the working principle

When the fluid flows from the inlet to the outlet of the valve, the fluid pressure pushes the rubber flap to bend upwards and fit on the valve opening, so that the fluid passes through smoothly. When the fluid pressure decreases or reverse, the rubber flap is quickly closed under the action of the spring or fluid pressure to prevent the medium from flowing backwards. This rapid response mechanism ensures the high efficiency and safety of the valve.

Third, features and advantages

Rubber flap check valve has the advantages of small submission, light weight, sturdy and wear-resistant. It has good sealing, flexible action, and the valve flap can be used many times with long service life. In addition, the valve structure is simple, easy to install and use, suitable for a variety of media and working environment.

Fourth, the field of application

Rubber flap check valves are widely used in water supply and drainage systems, petrochemical, food and pharmaceutical industries at the exit of the pipeline, effectively preventing the medium from backflow, to protect the safety of equipment and pipelines. At the same time, in the fire fighting system, rubber flap check valve also plays an important role in ensuring the stable supply of fire fighting water.

Fifth, selection and installation

In the selection of rubber flap check valve, according to the media flow, pressure and temperature and other conditions, select the appropriate type and size of the valve. Installation, should ensure that the valve is installed horizontally, flange connection is firm, to avoid the valve in the work of loosening or leakage.

In summary, as an important fluid control equipment, rubber flap check valve plays an important role in many industries with its unique structure and excellent performance. With the continuous progress of technology and the continuous expansion of application areas, rubber flap check valve will certainly play a more important role in the future.