Heat exchanger valve

A heat exchanger valve comprises a housing (2) having an inlet (3), an outlet (4), a valve seat (5) on a valve seat member (24) between the inlet and the outlet, a valve element interworking with the valve seat (5) and having a valve element axis, and a preset device having a bushing (9), the invention relates to a valve element (1) comprising a housing (2) and a bushing (9) which is rotatable about the valve element axis and comprises an opening arrangement which interacts with a mating channel in the housing (2), the bushing (9) having a conical form which interacts with a conical mating surface (13) in the region of the opening arrangement, and a distance being provided between the bushing (9) and the valve seat member (24). Such a heat exchanger valve should allow precise presetting over a wide range. To this end, the bushing (9) comprises at least two recesses (14) in an edge (10) facing the valve element member (24), each of said recesses (14) forming an opening (25). 一种热交换器阀包括：具有入口(3)、出口(4)的壳体(2)、在所述入口