Olu luhlu ziivalvu eziphindwe kabini. Ngokusebenzisa ezi zivalo ziyakwazi ukulawula imithwalo ye-bidirectional, ukuqinisekisa ukuzinza kwindawo yokusebenza kunye nokulawula ukuhamba kwazo nangona kukho imithwalo ye-gravitational engenzi uxinzelelo. Umzimba wevalvu ene-cetop 3 flanging ephindwe kabini ivumela ezi zivalo ukuba zisetyenziswe kwiinkqubo ze-hydraulic ezisekwe kwi-Cetop 3, ukuzifakela phakathi kwesiseko semodyuli kunye nevalve ye-solenoid. Uxinzelelo oluphezulu lokusebenza luyi-350 bar (5075 PSI) kunye nesantya esiphezulu sokuhamba esinconywayo yi-40 lpm (10,6 gpm).

Ulawulo lwentshukumo lwenzeka ngenxa yokuvulwa ngokuthe ngcembe komgca wokungena kwakhona kwe-actuator, elawulwa yi-hydraulic piloting kwelinye icala kwaye eyenza uxinzelelo lwasemva olwaneleyo ukumodareyitha isantya sokuhamba kwe-actuator nokuba kukho i-actuator. umthwalo womxhuzulane, ngaloo ndlela ukuthintela ukwenzeka kwento ebizwa ngokuba yi-cavitation.

Iivalve ze-VBCS eziphikisanayo nazo zingenza umsebenzi we-valve yokunqanda ukothuka, ukukhusela inkqubo ye-hydraulic kunye nesakhiwo somatshini apho idityaniswe kuyo nayiphi na incopho yoxinzelelo enokuthi yenzeke ngenxa yomthwalo ogqithisileyo ovela kwiimpembelelo zengozi. Lo msebenzi unokwenzeka kuphela ukuba umgca wokubuyela ezantsi kwevalve uqhagamshelwe kwitanki. I-VBCS i-valve ye-counterbalance valve engahlawulwanga: nayiphi na i-backpressures yongezwa kwi-valve setting kwaye iphikisana nokuvula. Ngolu hlobo lwe-valve ngoko ke kucetyiswa ukuba kusetyenziswe kwiinkqubo ezibandakanya i-valve ye-cetop directional valve kunye ne-spool yeziko elivulekileyo, kunye nabasebenzisi abaxhunyiwe ukukhupha kwindawo engathathi hlangothi.

Ukunyamekela ngokukodwa kuthathwa yi-VBCS ekwakhiweni nasekuqinisekiseni amacandelo angaphakathi aqaphela i-hydraulic seal, imilinganiselo yokuqinisekisa kunye nokunyamezela kwejometri, kunye nokutywinwa ngokwayo xa i-valve ihlanganiswe. Umzimba kunye namacandelo angaphandle ayenziwe ngentsimbi ephezulu kwaye akhuselwe kwi-corrosion nge-zinc plating. Ukucutshungulwa komzimba kwimigangatho emithandathu kuqinisekisa ukuphunyezwa konyango oluphezulu ukuze kuxhamle ukusebenza kwayo.

Ukusetyenziswa kwezicelo ezivezwe ngokukodwa kwizinto ezidlodlayo (umz. izicelo zaselwandle) unyango lwe-zinc-nickel luyafumaneka xa ulucelile. Uluhlu oluhlukeneyo lokucwangcisa kunye nemilinganiselo yokulinga eyahlukileyo iyafumaneka ukuze ulungelelanise ngcono zonke iintlobo zezicelo. Ukusebenzisa i-cap yeplastiki kunokwenzeka kwakhona ukutywina ukuseta, ukukhusela ekuphazamiseni. Ukusebenza ngokufanelekileyo kuyacetyiswa ukuba usete i-valve ye-counterbalance kwixabiso le-30% ephezulu kunomsebenzi omkhulu womsebenzi.