Pressure valve, particularly pressure relief valve, has outflow channels, which are blocked against inflow channel by valve seat, where control surface expanding in direction towards outflow channels is controlled on valve seat surface

摘要

The pressure valve (1) has a bushing (2) having an axial piston bore (4), where a piston is arranged in the piston bore in axially movable manner. An inflow channel (8) is formed in the bushing coaxial to the piston bore, where the bushing has a valve seat surface (12) narrowing in direction to the inflow channel for a valve seat (14) with the piston. Outflow channels (10) are blocked against the inflow channel by the valve seat, where a control surface (22) expanding in direction towards the outflow channels is controlled on the valve seat surface.