Siemens Building Technologies Ag

Kunibert Neu

Martin Wetzel

Erwin Hochstuhl

Guntram Erbe

Karl-Anton Wissler

The invention relates to a double valve with a valve housing (), for housing two double-headed actuators (), whereby the double head actuators have differing head diameters () and the flow of a fluid through the both actuators () in the valve housing () is identical. The valve housing () is of one-piece design and a drive function for both actuators () is not connected to the inner volume of the valve housing () with fluid flowing therein.

Double valve

The invention describes a shut-off valve having a double seat with an upper valve seat ( ) of a diameter D and a lower valve seat ( ) of a diameter D different to the diameter D (D <D ), and a double-head setting member ( ) which in the closed condition prevents passage therethrough of a medium which is to be sealed off. The annular surface (D &minus;D ) of the double-head setting member ( ), which is acted upon by the medium to be sealed off and affords a closing force, and is formed from the outside diameter D and the inside diameter D , is divided by a diameter D (D <D <D ) into at least two regions ( ) in order to distribute the closing force to the upper valve seat ( ) and the lower valve seat ( ).

Growing community of inventors

Munich, Georgia

Kunibert Neu