The directional control valve 13001 comprises a housing, two centering springs that control the piston, and a driving wheel magnet. The directional control valve has three positions. The actuating magnet operates with DC voltage. For AC power, either plug into the plug socket of the solenoid or into the electrical socket with the integrated rectifier. The cable plug can be rotated 90°. By loosening the nut can rotate or switch 360 degrees, the electromagnet will. Screw in pressure resistant anchor pipe. Thus, the magnetic coil can be replaced without opening the pressure chamber. In case of interference or power failure, the directional valve can be adjusted by manual emergency operation, with pressure up to 25 bar in the T-tube.