It is used in diesel locomotives of the TEP70 BS series. The MN 250/160 motor-pump (with valve) is a hydraulic machine that can operate in two modes: unregulated pump hydraulic motor The valve box is designed to protect against overloads of the hydraulic circuit, which includes the pump-motor, and also to prevent failure of the motor-pump itself. The MN 250/160 (with valve) and 1 MN 250/160 (without valve) motor-pumps are used in URB 2A-2 drilling rigs on the rotator (with valve) and on the transfer case (without valves).
