Eshabhu laseJinbin, inani elikhuluamavalvu embulungaziyahlolwa okokugcina. Ngokwezidingo zamakhasimende, osayizi bazo basukela ku-DN25 kuya ku-DN200. (i-valve yeglobe engu-2 intshi)

Njengevalvu evamile, ivalvu yomhlaba inezici ezilandelayo:

1. Ukusebenza kahle kakhulu kokuvala: Isakhiwo sokuvala esiyinhloko sinokulingana okuqinile phakathi kwediski yevalvu nesihlalo sevalvu. Uma ivaliwe, idiski yevalvu icindezela esihlalweni sevalvu ngaphansi kwengcindezi, ifinyelele ekunqanyulweni okuqinile. Ifanele ukusetshenziswa lapho ukuvuza okuphakathi kudingeka kuvinjelwe khona (njengepayipi legesi nelesitimu).

2. Ukusebenza okuhle kakhulu kokulawula: Idiski yevalvu iyaphakama futhi iwele eceleni kwe-axis yesiqu sevalvu, futhi izinga lokugeleza lingalungiswa ngokunembile ngokulawula izinga lokuvula. Izinga lokugeleza lishintsha kahle kusukela ekuvulekeni ngokuphelele kuya ekuvalekeni ngokuphelele, okwenza lifanelekele izimo ezidinga ukulawulwa kokugeleza okuncane (njengokulungiswa kwezinga lokushisa ezinhlelweni zokushisa).

3. Ukumelana okukhulu kokugeleza: I-medium idinga ukujika nokugeleza iphume ngemva kokudlula esihlalweni se-valve, ngendlela egobile. Ukulahlekelwa yingcindezi kukhulu kunokwama-valve aqondile njengama-valve esango. Ngakho-ke, ayifaneleki kumapayipi anezidingo ezinkulu zokugeleza kanye nokumelana okuphansi (njengepayipi eliyinhloko lokuhambisa amanzi).

4. Ukufakwa okuqondile: Kumele ifakwe ngokuhambisana nesimiso esithi “ukungena okuphansi, ukuphuma okuphezulu” (i-medium igeleza isuka ngaphansi kwediski yevalvu), okuqinisekisa ukuthi idiski yevalvu iyasizwa ekuvaleni yingcindezi ephakathi uma ivaliwe, futhi ukusebenza kulula. Ukuyifaka ngokuphambene kuzoholela ekwehlulekeni kwesivalo kanye nokusebenza okukhathazayo.

5. Uhla olubanzi lwemidiya esebenzayo: Ingasetshenziswa kwimidiya ehlanzekile njengamanzi, umusi, imikhiqizo kawoyela, kanye negesi, kodwa ayifaneleki kwimidiya ene-viscosity ephezulu noma ene-granular (njengoba ingaguga kalula indawo yokuvala futhi yonakalise ukusebenza kokuvala).

Ngokusekelwe kulezi zici, ama-valve okuma asetshenziswa kabanzi ezimweni ezidinga ukuvalwa okuqinile kanye nokulawulwa okuqondile:

1. Uhlelo lokuphakelwa kwamanzi kanye nokukhipha amanzi: Njengevalvu yokulawula yomhlaba wonke yamapayipi amagatsha, inquma noma ilawula umthamo wamanzi ukuqinisekisa ukulawulwa kwesifunda kwenethiwekhi yamapayipi.

2. Uhlelo lomusi: Nciphisa ukuphakelwa komusi noma ulawule izinga lokugeleza kwamapayipi omusi wezimboni, bese usebenzisa isici salo sokuvala ukuvimbela ukuvuza komusi nokulahlekelwa amandla.

3. Imboni ye-Petrochemical: Lapho kuthuthwa uwoyela ongahluziwe, izinyibilikisi kanye nezinye izinto ezisetshenziswayo, izinga lokugeleza lilawulwa ngokulungisa izinga lokuvula ukuze kuhlangatshezwane nezidingo zokudla zedivayisi yokusabela.

4. Izinhlelo zokushisa nezokupholisa umoya: Lawula ukugeleza kwamanzi ashisayo noma i-refrigerant ukuze kufezwe ukulawula okunembile izinga lokushisa legumbi futhi kuthuthukiswe ukusetshenziswa kwamandla kahle.

Amapayipi egesi nomoya ocindezelwe: Njengevalvu yokuvala ukuphepha, ivala ngokushesha ngesikhathi sokulungiswa noma amaphutha ukuvimbela ukuvuza okuphakathi kanye nezingozi zokuphepha ezingaba khona.

Ngenxa yezinzuzo zokuvala okuthembekile kanye nokulawula okuguquguqukayo, i-globe valve flanged isibe yingxenye ebalulekile ezinhlelweni zamapayipi ezihlanganisa imisebenzi yokusika nokulawula. Ayinakushintshwa ikakhulukazi ezimweni ezinobubanzi obuphakathi nobuncane kanye nezidingo eziphezulu zokuvala nokulawula. (Intengo ye-Globe Valve)