Введение в задвижку ножевую

Ножевые задвижки are suitable for pipelines with suspended particles, fibrous materials such as pulp, sewage, coal slurry, ash and cement mixtures and other media. Its opening and closing member is the gate, the movement direction of the gate is perpendicular to the direction of the fluid, by the fiber material can be cut knife-edge gate to cut off these media. Valve body actually does not exist in the chamber, the gate in the side guide groove lifting and lowering, and by the bottom of the lugs tightly pressed on the valve seat, such as the need to achieve a high media sealing, O-shaped sealing seat can be used to achieve bidirectional sealing. According to the driving method is divided into manual knife gate valve, pneumatic knife gate valve, electric knife gate valve.