2 position oba 2 way solenoid valves mu budde obutuufu ziggalwa, direct acting solenoid valves era tezeetaaga minimum differential pressure okukola. Nga bwe kiragibwa mu kifaananyi wansi, koyilo bw’eba de-efunye amaanyi (ekifaananyi kya kkono), plunger ewummulira ku mulyango omukulu era n’ekwatibwa mu kifo kya empalirizo ya plunger spring, okusiba vvaalu. Koyilo bw’efuna amaanyi (ekifaananyi kya ddyo), solenoid esitula plunger era n’esobozesa ekintu ekikola okukulukuta okuyita mu mulyango. Enkola y’okukola n’obulagirizi bw’okukulukuta biragiddwa mu langi ya kakobe mu kifaananyi.
