I-valve yesango isho i-valve lapho ilungu elivalayo (isango) lihamba liqonde mpo yomugqa omaphakathi wephaseji.I-valve yesango ingasetshenziswa kuphela ukuvala ngokugcwele nokuvala ngokugcwele epayipini, futhi ayikwazi ukusetshenziselwa ukulungisa nokudonsa.I-valve yesango iwuhlobo lwe-valve enezinhlobonhlobo zokusetshenziswa.Ngokuvamile, amadivaysi anqunyiwe e-DN50 akhethiwe ukuze asetshenziswe, futhi ngezinye izikhathi ama-valve amasango nawo asetshenziselwa amadivaysi anqamule anobubanzi obuncane.I-valve yesango isetshenziswa njengendlela yokusika, futhi ukugeleza konke kuqondile lapho ivuliwe ngokugcwele.Ngalesi sikhathi, ukulahlekelwa kwengcindezi ye-medium kuncane.Ama-valve esango ngokuvamile afaneleka izimo zokusebenza ezingadingi ukuvulwa nokuvala njalo futhi agcine isango livuliwe ngokugcwele noma livalwe ngokugcwele.Ayifanele ukusetshenziswa njengomthetho noma i-throttling.Ngomshini ogeleza ngesivinini esikhulu, isango lingabangela ukudlidliza kwesango lapho livulwa ingxenye, futhi ukudlidliza kungase konakalise indawo yokuvala yesango nesihlalo se-valve, futhi ukugobhoza kuzokwenza ukuthi isango liguguleke. okuphakathi.
Kusukela efomini lesakhiwo, umehluko omkhulu yindlela yesici sokuvala esisetshenzisiwe.Ngokwesimo sezakhi zokuvala, ama-valve esango avame ukuhlukaniswa abe izinhlobo eziningana ezihlukene, njengalezi: i-valve yesango eliwumngcele, i-valve yesango elihambisanayo, i-valve yesango elilinganayo, i-valve yesango eliphindwe kabili, njll. kanye nama-valve esango ahambisanayo.
Isango linezindawo ezimbili zokuvala.Izindawo ezimbili zokuvala zevalvu yesango eliwuweji evame ukusetshenziswa kakhulu zakha inkemba.I-engeli ye-wedge iyahlukahluka ngamapharamitha e-valve, ngokuvamile ama-degree angu-5.Isango le-valve yesango le-wedge lingenziwa libe liphelele, elibizwa ngokuthi isango eliqinile;kungenziwa futhi isango elingakhiqiza ukuguqulwa okuncane ukuze kuthuthukiswe ukwenziwa kwayo futhi kwenze ukuphambuka kwe-angle yokuvala uphawu ngesikhathi sokucubungula.Ipuleti libizwa ngokuthi isango elinwebekayo.
Lapho i-valve yesango ivaliwe, indawo yokuvala ingancika kuphela ekucindezelweni okuphakathi ukuze ivalwe, okungukuthi, incike ekucindezelweni okuphakathi ukuze ucindezele indawo yokuvala yesango ukuya esihlalweni se-valve ngakolunye uhlangothi ukuze kuqinisekiswe ukuvalwa kwe-valve. indawo yokuvala, okuzivala yona.Ama-valve amaningi esango athatha ukuvala okuphoqelekile, okungukuthi, lapho i-valve ivaliwe, isango kufanele liphoqwe ngokumelene nesihlalo ngamandla angaphandle ukuze kuqinisekiswe ukuqina kwendawo yokuvala.
I-valve yesango ye-valve yesango ihamba ngokulandelana nesiqu se-valve, ebizwa ngokuthi i-valve yesango le-stem eliphakamisayo (ebizwa nangokuthi i-rising stem gate valvu).Imvamisa kuba khona intambo ye-trapezoidal entweni yokuphakamisa, ngokusebenzisa nati phezulu kwe-valve kanye ne-groove eqondisayo emzimbeni we-valve, ukunyakaza okujikelezayo kuguqulwa kube ukunyakaza okuqondile, okungukuthi, i-torque yokusebenza iguqulwa ibe yi-thrust yokusebenza.
Lapho i-valve ivuliwe, lapho ukuphakama kokuphakama kwesango kufana ne-1: 1 izikhathi ububanzi be-valve, i-fluid passage ayivaliwe ngokuphelele, kodwa lesi sikhundla asikwazi ukuqapha ngesikhathi sokusebenza.Ekusetshenzisweni kwangempela, i-apex ye-valve stem isetshenziswa njengophawu, okungukuthi, indawo lapho ingakwazi ukuvulwa khona, njengesikhundla sayo esivulekile ngokugcwele.Ukuze ucabangele into yokukhiya ngenxa yezinguquko zokushisa, ngokuvamile ivulwa endaweni ephezulu, bese ibuyela emuva 1/2 ~ 1 ukuphenduka, njengesikhundla se-valve evulekile ngokugcwele.Ngakho-ke, indawo evulekile ngokugcwele ye-valve inqunywa indawo yesango (okungukuthi, ukushaywa).
I-Nortech ingomunye wabakhiqizi abahamba phambili bamavalvu ezimbonini e-China abanesitifiketi sekhwalithi ye-ISO9001.
Isikhathi sokuthumela: Aug-16-2021