Iivalvu yesangoiyisango lokuvula nelokuvala. Indlela yokuhamba kwesango iqonde ngqo ohlangothini loketshezi. Ivalvu yesango ingavulwa ngokugcwele futhi ivalwe ngokuphelele, futhi ayikwazi ukulungiswa noma ukugoqwa. Ivalvu yesango ivalwe ngokuthintana phakathi kwesihlalo sevalvu nepuleti yesango. Ngokuvamile, indawo yokuvala izobekwa ngezinto zensimbi ukwandisa ukumelana nokuguguleka, njengokufaka i-1Cr13, STL6, insimbi engagqwali, njll. Isango linesango eliqinile nesango elithambile. Ngokusho kwamasango ahlukene, ivalvu yesango ihlukaniswe ibe yivalvu yesango eliqinile nevalvu yesango elithambile.
Ingxenye yokuvula nokuvala yevalvu yesango yisango, futhi indlela yokuhamba kwesango iqonde ngqo ohlangothini loketshezi.ivalvu yesangoingavulwa ngokuphelele futhi ivalwe ngokuphelele, futhi ayikwazi ukulungiswa noma ukugoqwa. Isango linezindawo ezimbili zokuvala. Izindawo ezimbili zokuvala zevalvu yesango yemodi esetshenziswa kakhulu zakha isimo se-wedge. I-angle ye-wedge iyahlukahluka ngokwemingcele yevalvu, ngokuvamile i-5°, kanye ne-2°52' lapho izinga lokushisa eliphakathi lingekho phezulu. Isango levalvu yesango le-wedge lingenziwa libe yi-whole, ebizwa ngokuthi isango eliqinile; lingenziwa futhi libe isango elingakhiqiza inani elincane lokuguquguquka ukuze kuthuthukiswe ubuciko balo futhi kulungiswe ukuphambuka kwe-angle yokuvala ubuso ngesikhathi sokucubungula. Ipuleti libizwa ngokuthi isango elinwebekayo. Lapho ivalvu yesango ivaliwe, indawo yokuvala ingavalwa kuphela ngengcindezi ephakathi, okungukuthi, kuncike ekucindezelweni okuphakathi ukuze kucindezelwe indawo yokuvala yesango esihlalweni sevalvu ngakolunye uhlangothi ukuqinisekisa ukuvalwa kwendawo yokuvala, okuzivala ngokwayo. Amavalvu amaningi esango avalwa ngenkani, okungukuthi, lapho ivalvu ivaliwe, isango kumele liphoqelelwe esihlalweni sevalvu ngamandla angaphandle ukuqinisekisa ukuqina kwendawo yokuvala. Isango le-valve yesango lihamba ngokuhambisana nesiqu se-valve, esibizwa ngokuthi i-lift-rod gate valve, eyaziwa nangokuthi i-rising-rod gate valve. Ngokuvamile, kuba nemicu ye-trapezoidal entongeni yokuphakamisa. Nge-nut ephezulu ye-valve kanye nomsele wokuqondisa emzimbeni we-valve, ukunyakaza okujikelezayo kuguqulwa kube ukunyakaza okuqondile, okungukuthi, i-torque yokusebenza iguqulwa ibe yi-operating thrust. Lapho i-valve ivulwa, lapho ukuphakama kwe-lift kwesango kulingana nobubanzi be-valve obuyi-1:1 izikhathi, isiteshi soketshezi asivimbeki, kodwa lesi sikhundla asikwazi ukubhekwa ngesikhathi sokusebenza. Ekusetshenzisweni kwangempela, i-peak yesiqu se-valve isetshenziswa njengesibonakaliso, okungukuthi, indawo lapho ingenakuvulwa khona, njengendawo yayo evulekile ngokuphelele. Ukuze kucatshangelwe isenzakalo sokukhiya esibangelwa ukushintsha kwezinga lokushisa, ivame ukuvulwa iye endaweni ephezulu, bese ibuyela emuva ekujikeni okungu-1/2-1, njengendawo ye-valve evulekile ngokuphelele. Ngakho-ke, indawo evulekile ngokuphelele ye-valve inqunywa ngokuya ngesimo sesango, okungukuthi, i-stroke. Kwabanyeamavalvu esango, i-stem nut ibekwe esangweni, futhi ukujikeleza kwesondo lesandla kuqhuba i-valve stem ukuthi ijikeleze, okwenza isango liphakame. Lolu hlobo lwe-valve lubizwa ngokuthi i-rotary stem gate valve, noma i-dark stem gate valve.
I-valve yesango le-Flange iyi-valve yesango enokuxhumeka kwe-flange, le ndlela yokuxhuma iyona evame kakhulu. Ama-valve esango le-Flange azinzile futhi athembekile uma esetshenziswa kumapayipi, ngakho-ke ama-valve esango le-flange avame ukusetshenziswa kumapayipi anomfutho ophezulu.
I-Polyurethane Knife Gate Valve eyenza ibe ngenye yezinto ezingcono kakhulu ezingamelani nokuklwebheka. I-Polyurethane Knife Gate Valve yethu (NSW) igcwele i-urethane esezingeni eliphezulu, edlula kakhulu isikhathi sokuguguleka kwerabha yensini nanoma iyiphi enye i-liner ethambile, noma izinto zesikhafu.
Isihlalo se-valve yesango le-Newsway Valve sisebenzisa isakhiwo sezimbozo ze-O-ring kanye nesihlalo se-valve esintantayo esiqinisayo, i-inlays yokuvala ethambile i-fluoroplastic, inikeza umsebenzi wokuvala okuphindwe kabili: i-fluoroplastic kuya kwensimbi kanye nensimbi kuya kwensimbi. Futhi ngesikhathi esifanayo, i-fluoroplastic ingasusa ukungcola kwediski yesango.
Isikhathi sokuthunyelwe: Jan-08-2022