Valve e ne e sebelisetsoa ho laola ho sisinyeha le ho koala ha actuator ka mahlakoreng ka bobeli ka ho lemoha ho theoha ho laoloang ha mojaro o sa phonyoheng o huloang ke boima ba oona, kaha valve ha e lumelle cavitation leha e le efe ea actuator. Ha e na maikutlo ho khatello ea morao 'me ka hona e sebelisoa moo li-overcenters tse tloaelehileng li sa sebetseng hantle taolong ea mojaro, ho lumella khatello e behiloeng ke tsamaiso hore e sebelisoe ho sebetsa li-actuator tse' maloa ka letoto. Likhokahano tsa flange li lumella valve hore e kenngoe ka ho toba ho actuator.

Li-valve tsa BOST tsa letoto ke li-valve tse habeli: li etsa mosebetsi oa ho tšehetsa le ho laola ho theoha ha mojaro ka mahlakore a mabeli. Li-valve tse peli tse hanyetsanang li sebelisoa lits'ebetsong tse nang le meroalo e bilirectional eo ho hlokahalang ho netefatsa botsitso boemong ba ho sebetsa le ho laola motsamao oa bona  li-valve ke li-valve tse nang le flangable, ke hore, li ka sebelisoa ka ho toba ho actuator (ka kakaretso ke hydraulic cylinder). Ka ho phunyeletsa mela e ka morao ho tloha ho cylinder e hokahane le mohala o laoloang, o feptjoa karolong ea ho fana ka phallo ea mahala ka li-valve tse peli tsa ho hlahloba. Li-valve tsa Counterbalance ke li-valve tse tsamaisoang ke lifofane. Ho matlafatsa mohala ka lehlakoreng le leng le le leng ho mojaro, mohala oa sefofane o sebetsa 'me o laola ho bula karolo e itseng ea moeli oa ho theoha ho lumella taolo ea motsamao esita le ka pel'a meroalo ea khoheli le ho qoba ketsahalo ea cavitation. Ka lebaka la karolelano ea ho fokotsa pakeng tsa mohala oa mojaro le mohala oa sefofane sa hydraulic (pilot ratio), khatello e hlokahalang ho bula li-valve e tlase ho feta khatello ea ho beha. Belofo e thibelang metsi habeli e ka boela ea etsa mosebetsi oa ho sireletsa sisteme ea haeteroliki le sebopeho sa mochini o hoketsoeng ho eona, e sebetsa joalo ka valve e thibelang ho ts'oha ha khatello e phahama ka lebaka la meroalo e mengata kapa mathata a itseng ka phoso. Mosebetsi ona o ka khoneha feela haeba mohala oa ho khutlela ho distributor o kopantsoe le drain. Ke semi-compensated counterbalance valve: peakanyo ya valafo ha e amehe ke kgatello efe kapa efe e setseng mehalang ya ho kgutla, kgatello e eketsang kgatello ya sefofane e hlokehang ho bula valve. Ka hona, mofuta ona oa valve o loketse ho kenngoa lits'ebetsong tse kenyelletsang barekisi ba nang le li-slider tse koetsoeng, tse nang le lisebelisoa tse koetsoeng ka ho se nke lehlakore.

Ntho ea bohlokoa ea ho tšehetsa mojaro ke hydraulic seal. E le ho netefatsa tshebetso e ntle ka ho fetisisa mabapi le ho tiisa, BOST e ela hloko ka ho kgethehileng ho phethahala ha dikarolo, ho tloha kaho ya tsona ka tshepe e matla, e thata le e silwang, ho ya ho netefatso ya dimensional le geometrical, hammoho le diteko tsa dintho tse kopantsweng. belofo. Li-valve tsa  counterbalance ke likarolo tsa li-valve tsa 'mele: likarolo tsohle li kentsoe ka har'a hydraulic manifold, tharollo e lumellang ho laola sekhahla sa phallo e phahameng ha boholo ba kakaretso bo le tlase. Mefuta eohle e mengata e entsoe ka tšepe, sena se lumella li-valve tsa BOST counterbalance hore li sebetse ka likhatello tse fihlang ho 350 bar (5075 PSI) 'me li tiisa hore ho na le khanyetso e phahameng ea ho apara molemong oa bophelo bo molemo ba valve. Bakeng sa khanyetso e lekaneng ea ketso ea li-ajenti tse senyang, 'mele oa li-valve le likarolo tsa ka ntle ha li tlas'a phekolo ea zinc plating. 'Mele oa li-valve o lekanngoa holim'a libaka tsohle tse tšeletseng bakeng sa katleho e ntle ea phekolo. Bakeng sa lits'ebetso tse pepesehetseng lintho tse senyang haholo (mohlala, ts'ebeliso ea metsing) kalafo ea zinc-nickel e fumaneha ha e kopa.  li-valve li fumaneha ka boholo ho tloha BSPP 1/4 "ho ea BSPP 1/2" bakeng sa bokhoni ba ho sebetsa ho fihlela ho 60 lpm (15,9 gpm). Ho feta moo, ho na le mefuta e fapaneng ea litlhophiso le likarohano tse fapaneng tsa ho leka li fumaneha ho ikamahanya hamolemo le mefuta eohle ea lits'ebetso. Bakeng sa ts'ebetso e nepahetseng ho eletsoa ho lekanya valve ea counterbalance ka boleng ba 30% ho feta mosebetsi o mongata oa mosebetsi.