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Valavu yoyendetsa ndege ndi yofananira kwambiri, yomwe imakhazikika pamalingaliro a solenoid ku Valve: Mphamvu ikayamba, kasupe imasindikiza pachimake pampando, ndikupangitsa valavu kuti ithetse. Coil ikapatsidwa mphamvu, mphamvu yamagetsi yomwe imapangitsa kuti ithetse mphamvu ya kasupe ndikukweza maziko, ndikutsegula valavu. Kufalikira kwa solenoid Kukula kwa coil kumapeto kapena kukula kwa mphamvu yamagetsi kumakhudza kupindika kwamphamvu komanso kutsegulira kwa valavu, ndipo kutseguka) ndi chinsinsi.
Kuchita mwachindunji mogwirizana ndi valavu ya solenoid kumatuluka pansi pa mpando. Mpamwamba amayenda pansi pampando, ndipo malangizo a mphamvuyi ndiofanana ndi mphamvu yamagetsi, ndi chosemphana ndi gulu la masika. Chifukwa chake, ndikofunikira kukhazikitsa zochulukirapo komanso zosachepera zochepa zomwe zikugwirizana ndi malo ogwiritsira ntchito (coil masiku ano) pogwirira ntchito. Zofananira solenoid valavu ya Drey imatsekedwa (NC, nthawi zambiri imatsekedwa) pomwe mphamvu yazimitsidwa.
Ngati wocheperako ndi wopukutira slumeetry ndi lathyathyathya, mphamvu yamagetsi idzagwa kwambiri pamene kusiyana kwa mpweya kumawonjezeka, kupangika Valve kukhala wowongolera. Yokhayo yokhayo yotsekemera ndi yopanda tsitsi yokha imapangidwa kukhala zopangidwa mwapadera, kuti tikwaniritse bwino pakati pa gulu la masika ndi mphamvu yamagetsi yogwirizana ndi zinthu zosiyanasiyana. Kunja kwa kuyimilira kumapangidwa ngati chulu, ndipo pamwamba pa kuchuluka kwakonzedwa ngati chimbale chokwanira. Mphamvu ikayamba, mphamvu ya masika itatseka valavu. Chisindikizo chomwe chimaphatikizidwa pansi pa wophatikizira chimawonetsa kuti valavu imasungunuka.