Kusankha pakati pa CPVC ndi PVC kungapangitse kapena kuwononga makina anu a mapaipi. Kugwiritsa ntchito zinthu zolakwika kungayambitse kulephera, kutayikira madzi, kapena kuphulika koopsa mukapanikizika.

Kusiyana kwakukulu ndi kupirira kutentha - CPVC imasamalira madzi otentha mpaka 93°C (200°F) pomwe PVC imaletsa kutentha mpaka 60°C (140°F).Ma valve a CPVCKomanso ndi okwera mtengo pang'ono ndipo ali ndi mphamvu yolimbana ndi mankhwala chifukwa cha kapangidwe kake ka chlorine.

Poyamba, ma valve apulasitiki awa amawoneka ofanana kwambiri. Koma kusiyana kwawo kwa mamolekyulu kumapanga mipata yofunika kwambiri yogwirira ntchito yomwe wopanga aliyense ndi wokhazikitsa ayenera kumvetsetsa. Mu ntchito yanga ndi makasitomala ambiri monga Jacky, kusiyana kumeneku nthawi zambiri kumabwera pogwira ntchito ndi madzi otentha komwe kumakhala koyenera.PVCKlorini wowonjezera muCPVCImapatsa mphamvu zowonjezera zomwe zimapangitsa kuti mtengo wake ukhale wokwera nthawi zina, pomwe PVC yokhazikika imakhalabe chisankho chotsika mtengo pamakina okhazikika amadzi.

Kodi chimachitika ndi chiyani ngati mugwiritsa ntchito PVC m'malo mwa CPVC?

Kusunga ndalama pang'ono kungayambitse kulephera kwakukulu. Kusankha PVC komwe CPVC ikufunika kungayambitse kusokonekera, kusweka, komanso kutayika kwa mphamvu m'makina otentha.

Kugwiritsa ntchito PVC poika madzi otentha (oposa 60°C/140°F) kungapangitse kuti pulasitiki ifewetseke ndikusokonekera, zomwe zimapangitsa kuti madzi atuluke kapena kulephera kwathunthu. Nthawi zina, valavu imatha kuphulika chifukwa cha kupanikizika ikafooka ndi kutentha, zomwe zingayambitse kuwonongeka kwa madzi ndi ngozi zachitetezo.

Ndikukumbukira nkhani yomwe kasitomala wa Jacky anaika ma valve a PVC mu makina ochapira zovala kuti asunge ndalama. Pasanathe milungu ingapo, ma valve anayamba kupindika ndi kutuluka madzi. Ndalama zokonzera zinapitirira ndalama zomwe zinasungidwa poyamba. Kapangidwe ka mamolekyu a PVC sikangathe kuthana ndi kutentha kwambiri - unyolo wa pulasitiki umayamba kusweka. Mosiyana ndi mapaipi achitsulo, kufewa kumeneku sikuoneka mpaka kulephera. Ichi ndichifukwa chake malamulo omangira amalamulira bwino komwe zipangizo zilizonse zingagwiritsidwe ntchito.

Kodi ubwino wa valavu ya mpira wa PVC ndi wotani?

Pulojekiti iliyonse imakumana ndi mavuto a bajeti, koma simungathe kunyalanyaza kudalirika.Ma valve a PVCkhalani ndi mgwirizano wabwino kwambiri pamene zinthu zikuyenda bwino.

Ma valve a PVC amapereka mtengo wotsika kwambiri, kuyika kosavuta, komanso kukana dzimbiri bwino poyerekeza ndi njira zina zachitsulo. Ndi otsika mtengo ndi 50-70% kuposa CPVC pomwe amapereka magwiridwe antchito abwino kwambiri pogwiritsira ntchito madzi ozizira.

