Atauff Hydraulic Store high pressure 3-way block type ball valve [AHS3WBV] are units which serve to shut off the flow of an operating medium in both direction. By turning the control spindle the flow is diverted, according to the ball bore, and the opposite side is shut off leakage free. These 3 way ball valves are not designed to be used as flow control valve, therefore they should always be either fully open or fully closed to avoid damaging the sealing cups.