Valve sealing arrangement
AssigneeSeetru Limited
InventorsOtto Varga, Raymond Morton
Life of this patent
Estimating the term…
Abstract
A valve comprises a fluid outlet, a fluid inlet, a valve seat (103) and a valve disk (102) arranged to move relative to the valve seat to control the flow of fluid from the inlet to the outlet. The valve disk (102) comprises a body (201) and a sealing member (202), wherein the valve disk is connected to a spindle (101) via an articulating joint comprising two abutting surfaces, one of which is arranged to allow rocking motion between the surfaces providing the articulation thereby allowing the sealing member (202) to self-align on the valve seat (103). The articulating joint may be formed by an end surface of the spindle (101) abutting a ball bearing (207) located in a cavity (200) in the top of the valve disk (102).
Claims13
A valve comprising:
- a fluid outlet;
- a fluid inlet;
- a valve seat;
- a spindle having an end with an end surface thereon, the end surface being substantially flat or convex;
- a valve disk comprising a body and a sealing member, the body having a top defining a cavity, the valve disk being arranged to move relative to the valve seat to control the flow of fluid from the fluid inlet to the fluid outlet;
- and
- a ball bearing, wherein the ball bearing is located in the cavity and the cavity substantially prevents rolling of the ball bearing relative to the valve disk, the end of the spindle extends into the cavity and the end surface of the spindle abuts the ball bearing, the spindle being a loose fit in the cavity so that the valve disk can rock relative to the spindle;
- whereby the ball bearing forms an articulating joint, allowing the sealing member to self-align on the valve seat.
Dependencies are inferred from the claim text.