Abstract: A magnetic valve for a fluid-controlled heating and/or cooling installations has a valve housing, an electromagnetically switched valve member which in a first fixing position makes a connection between an inlet conduit and an outlet conduit and in a second switching position blocks the connection, a valve shaft provided with an armature and connected movably to the valve member, the valve shaft having a side which faces the valve member and is provided with a unit for slowing down a speed of the valve shaft upon closure of the valve member, the valve housing and the valve member being arranged so that a flow direction of a fluid around the valve member is opposite to a closing direction of the valve member.