Mufunika valavu yomwe sichitha kapena kusweka, koma PVC ikuwoneka yotsika mtengo komanso yosavuta. Kusankha gawo lolakwika kungatanthauze msonkhano wodzaza madzi komanso nthawi yotsika mtengo.

Mapangidwe apamwambaPVC valavu mpirandi odalirika kwambiri pazofuna zawo. Kudalirika kwawo kumachokera ku mapangidwe awo osavuta komanso chitetezo chokwanira ku dzimbiri ndi dzimbiri, zomwe ndizo zolephera zazikulu za ma valve achitsulo m'madzi ambiri amadzi.

Funso la kudalirika limabwera nthawi zonse. Posachedwapa ndimalankhula ndi Kapil Motwani, manejala wogula yemwe ndimagwira naye ntchito ku India. Amapereka zipangizo kwa mabizinesi ambiri olima m'madzi omwe amalima nsomba ndi shrimp m'mphepete mwa nyanja. Iwo ankagwiritsa ntchitomavavu amkuwa, koma madzi amchere omwe amakhalapo nthawi zonse komanso mpweya wonyowa ukhoza kuziwononga pasanathe zaka ziwiri. Zogwirizira zimatha kugwedezeka kapena matupi amatha kudontha. Pamene adawasinthira ku Pntek yathuPVC valavu mpira, vuto linatha. Zaka zisanu zapita, mavavu a PVC omwewo akugwira ntchito mwangwiro. Ndiko kudalirika komwe kuli kofunikira m'dziko lenileni.

Kodi valavu ya PVC imatha nthawi yayitali bwanji?

Mukukhazikitsa dongosolo ndipo muyenera kukhulupirira zigawo zake kwa zaka zambiri. Kung'amba nthawi zonse ndikusintha ma valve olephera ndi mutu waukulu komanso ndalama zomwe mukufuna kuzipewa.

Vavu yopangidwa bwino ya PVC imatha kukhala zaka 10 mpaka 20, kapena kupitilira mumikhalidwe yabwino. Zomwe zimatsimikizira moyo wake ndi mtundu wa PVC, kuwonekera kwa UV, kuyanjana kwamankhwala, komanso kuchuluka kwa ntchito.

Kutalika kwa valve si nambala imodzi; ndi zotsatira zachindunji za ubwino wake ndi kagwiritsidwe ntchito. Chinthu chimodzi chachikulu ndi zinthu zomwezo. Timangogwiritsa ntchito100% PVC namwali. Opanga ambiri otsika mtengo amagwiritsa ntchito“regrind”—zinyalala zapulasitiki zobwezerezedwanso-zomwe zimabweretsa zodetsa ndikupangitsa kuti chinthu chomaliza chikhale chofewa komanso chitha kulephera. Chinthu chinanso chachikulu ndi kuwala kwa dzuwa. PVC yokhazikika idzafowoketsedwa chifukwa cha kuwonekera kwa UV kwa nthawi yayitali, ndichifukwa chake timapanga mitundu yolimbana ndi UV ya ntchito zakunja monga kuthirira. Pomaliza, taganizirani zisindikizo zamkati. Mavavu athu amagwiritsa ntchito yosalala, yolimbaPTFE mipandozomwe zimatha kuzungulira masauzande ambiri, pomwe mavavu otsika mtengo nthawi zambiri amagwiritsa ntchito labala yofewa yomwe imatha kung'ambika kapena kuwonongeka mwachangu, zomwe zimapangitsa kuti valavu isatseke. Vavu yabwino si gawo chabe; ndi ndalama yaitali mu kudalirika.

Zomwe Zimakhudza Moyo Wavavu wa PVC

Ndi mavavu abwino ati amkuwa kapena PVC?

Mukuwona valavu yamkuwa ndi valavu ya PVC mbali ndi mbali. Kusiyana kwamitengo ndikwambiri, koma ndi iti yomwe ili yabwinoko pantchito yanu? Kusankha kolakwika kungawononge ndalama zambiri.

Palibe zinthu zomwe zili zabwinoko; kusankha bwino zimadalira kwathunthu ntchito. PVC imapambana m'malo owononga ndipo ndiyotsika mtengo. Mkuwa ndi wapamwamba kwambiri chifukwa cha kutentha kwambiri, kupanikizika kwambiri, ndi zochitika zomwe zimafuna mphamvu zambiri zakuthupi.

Ili ndi limodzi mwamafunso omwe gulu la Kapil Motwani limapeza. Yankho pafupifupi nthawi zonse limapezeka pofunsa za ntchito.Zithunzi za PVCsuperpower ndi inertness ake mankhwala. Sichita dzimbiri. Kwa machitidwe okhudzana ndi madzi a m'chitsime, feteleza, madzi amchere, kapena ma asidi ochepa, PVC idzatulutsa mkuwa kwambiri. Mkuwa ukhoza kuvutika ndi chinthu chotchedwadezincification, pamene madzi ena amadzimadzi amatulutsa zinki kuchokera mu alloy, ndikupangitsa kuti ikhale yotsekemera komanso yofooka. PVC ndi yopepuka komanso yotsika mtengo kwambiri. Komabe,mkuwandiye wopambana momveka bwino zikafika pakulimba. Imatha kuthana ndi kutentha komanso kupanikizika kwambiri kuposa PVC, ndipo imalimbana kwambiri ndi kukhudzidwa kwakuthupi. Ngati mukufuna valavu ya mzere wa madzi otentha, mzere wa mpweya wothamanga kwambiri, kapena pamalo omwe ukhoza kugunda, mkuwa ndiye chisankho chotetezeka. Pazinthu zambiri zamadzi ozizira, PVC imapereka phindu lanthawi yayitali.

PVC vs. Brass: Kuyerekeza kwa Mutu ndi Mutu

Kodi mavavu a PVC ndi abwino?

Mukuyang'ana mtundu, koma mtengo wotsika wa mavavu a PVC ukuwoneka ngati wabwino kwambiri kuti usakhale wowona. Mukuda nkhawa kuti kupulumutsa madola angapo tsopano kubweretsa zolephera zazikulu pambuyo pake.

Inde, mavavu apamwamba a PVC ndi abwino kwambiri ndipo amapereka phindu lapadera pa ntchito yomwe akufuna. Valavu yopangidwa bwino ya PVC yopangidwa kuchokera ku zinthu za namwali zokhala ndi zisindikizo zabwino ndi gawo lolimba komanso lodalirika pakugwiritsa ntchito madzi osawerengeka.

Kodi mavavu a PVC amalephera?

Mukufuna kukhazikitsa chigawo chomwe simuyenera kuganiziranso. Koma mbali iliyonse ili ndi malo osweka, ndipo kusadziwa kungayambitse masoka omwe angapeweke.

Inde, ma valve a mpira a PVC amatha kulephera, koma zolephera nthawi zonse zimakhala chifukwa cha kugwiritsira ntchito molakwika kapena kuyika kosayenera, osati chifukwa cha chilema cha valve yabwino. Zomwe zimayambitsa kulephera ndizozizira, kukhudzana ndi mankhwala osagwirizana kapena madzi otentha, ndi kuwonongeka kwa thupi.

Kulephera Wamba ndi Kupewa

Mapeto

Mavavu apamwamba kwambiri a PVC ndi odalirika kwambiri. Kukana kwawo kwa dzimbiri kumawapatsa mwayi waukulu kuposa zitsulo m'madzi ambiri. Posankha mankhwala abwino, mumaonetsetsa kuti ntchito yayitali, yodalirika.

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