Are knife gate valves the same as knife gate valves? What are the differences in their structures

    Knife Gate ValveandKnife type gate valveBoth are valve products widely used in various industrial pipeline systems, and due to their similar names, they are often misunderstood as the same type. In fact, there are significant differences between knife gate valves and knife gate valves in terms of structure and usage characteristics. This article will provide detailed explanations from these two aspects and offer recommendations for selection.

Electric fluorine lined knife gate valve PZV943F

Knife gate valve, also known as linear motion valve, is a blade shaped steel plate that can slide up and down as its closing component. The opening and closing of the valve is achieved through the lifting motion of the knife gate, without a threaded wedge structure. Its advantages are simple structure, no dead corners, long service life, especially suitable for conveying media containing fiber particles. However, due to the reliance on the contact between the knife gate and the valve seat for sealing, the pressure bearing capacity is relatively limited.

Knife gate valves belong to wedge gate valves, and their sealing components are a single wedge-shaped blade structure. The blade can move up and down along the inner wall of the valve body, and can be opened and closed by wedging the blade into the valve seat. This structure provides better sealing performance for knife gate valves and can be used under high temperature and high pressure conditions. However, knife gate valves are more sensitive to the medium and are priced higher than knife gate valves.

Umbrella gear plum blossom knife gate valve

From the above introduction, we can conclude that although knife gate valves and knife gate valves both have the word "knife", their structural forms and usage scenarios are clearly different and cannot be confused. When selecting, appropriate valve products should be selected according to the actual situation of the pipeline. It is important to correctly understand the performance differences of different valves in order to fully utilize their functions.