Pa makina ozizira, palibe phindu lina kuposa PVC. Malumikizidwe awo a solvent-weld amapanga maulumikizidwe othamanga komanso odalirika kuposa zolumikizira zachitsulo zolumikizidwa, zomwe zimachepetsa ndalama zogwirira ntchito. Mosiyana ndi chitsulo, sizimawononga kapena kusonkhanitsa mchere wambiri. Ku Pntek, tapanga njira yathu yopangira zinthu zatsopano.Ma valve a PVCndi matupi olimba omwe amasunga umphumphu wawo ngakhale patatha zaka zambiri akugwiritsidwa ntchito. Kwa mapulojekiti monga a Jackynjira zothirira zaulimiPamene kutentha sikuli vuto, PVC ikadali chisankho chanzeru kwambiri.

Chifukwa chiyani CPVC sigwiritsidwanso ntchito?

Mungamve zonena kuti CPVC ikutha ntchito, koma zoona zake n'zakuti zinthu zakuthupi sizikuchotsa ubwino wake wapadera.

CPVC ikugwiritsidwabe ntchito kwambiri koma yasinthidwa ndi PEX ndi zipangizo zina m'nyumba zina chifukwa cha mtengo wake. Komabe, ikadali yofunika kwambiri pamakina amadzi otentha amalonda komwe kutentha kwake kwakukulu (93°C/200°F) kumaposa njira zina.

Ngakhale kuti PEX yatchuka kwambiri pa ntchito yokonza mapaipi apakhomo, CPVC ili ndi malo olimba m'magawo atatu ofunikira:

1. Nyumba zamalonda zokhala ndi makina osungira madzi otentha pakati
2. Ntchito zamafakitale zomwe zimafunakukana mankhwala
3. Mapulojekiti okonzanso zinthu mogwirizana ndi zomangamanga za CPVC zomwe zilipo kale

Muzochitika izi, kuthekera kwa CPVC kuthana ndi kutentha ndi kupanikizika popanda mavuto a dzimbiri a chitsulo kumapangitsa kuti ikhale yosasinthika. Lingaliro lakuti itha limakhala lokhudza kusintha kwa msika m'nyumba osati kutha ntchito kwaukadaulo.

Kodi zolumikizira za PVC ndi CPVC zimagwirizana?

Kusakaniza zinthu kumaoneka ngati njira yosavuta, koma kuphatikiza kosayenera kumapanga zofooka zomwe zimaika pangozi machitidwe onse.

Ayi, sizigwirizana mwachindunji. Ngakhale zonse zimagwiritsa ntchito zowotcherera zosungunulira, zimafuna simenti zosiyanasiyana (simenti ya PVC siingagwirizanitse bwino CPVC ndi mosemphanitsa). Komabe, pali zolumikizira zosinthira zomwe zingagwiritsidwe ntchito polumikiza zinthu ziwirizi mosamala.

Kusiyana kwa kapangidwe ka mankhwala kumatanthauza kuti simenti zawo zosungunulira sizimasinthasintha:

• Simenti ya PVC imasungunula pamwamba pa PVC kuti pakhale mgwirizano
• Simenti ya CPVC ndi yolimba kwambiri poganizira kapangidwe kake kolimba

Kuyesa kukakamiza kugwirizana kumabweretsa zolumikizira zofooka zomwe zingapambane mayeso opanikizika poyamba koma zikalephera pakapita nthawi. Ku Pntek, nthawi zonse timalangiza:

1. Kugwiritsa ntchito simenti yoyenera pa mtundu uliwonse wa zinthu
2. Kukhazikitsa zolumikizira zoyenera zosinthira pamene kulumikizana kuli kofunikira
3. Kulemba zilembo zonse momveka bwino kuti zisasokonezeke

Mapeto

Ma valve a mpira a PVC ndi CPVC amagwira ntchito zosiyanasiyana koma zofunika mofanana—PVC ya makina ozizira otsika mtengo komanso CPVC ya makina otentha omwe amagwiritsidwa ntchito kwambiri. Kusankha bwino kumatsimikizira kuti ntchito yake ndi yotetezeka komanso yokhalitsa. Nthawi zonse gwirizanitsani valavu ndi kutentha ndi mankhwala omwe amagwiritsidwa ntchito ndi makina anu kuti mupeze zotsatira zabwino.