Ndi chitukuko cha chuma padziko lonse ndi kusintha kwa mlingo wa mafakitale, ndi okhwima kulamulira chofunika magawo mafakitale, mafakitale ochulukirachulukira akuyamba kutsata ulamuliro basi.Adzagwiritsa ntchitomagetsi actuator butterfly valve, valavu ya mpira wamagetsi wamagetsi, valavu yowongolera magetsi, valavu yamagetsi ya diaphragm, valavu yowongolera pneumaticndi zina zotero.Komabe, kukhazikitsa zowongolera zodziwikiratu zomwe zimakhudzidwa kwambiri ndi magawo ndiwoyambitsa.

Pali mitundu iwiri yofunikira ya opaleshoni ya valve yomwe muyenera kuganizira poganizira zofunikira za automation, ndiko kuti, kusankha kwa actuator.

Chimodzi ndi makina opangira ma angular-stroke actuators, monga ma quarter-turn electric actuators, single-acting pneumatic actuators, ndi ma pneumatic actuators awiri.Ma actuators awa amazungulira madigiri 90 malinga ndi torque yofunikira.Imapezeka ndi valavu ya mpira, valavu ya butterfly, valavu yachipata, kuphatikiza ma valve a globe.

Quarter-turn electric actuator torque mpaka 4000Nm, ndipo imatha kuyendetsedwa pamanja.Pali 4 zitsanzo kwa inu kusankha, ndicho kusintha mtundu, mtundu kusintha, mtundu wanzeru, mtundu kuphulika-umboni ndi wanzeru Bwezerani mtundu, angagwiritsidwe ntchito m'madera osiyanasiyana.Mtengo wotsika mtengo, wotsika mtengo kwambiri, umakondedwa kwambiri pamsika.

Pneumatic ndi hydraulic actuators ndizofala kwambiri chifukwa safuna mphamvu ndi mawonekedwe osavuta, ntchito yodalirika, kusinthasintha kwachangu kumathamanga kwambiri, zomwezo zingagwiritsidwe ntchito ndi valve ya mpira ndi valavu ya butterfly, kotero mundawu ndi waukulu kwambiri.

Winawo ndi valavu yozungulira, yomwe imadziwikanso kuti stroke yowongoka.Ma valve awa amatha kukhala tsinde lokweza losazungulira kapena tsinde losasunthika, zomwe zimafuna kusinthasintha kowonjezera kuyendetsa valavu pamalo otseguka kapena otsekedwa.Mavavu otembenuka angapo amaphatikiza kudzera pa Valve (valve yapadziko lonse lapansi), valavu yachipata, valavu yachipata cha mpeni ndi zina zotero.

Pakati pawo, makina opangidwa ndi madzi othamanga kwambiri kapena opangidwa ndi mzere nthawi zambiri amagwiritsidwa ntchito pogwiritsa ntchito valve (globe valve) ndi valve valve, chifukwa cha mawonekedwe ake osavuta, ntchito yodalirika, n'zosavuta kukwaniritsa njira yolephera yogwira ntchito.Nthawi zambiri, ma multi-turn actuators amagetsi amagwiritsidwa ntchito kuyendetsa ma valve a zipata ndi globe, ndipo ma hydraulic kapena pneumatic actuators amangoganiziridwa ngati palibe mphamvu.

Kapenanso, ma silinda a pneumatic kapena hydraulic kapena makina opanga mafilimu okhala ndi mzere wotulutsa amathanso kuyendetsa valavu.