Chigwa cha solenoid ndi mtundu wa chipangizo cha electroticnomenical chomwe chimagwiritsidwa ntchito kuwongolera madziwo, monga mpweya, madzi, kapena gasi. Muli ndi solenoid, yomwe ndi coil yamagetsi yowoneka bwino, ndi makina a Valumu. Pakadali pano zamagetsi zimagwiritsidwa ntchito kwa solenoid, zimayambitsa minda yomwe imasuntha kapena masamba, kutsegula kapena kutseka valavu kuti ichotse mayendedwe a madzi.
Chigwa cha Pneumic Sheloid ndi mtundu wapadera wa solenoid valale yopangidwa kuti igwiritsidwe ntchito ndi ma pneumatititic dongosolo, zomwe zimaphatikizapo kugwiritsa ntchito mpweya. Kusiyana kwakukulu kwakhala mu mtundu wamadzi omwe amayenera kuwongolera. Ngakhale valavu ya solenoid ya solenoid ikhoza kugwiritsidwa ntchito pamadzi ambiri, valavu yama pneramoic solenoid imakonzedwa mwachindunji mpweya kapena mpweya wina wothinikizidwa.
Mwachidule, mavuvu onse a chibayo a Soumitic solenoid ndi ma valves, koma osati ma valve onse a soum solenoid valves. Kusiyanitsa kumakhazikitsidwa pa ntchito yofunsidwa ndi mtundu wamadzi (wopanga madzi (wotsika pansi kapena apo) valavu idapangidwa kuti ithe kuwongolera.
