1.}} valv bilong wok ekting
Ol dispela solenoid i gat wanpela koil i gat wanpela koil i opim valv long magnet long wanpela stretpela eksen, na dispela i mekim na seft na sia bilong valv i senis. Dairekt-ekting solenoid volv i yusim eneji i kamap long magnetik fil bilong solenoid long operetim valv bilong em long operetim valv bilong em long wok long valv bilong em long wok long valv bilong em long wok long valv bilong em long wok long valv bilong em, wanpela mekanik spring i go bek long valv i go bek long valv bilong en.
2.} Pailot-opereted valv
In pilot-operated valves, the plunger opens up the pilot opening while the pressure causes the valve to open and close. In spite of the fact that pilot-operated valves require less electrical energy to work, need to keep up full power with a specific end goal to stay in an open state, and they perform at a slower rate than direct-acting solenoids. Direct-acting valves just need full power when opim valv, long wanem, ol inap holim nating posisen bilong ol taim ol i wok long liklik pawa.
3.tupela valv
Dispela em i wanpela kain solenoid valv i save kamap planti taim. Tupela-wei valv i gat tupela port, we ol i save yusim narapela rot long larim ron na tu pasim em i go aut. Wanpela tu-we valv i ken "nomal open" o "nomal pasim" long wok bilong en. valv bilong karent i save pasim valv bilong em long wok bilong em long wok bilong em. lektrik pawa i pas, valv i opim gen otomatik long nomol stet bilong em{{6} Wanpela solenoid valv i pas nomol i stap pas yet inap long wanpela pawa sos i mekim em i op.
