PRESSURE CONTROL VALVE

摘要

Disclosed is a pressure control valve comprising a housing (2) that has a reference pressure connection (3) and a reference pressure chamber (4), a preliminary pressure connection (5) and a preliminary pressure chamber (6), and a control pressure connection (7) and a control pressure chamber (8) which cooperate with a control member (9) that can be moved in the axial direction within the housing (2) in such a way that a desired control pressure can be adjusted between a preliminary pressure at the preliminary pressure connection (5) and a reference pressure at the reference pressure connection (7). A driving device (10) is provided which acts on the control member (9), at least one first sealing device (11) is provided which seals the reference pressure chamber (8) against the control member (9), at least one second sealing device (12) is provided which seals the preliminary pressure chamber (6) against the reference pressure chamber (7), and at least one third sealing device (13) is provided which seals the control pressure chamber (7) against the preliminary pressure chamber (6). The second sealing device (12) includes a second sealing element (15) that is positively arranged within the housing (2) and/or within the control member (9) while being disposed at a distance from the control member (9) in the radial direction.