Function of the Knife edge gate valve can be automatically understood by its name only. Simply Knife edge gate valve are used to allow the flow of thicker or abrasive, viscous mediums. Function of the Knife edge gate valve is to provide unobstructed flow of the medium. For the making of smooth flow it contains sharp edge knife, effectively cut through the media to allow the unobstructed flow.
In other words, we can say that it is also used to prevent the damage to the system. In some system, partial flow can damage the pipelines or systems. So in order to avoid damage of powerful currents of media, Knife edge gate valves are used. It avoids the wear and tear on the gate of the valves and helps to system to operate smoothly for routine fluid transportation.