Chigwa cha solenoid chimakhala chida chofananira ndi valavu ya solenoid momwe imawongolera mayendedwe a zakumwa kapena ma galling ngati valavu yoposa imodzi imafunikira kugwiritsidwa ntchito kapena kulamulidwa. Izi ndikulumikiza mavuvu a solenood limodzi ku banki ya valavu. Zigwa zilizonse zimakhala ndi minda yofunikira yofunika, kasupe ndi kasupe yemwe amaima ndikuwongolera madilesi a media kudzera mwa zolaula.
