JASMIN ENGINEERS'S PC Series design transformer spool valve is intended to turn joystick usefulness on gear, for example, backhoes. At the point when administrators move starting with one machine then onto the next, they can set-up the joystick controls to work in a recognizable configuration. This diminishes re-preparing time, limits mishaps brought about by new controls and keeps away from the need to switch hoses. The example transformer is hand worked and has four channel ports and four source ports. It gives 8-way, two position control of pilot signals.