I-Rising Stem Soft Seling Groove Gate Valve

I-valve yesango isetshenziselwa kakhulu ukusika amadivaysi ane-diameter ye-DN ≥ 50mm, futhi ngezinye izikhathi ama-valve esango nawo asetshenziselwa ukusika amadivaysi anamamitha amancane.

Ingxenye yokuvula nokuvala ye-valve yesango yisango, futhi isiqondiso sokunyakaza kwesango sibhekene nesiqondiso soketshezi.I-valve yesango ingavulwa ngokugcwele futhi ivalwe ngokugcwele, futhi ayikwazi ukulungiswa noma ukucindezelwa.Isango linezindawo ezimbili zokuvala.Izindawo ezimbili zokuvala zevalvu yesango yephethini evame ukusetshenziswa kakhulu zakha umumo we-wedge.I-engeli ye-wedge iyahlukahluka nemingcele yevalvu, ngokuvamile engu-50, no-2°52' lapho izinga lokushisa elimaphakathi lingekho phezulu.Isango le-valve yesango le-wedge lingenziwa libe liphelele, elibizwa ngokuthi isango eliqinile;kungenziwa futhi isango elingakhiqiza inani elincane lokuguqulwa ukuze kuthuthukiswe ukwenziwa kwalo futhi kunxephezele ukuphambuka kwe-angle yokuvala uphawu ngesikhathi sokucubungula.Ipuleti libizwa ngokuthi isango elinwebekayo.I-valve yesango iyisisetshenziswa esiyinhloko sokulawula ukugeleza noma ukudluliswa kwevolumu yempushana, impahla yokusanhlamvu, i-granular material kanye nesiqephu esincane sempahla.Isetshenziswa kabanzi kwezensimbi, izimayini, izinto zokwakha, okusanhlamvu, imboni yamakhemikhali nezinye izimboni ukulawula ukuguquka kokugeleza noma ukunqanyulwa ngokushesha.

Ama-valve esango abhekisela ngokukhethekile ezinhlotsheni zama-valve esango lensimbi, angahlukaniswa abe ama-valve esango eliwunqenqema, ama-valve esango ahambisanayo, nama-valve esango le-wedge ngokuya ngokumiswa kwendawo yokuvala.I-valve yesango ingahlukaniswa: uhlobo lwesango elilodwa, uhlobo lwesango eliphindwe kabili kanye nohlobo lwesango lokunwebeka;i-valve yesango elihambisanayo ingahlukaniswa ngohlobo olulodwa lwesango kanye nohlobo lwesango eliphindwe kabili.Ngokusho kokuma kwentambo yesiqu se-valve, ingahlukaniswa ngezinhlobo ezimbili: i-valve yesango ye-stem ekhuphukayo kanye ne-valve yesango ye-stem engaphumi.

Lapho i-valve yesango ivaliwe, indawo yokuvala ingavalwa kuphela ngokucindezela okuphakathi, okungukuthi, ukuncika ekucindezelweni okuphakathi ukuze ucindezele indawo yokuvala yepuleti lesango esihlalweni se-valve ngakolunye uhlangothi ukuze kuqinisekiswe ukuvala indawo yokuvala, okuzivala yona.Iningi le-valve yesango liphoqelelwa uphawu, okusho ukuthi, lapho i-valve ivaliwe, isango kufanele licindezelwe esihlalweni se-valve ngamandla angaphandle, ukuze kuqinisekiswe ukubekwa uphawu kwendawo yokuvala.

Isango le-valve yesango lihamba ngomugqa oqondile nesiqu se-valve, ebizwa ngokuthi i-valve yesango le-stem eliphakamisayo (ebizwa nangokuthi i-rising stem gate valvu).Ngokuvamile kukhona intambo ye-trapezoidal ku-lifter, futhi ngokusebenzisa nati phezulu kwe-valve kanye ne-groove eqondisayo emzimbeni we-valve, ukunyakaza okujikelezayo kuguqulwa kube ukunyakaza komugqa oqondile, okusho ukuthi, i-torque yokusebenza iyashintshwa. ekuhlohleni ukusebenza.

Lapho i-valve ivuliwe, lapho ukuphakama kokuphakama kwepuleti lesango lilingana no-1: 1 izikhathi ububanzi be-valve, ukudlula koketshezi kuvuliwe ngokuphelele, kodwa lesi sikhundla asikwazi ukuqapha ngesikhathi sokusebenza.Ekusetshenzisweni kwangempela, i-apex ye-valve stem isetshenziswa njengophawu, okungukuthi, indawo lapho isiqu se-valve singanyakazi sithathwa njengendawo yaso evuleke ngokugcwele.Ukuze ucabangele isenzakalo sokukhiya ngenxa yokuguquka kwezinga lokushisa, ngokuvamile kuvulwa endaweni ephezulu, bese ubuyela emuva 1/2-1 ukuphenduka, njenge-valve evuleke ngokugcwele.Ngakho-ke, indawo evulekile ngokugcwele ye-valve inqunywa indawo yesango (okungukuthi, ukushaywa).

Kwamanye ama-valve esango, i-stem nut isethwe epuleti lesango, futhi ukuzungezisa kwesondo lesandla kushayela isiqu se-valve ukuze sizungeze, futhi ipuleti lesango liyaphakanyiswa.Lolu hlobo lwe-valve lubizwa ngokuthi i-rotary stem gate valve noma i-valve yesango elimnyama.