Four way valve for vehicle heating - has automatic non return valve allowing radiator by=pass

摘要

The valve body (11) has an entry opening (15) and an exit opening (17) joined by a passage for liquid leading to the radiator and connected by a turning gate (28). It has also a second entry opening (19) and a second exit opening (20) joined by an interior entry conduit (19a) and an interior exit conduit (20a) these conduits being used for water leaving the radiator. The two interior passages are separated by an opening (22) worked by the turning gate so that water can flow from one to the other, without entering the radiator.