Switching valve for heating system with outlet and two inlets for heating medium

摘要

The heating system is switched e.g. between space heating and water heating by a valve with a housing (12) containing one outlet (22) and two inlets (18,20), one of which is selectively connected to the outlet by operation of valve bodies (27,29) under an electromagnetic control member (50). The valve bodies, located in the two inlets, are each connected to an arm (42,44) of a two-arm lever (40). One of the arms (42) is connected to the control member. In the open position, heating medium flows over the valve bodies. The control member has a movable pin (52) which is linked to the outer free end of the lever. The valve bodies are formed as pistons (28,30) which are guided in cylinders (24,26).