I-Excavator Main Control valve PC200-8 PC220-8 Ukuphepha Valve 723-90-76101

Ukuthumela imivuselelo ye-valve esebenzayo: ukulayisha i-valve ye-valve yakhiwa i-valve ye-valve futhi ihlole i-valve. Lapho ingcindezi yesistimu ifinyelela ingcindezi yokuvula ye-valve yosizo, i-valve yokusiza ivulelwa futhi ipompo iyalayishwa. Lapho ingcindezi yesistimu yehlela ekucindezelweni kokuvalwa kwe-valve yokusiza, i-valve yokusiza ivala futhi imithwalo yempompo ohlelweni.
I-valve yokulayisha iyi-valve engenza iphampu ye-hydraulic ilayishe ngaphansi kwezimo ezithile. I-valve yokulayisha imvamisa i-valve yokusiza nge-valve enezindlela ezimbili (imvamisa i-solenoid valve), esetshenziselwa ukusetha ingcindezi enkulu yohlelo (iphampu yephampu) lapho ingalayishiwe. Lapho uwoyela wengcindezelo ekhishwa (ngokuguqulwa kwe-valve ye-valve enezindlela ezimbili), amafutha okucindezela abuyele ngqo ethangini, futhi ingcindezi yepompo kawoyela incishiswa yaba cishe ku-zero, ukuze kufinyelelwe ekuphatheni kwe-loop futhi kuthuthukise impilo ye-oyili futhi kunciphise ukusetshenziswa kwamandla.
Okungokwesop okufakiwe ku-loop. I-valve enciphisa ingcindezi isetshenziselwa ukulungisa ingcindezi edingwa yi-actuator, okukuchungechunge ku-loop futhi ngokuvamile ayikwazi ukusetshenziswa ngokushintshana.

Imininingwane Ezengeziwe:
Uhlobo lokulayisha i-valve:
Uhlobo lokungena
Isiteshi sokulayisha kanye ne-valve yengcindezi kusethiwe ngokwahlukile. Lapho kulayishwa, i-spool ngayinye isesimweni sokungathathi hlangothi, futhi uwoyela ovela emthonjeni kawoyela ukhishwa ubuyela ethangini ngesiteshi esikhethekile kawoyela nge-valve ngayinye, kanye nesiteshi samafutha sokulayisha sisebenza nge-valve ngayinye ebuyiselwe emuva. Lapho elinye lama-valves lisebenza (okungukuthi, indawo yokulayisha uwoyela inqunywe), uwoyela ovela emthonjeni we-oyela ungena ku-actuator elawulwa kusuka ku-valve ehlehlisiwe emgwaqweni, futhi umfutho osebenzayo unqunyelwe yi-valve yengcindezi yesibalo.
Ukulayisha Uhlobo
I-valve yokulayisha kanye ne-valve yezokuphepha ihlanganiswe ukwakha i-valve ye-Pilot-asebenza nge-Pilot-asebenza, okuyi-valve yokulayisha ne-valve yokuphepha, futhi kwesinye isikhathi i-valve echichimayo. Ngesikhathi sokulayisha, ukulandelwa kwamafutha okulawula kudlula evveve ngayinye eqondile, okufana nokulayisha amafutha.