SINGLE SLIDE GATE

Claims

1. A valve containing the main part having a through hole; a passage transverse to a through hole; a damper located in the transverse passage, wherein the damper is configured to move between a position with an opening on the damper coinciding with the through opening to ensure the flow of liquid through the through opening and a position for restricting the flow of liquid through the through opening; and wherein the damper is configured to move along the transverse passage in one direction in response to a first force acting on the damper, and in the other direction in response to a second force acting on the damper.

2. A gate valve according to claim 1, characterized in that it further comprises an insert located in the main part, coinciding with the through hole; the insert is made with a plurality of holes formed thereon, wherein the gate is made with the possibility of movement along the transverse passage to control the flow of liquid through the plurality of holes.

3. A gate valve according to claim 1, characterized in that it additionally contains a drive configured to apply force to the gate valve to move the gate valve along the transverse passage.

4. A valve according to item 3, characterized in that the drive is located inside the main part.

5. A gate valve according to claim 1, characterized in that the gate contains at least one seal for limiting the flow of fluid between the through hole and the transverse passage.

6. A gate valve according to claim 1, characterized in that the gate valve comprises at least one seal configured to be supplied with energy to limit the flow of fluid between the through hole and the transverse passage.

7. A gate valve according to claim 6, characterized in that the gate is provided with an internal passage for liquid to direct liquid to supply energy to at least one seal configured to be supplied with energy.

8. A gate valve according to claim 1, characterized in that the main part is made with a first internal passage for directing liquid for the purpose of applying a first force to the gate valve for moving the gate valve along the transverse passage.

9. A gate valve according to claim 8, characterized in that the main part is made with a second internal passage for directing liquid in order to apply a second force to the gate valve in counterbalance to the first force for moving the gate valve along the transverse passage.

10. A gate valve according to claim 9, characterized in that the gate valve is movable toward a position for restricting the flow of fluid through the through hole when one of the first force or the second force applied to the gate valve is reduced.

11. A gate valve according to claim 8, characterized in that the main part is made with a second internal passage for directing gas in order to apply a second force to the gate valve in counterbalance to the first force for moving the gate valve along the transverse passage.

12. A gate valve according to claim 11, characterized in that the gate valve is configured to move toward a position for restricting the flow of fluid through the through hole when the second force is greater than the first force applied to the gate valve.

13. A gate valve according to claim 1, characterized in that the gate has a first surface and a second surface opposite the first surface, with a first seal located on the first surface and a second seal located on the second surface.

14. A gate valve according to claim 13, characterized in that the first seal and the second seal are configured to limit the flow of fluid between the through hole and the transverse passage when the gate is in a position for limiting the flow of fluid through the through hole.

15. A gate valve according to claim 13, characterized in that the first seal and the second seal are configured to limit the flow of fluid between the through hole and the transverse passage when the gate is in a position to ensure the flow of fluid through the through hole.

16. A gate valve according to claim 1, characterized in that the gate is designed to move without any mechanical connection.

17. A gate valve according to claim 1, characterized in that it further comprises a cover mounted on the main part and configured to be detachable in order to respectively allow the removal and insertion of the gate from / into the main part.

18. A method of operating a gate valve having a main part with a through hole, including applying force to the gate to move the gate along the passage in the main part transverse to the through hole, wherein the damper is configured to move along the transverse passage between a position with an opening on the damper coinciding with the through opening to ensure the flow of liquid through the through opening and a position for restricting the flow of liquid through the through opening; and wherein the damper is configured to move along the transverse passage in one direction in response to a first force acting on the damper, and in the other direction in response to a second force acting on the damper.