CONTROL VALVE

• US 20130213497A1
• Filed: 10/25/2011
• Published: 08/22/2013
• Est. Priority Date: 11/03/2010
• Status: Active Grant

• Current Assignee: Protego (USA), Inc.
• Original Assignee: Leinemann GmbH & Company GK
• Inventors: Helmsen, Frank, Kirchner, Tobias
• Granted Patent: US 9,360,127 B2
• Time in Patent Office: Days
• US Class Current: 137/533
• CPC Class Codes: F16K 1/36 Valve members for double-seat valves F16K1/44 ; for butterfly valves F16K1/222, F16K1/223
• CPC Class Codes: F16K 1/44 Details of seats or valve members of double-seat valves
• CPC Class Codes: F16K 17/12 weight-loaded
• CPC Class Codes: Y10T 137/7909 Valve body is the weight

Abstract

The invention relates to a control valve having a valve seat and a valve disk (1), which can be moved from a closed position, in which the valve disk (1) rests on the valve seat and the relief valve is closed, into a through-flow position, in which the relief valve is open, wherein the valve disk (1) comprises a valve disk surface (2) having a peripheral surface rim (4) and a normal which is perpendicular to the valve disk surface (2), runs through the centre of gravity of the latter and defines a longitudinal axis L. A brim is arranged on the surface rim (4), wherein said brim has a first part (6) which projects beyond the valve disk surface (2) in the axial direction with respect to the longitudinal axis L and lies a second part (8) which adjoins the first part (6) and comprises a section that is radial with respect to the longitudinal axis L.

Claims

1. A switch valve with a valve seat and a valve plate that can be moved from a closed position, in which the valve plate is in contact with the valve seat and the switch valve is closed, into a through-flow position, in which the switch valve is open,

wherein the valve plate comprises

a valve plate surface with a circumferential surface edge, and a perpendicular, which runs vertically to the valve plate surface and through a centre of gravity of the valve plate surface, said perpendicular defining a longitudinal axis L, and

wherein a brim is arranged at the surface edge, whererin the brim comprises

a first part, which protrudes from the valve plate surface in an axial direction relative to the longitudinal axis L, and

a second part that extends from the first part, the second part comprising a radial section relative to the longitudinal axis L.

2. The switch valve according to claim 1, wherein the second part of the brim has a brim edge that faces away from the first part, the brim edge protruding from the radial section of the second part in an axial direction relative to the longitudinal axis L.

3. The switch valve according to claim 1 wherein, the first part of the brim stretches at an angle towards the longitudinal axis L.

4. The switch valve according to claim 1 wherein the first part of the brim has at least one gap.

5. The switch valve according to claim 4, wherein the second part of the brim has a cross section in the shape of a wing panel with respect to a radial section relative to the longitudinal axis L.

6. The switch valve according to claim 1 wherein the valve plate surface is circular.

7. The switch valve according to claim 1 wherein the switch valve is configured so that the valve plate is only held in the closed position by the weight force acting on it and is only moved out of the closed position by pressure acting on the valve plate surface.

8. The switch valve according to claim 3 wherein the angle ranges from 10 to 15 degrees.

9. The switch valve according to claim 3 wherein the angle ranges from 5 to 25 degrees.