| 摘要 |
The present invention relates to a gate valve. The gate valve comprises: a valve housing (10) comprising a connection hole (11) and a flange (12) formed on the front surface and the rear surface thereof, a middle hole formed therein, and a guide bar (13) and a bearing hole (13a) formed on both sides of the inside thereof; a valve body (20) disposed in the valve housing to be moved vertically, and tightly pressed on an inner wall of the front surface or the rear surface of the valve housing by a pressing means to open and close the connection hole; and a bearing unit (30) mounted on both sides of the valve body. The gate valve in accordance with the present invention can correct valve bending, markedly improve durability of an O-ring of a sealing disk, improve vacuum efficiency of a chamber by perfect sealing, and adjust a vacuum level. Also, since the gate valve tightly attaches and separates a sealing surface by a linker operation, noise can be reduced, and a number of linkers can be adjusted to prevent noise and increase durability. |
