In this paper a photovoltaic solar pumping system using a new linear actuator is presented. This linear actuator is adouble-sided flat two-phase variable-reluctance linear stepper motor that moves a piston-type water pump with the help of arope, a pulley and a counterweight. The entire actuator pump ensemble is controlled by a simple electronic unit that managesthe electric power generated by a photovoltaic array. The proposed system is suitable for rural communities in developingcountries because it is reliable, affordable and easy to maintain.