PVC (polyvinyl chloride) ndi UPVC (unplasticized polyvinyl chloride) ndi zida zomwe zimagwiritsidwa ntchito kwambiri popanga zopangira mavavu osiyanasiyana.

PVC (polyvinyl chloride) ndi UPVC (unplasticized polyvinyl chloride) ndi zida zomwe zimagwiritsidwa ntchito kwambiri popanga zopangira mavavu osiyanasiyana. Zidazi zimadziwika chifukwa cha kulimba, kukana kwa dzimbiri, komanso kukwanitsa kukwanitsa, zomwe zimawapangitsa kukhala zosankha zotchuka pamagwiritsidwe osiyanasiyana. Chimodzi mwazinthu zomwe zimagwiritsidwa ntchito kwambiri ndi ma valve opangidwa kuchokera ku PVC ndi UPVC ndi valve ya butterfly.

Mfundo yogwirira ntchito ya valavu ya gulugufe ya PVC imachokera pa mapangidwe osavuta koma ogwira mtima. Vavu yamtunduwu imakhala ndi diski, yomwe imatchedwanso "gulugufe," yomwe imayikidwa pakati pa chitoliro. Diskiyo imagwirizanitsidwa ndi ndodo kapena shaft yomwe imapita kunja kwa valve, kulola kuti ntchito yamanja kapena yodzichitira.

Pamene valavu ili pamalo otsekedwa, diskiyo imakhala yosakanikirana ndi kutuluka kwa madzimadzi, ndikuletsa bwino njira ya mauthenga. Mosiyana ndi zimenezi, pamene valavu ili pamalo otseguka, diskiyo imakhala yofanana ndi kutuluka, zomwe zimalola kuti madzi aziyenda mopanda malire. Makina osavutawa amalola kuwongolera mwachangu komanso moyenera kayendedwe kake, kupanga mavavu agulugufe a PVC oyenera kugwiritsa ntchito zosiyanasiyana.

Kugwiritsa ntchito zida za PVC ndi UPVC pomanga ma valve agulugufe kumapereka maubwino angapo. Zidazi zimagonjetsedwa ndi dzimbiri, zomwe zimapangitsa kuti zikhale zabwino kuti zigwiritsidwe ntchito pamene valavu imakumana ndi zowawa kapena zowonongeka. Kuphatikiza apo, PVC ndi UPVC ndizopepuka komanso zosavuta kuziyika, zomwe zimawapangitsa kukhala njira yotsika mtengo pamafakitale osiyanasiyana ndi malonda.

Kuphatikiza apo, ma valve agulugufe a PVC ndi a UPVC amadziwika chifukwa cha zosowa zawo zocheperako komanso moyo wautali wautumiki, kuwapanga kukhala chisankho chodalirika pamakina owongolera madzimadzi. Ma valve awa amapezekanso mumitundu yosiyanasiyana ndi masinthidwe kuti agwirizane ndi zosowa zosiyanasiyana zoyenda komanso zofunikira zoyika.

Pomaliza, mavavu agulugufe a PVC ndi UPVC ndi zinthu zofunika kwambiri pamakina owongolera madzimadzi, zomwe zimapereka kuwongolera kodalirika komanso koyenera. Mfundo yawo yophweka koma yogwira ntchito, yophatikizidwa ndi ubwino wa zipangizo za PVC ndi UPVC, zimawapangitsa kukhala chisankho chodziwika pa ntchito zosiyanasiyana m'mafakitale monga kuthira madzi, kukonza mankhwala, ndi machitidwe a HVAC.