I-PVC (i-polyvinyl chloride) ne-UPVC (i-polyvinyl chloride engafakwanga ipulasitiki) yizinto ezisetshenziswa kakhulu ekwenzeni ama-valve ahlukahlukene.

Lezi zinto ziyaziwa ngokuqina kwazo, ukumelana nokugqwala, kanye nokuthengeka kwazo, okuzenza zibe ukukhetha okudumile ezinhlobonhlobo zezinhlelo zokusebenza. Olunye uhlobo lokufakwa kwe-valve oluvame ukwenziwa nge-PVC noma i-UPVC ivalve uvemvane.

Umgomo we-valve uvemvane we-PVC usekelwe ekwakhiweni okulula kodwa okuphumelelayo. I-valve iqukethe i-disc, efakwe ku-shaft ejikelezayo. Lapho i-valve isendaweni evaliwe, i-disc i-perpendicular ekugelezeni kwamanzi, ukuyivimbela ngokuphumelelayo. Lapho i-valve ivuliwe, i-disc ijikeleza ngokuhambisana nokugeleza, ivumela uketshezi ukuba ludlule.

Ukusetshenziswa kwe-PVC noma i-UPVC ekwakhiweni kwama-butterfly valves kunikeza izinzuzo eziningana. Lezi zinto zilula, okwenza ama-valve aphathe futhi afakwe kalula. Ziyakwazi futhi ukumelana nokugqwala, okuzenza zilungele ukusetshenziswa ezindaweni ezihlukahlukene, kuhlanganise nalezo ezichayeka kumakhemikhali noma izimo zezulu ezinzima. Ukwengeza, i-PVC ne-UPVC ayinabo ubuthi futhi iphephile ukusetshenziswa ezinhlelweni ezibandakanya amanzi aphuzwayo noma ukucubungula ukudla.

Ingaphakathi elibushelelezi lamavalvu evemvane e-PVC kanye ne-UPVC linciphisa ukumelana nokugeleza, linciphise ukwehla kwengcindezi kanye nokusetshenziswa kwamandla. Lokhu kubenza babe ukukhetha okuphumelelayo kokulawula ukugeleza koketshezi ohlelweni. Ngaphezu kwalokho, lezi zinto ezisetshenziswayo azinakekelwa kahle, zidinga ukunakekelwa okuncane ngesikhathi sokuphila kwazo.

I-PVC ne-UPVC butterfly valves zivame ukusetshenziswa ezimbonini ezifana nokuhlanza amanzi, ukuchelela, ukucutshungulwa kwamakhemikhali, nezinhlelo ze-HVAC. Ukuguquguquka kwazo kanye nokusebenza kahle kwezindleko kuzenza zibe yisinqumo esidumile sokulawula ukugeleza kwamanzi, umoya, nolunye uketshezi ezinhlobonhlobo zezinhlelo zokusebenza.

Ekuphetheni, isimiso se-valve butterfly ye-PVC sisekelwe ekujikelezeni kwe-disc ukulawula ukugeleza koketshezi. Ukusetshenziswa kwezinto ze-PVC ne-UPVC ekwakhiweni kwala mavalvu kunikeza izinzuzo eziningi, okuhlanganisa ukuqina, ukumelana nokugqwala, nokusebenza kahle. Lezi zimfanelo zenza ama-valve evemvane e-PVC kanye ne-UPVC abe yisixazululo esithembekile nesingabizi kakhulu sokulawula uketshezi ezindaweni ezihlukahlukene zezimboni nezohwebo.