Products Details

Welded check valve is a key valve used to prevent media counterflow, widely used in petroleum, chemical, food, pharmaceutical, construction and water supply system and other fields. Its working principle is to control the one-way flow of the medium through the automatic opening and closing of the valve disc. When the medium is flowing forward, the valve disc opens under the action of fluid pressure to allow the medium to pass through; When the medium flows in the opposite direction, the valve disc will be closed to prevent reverse flow.

There are various types of welded check valves, including lift, swing, butterfly, etc., which vary according to structural characteristics and installation requirements. For example, swing check valves are suitable for large diameter and low pressure occasions, while butterfly check valves are suitable for low pressure and large diameter occasions. The installation position of welded check valves is relatively flexible and can be installed in horizontal or vertical pipe, but some types such as lifting vertical disc check valves should be installed in vertical pipe.

In industrial applications, welded check valves are designed to take into account the characteristics of the medium and operating conditions to ensure the tightness and durability of the valve. For example, some valves may require special materials or coatings to resist aggressive media. In addition, welded check valves need to be designed with ease of installation and maintenance in mind to reduce maintenance costs and improve system efficiency.

It is worth noting that the welding check valve needs to pay special attention to its directionality during installation and use, to ensure that the direction of the medium flow is consistent with the direction of the arrow marked on the valve body, to avoid improper installation of the valve can not work normally or damage. In addition, the maintenance of welded check valves is relatively simple, usually just by checking their sealing performance regularly and cleaning the inside of the valve.

In short, the welding check valve is an important industrial valve, and its correct selection, installation and maintenance are crucial to ensure the normal operation and safety of the pipeline system.