ONE. Product Overview

Knife gate valve is also known as knife gate valve, knife slurry valve, its opening and closing parts are gate, the direction of the movement of the gate is perpendicular to the direction of the fluid, by cutting fiber material blade shaped gate to cut off the medium, The gate has two sealing faces. The most common type of gate valve has two sealing faces that form a wedge. The wedge Angle varies with valve parameters and is usually 50. It can also be made into a gate that can produce slight deformation to improve its technology and compensate for the deviation of sealing face Angle in the process of processing. This gate is called an elastic gate. In fact, there is no chamber in the valve body, the gate in the side guide groove lifting, and by the bottom of the lug pressed on the seat, if you need to achieve a higher medium sealing, you can choose O seal seat to achieve two-way sealing. Knife gate valve has a small installation space, low working pressure, not easy to accumulate debris, low price.

When knife gate valve is closed, sealing surface can only rely on medium pressure to seal, that is, rely on medium pressure to press the sealing surface of the gate to the other side of the seat to ensure sealing surface, this is self-sealing. Most knife gate valves are force-sealed, that is, when the valve is closed, the gate is forced to the seat by external force to ensure the sealing surface sealing. This type of valve in the pipeline should generally be installed horizontally.

Two. product performance characteristics

1, lifting gate sealing surface, can scrape off the sticky material on the sealing surface, automatic cleaning debris.

2, stainless steel gate can prevent corrosion caused by sealing leakage.

3, hard full gold sealing surface can ensure the wear resistance and requirements of the seal.

4, There is no groove on the sealing surface of valve body, which can ensure flexible opening.

5, short structure length is short, can save raw materials, installation space also effectively support pipeline strength.