Different pig launchers are intended to permit the consecutive sending off of pigs and circles. Utilizing our programmed numerous pig sending off framework a progression of pigs can be sent off into a pipeline without having to more than once depressurise and once again compress after each pig send off. The cycle can likewise be controlled from a far off area. This is especially significant on automated stages like seaward stages and harsh help applications. Circle discharge fingers on circle launchers are utilized to control the arrival of a progression of circles into a pipeline.