Gate valve is an opening and closing member of the gate, the movement direction of the gate is perpendicular to the direction of the fluid,the gate valve can only be used for full open and full closed, can not be used for regulation and throttling.

Gate valve sealing via seat matching disc, the sealing face will overlaid metal material to increase its anti abrasion, such as 1Cr13, STL6, stainless steel etc. There are solid wedge and flexible wedge, so gate valve is divided into solid wedge gate valve and flexible wedge gate valve acc. to different wedges.