Patent ID: 8444110

Claim:
A valve arrangement comprising a flow path connecting an inlet and an outlet, a closing means arranged in said flow path, a resetting means and a first pressure in a first pressure chamber acting in a closing direction on said closing means, a pressure of said outlet and a second pressure in a second pressure chamber corresponding to a pressure of said inlet when said closing means is closed acting in an opening direction on said closing means, said first pressure chamber being connectable to the outlet via an auxiliary valve, wherein the closing means has a first opening state and a second opening state, a flow resistance of said closing means in said first opening state being larger than a flow resistance of said closing means in said second opening state, wherein said closing means comprises at least a first valve element and a second valve element, wherein said first valve element together with a first valve seat form a valve means, said second valve element together with a second valve seat form a throttling means, and the valve means and the throttling means are connected in series, wherein said first valve element is slidingly arranged around said second valve element, said second valve element protrudes through said first valve seat, and said second valve seat is formed by a ring bearing said first valve seat.