Ntchito yanga yaposachedwa inali kudziwa kuti ndi valavu iti ya mpira yomwe iyenera kugwiritsidwa ntchito m'malo mwa valavu yakale ya mpira yomwe ili m'khola. Nditayang'ana mitundu yosiyanasiyana ya zinthu ndikudziwa kuti ingalumikizidwe ndi chitoliro cha PVC, mosakayikira ndinkafunafunaValavu ya mpira wa PVC.

Pali mitundu itatu yosiyanasiyana ya ma valve a mpira wa PVC, iliyonse ili ndi ubwino wake. Mitundu itatuyi ndi yaying'ono, yolumikizidwa komanso ya CPVC. Mu blog iyi, tifufuza zomwe zimapangitsa mtundu uliwonse kukhala wapadera komanso ubwino womwe uli nawo.

Valavu ya Mpira wa PVC Yochepa
Vavu ya mpira wa PVC yaying'ono imapangidwa pogwiritsa ntchito njira yopangira nkhungu yomwe yafotokozedwa mu blog yathu ya Construction Methods. Kugwiritsa ntchito njira yapaderayi yopangira pulasitiki mozungulira mpira ndi tsinde kumapereka maubwino angapo. Mpira wodzaza umagwiritsidwa ntchito, koma palibe msoko mu valavu chifukwa uyenera kuwonjezedwa kuchokera mbali imodzi. Izi zimapangitsa valavu kukhala yolimba komanso yopapatiza popanda kulepheretsa kuyenda. Vavu ya mpira wa PVC yaying'ono imapezeka mu IPS (Kukula kwa Chitoliro cha Iron) ndi zolumikizira zotsetsereka za chitoliro cha Schedule 40 ndi 80.

Popeza ndi valavu yolimba komanso yolimba, ndi yabwino kwambiri pa ntchito zosiyanasiyana zoperekera madzi. Mukafuna valavu yotsika mtengo, valavu ya mpira ya PVC yaying'ono ndi chisankho chabwino kwambiri.

Mgwirizano wa PVC Mpira Valavu
Mapangidwe a Union amaphatikiza ma union pa kulumikizana kumodzi kapena zonse ziwiri kuti alole kukonza valavu mkati mwa mzere popanda kuichotsa paipi. Palibe zida zapadera zokonzera zomwe zimafunika, chifukwa chogwiriracho chili ndi zingwe ziwiri za sikweya zomwe zimalola chogwiriracho kugwiritsidwa ntchito ngati wrench yosinthika. Pakufunika kukonza valavu, mphete yosungira ulusi ikhoza kusinthidwa kapena kuchotsedwa pogwiritsa ntchito chogwiriracho kuti musinthe chisindikizo kapena kusintha mphete ya O.

Dongosolo likamapanikizika, mgwirizano ukangophwanyidwa, mgwirizano wotsekedwa udzaletsa mpira kukankhidwira kunja, ndipo mgwirizano wa zachuma sudzakhala ndi choletsa mpira kukankhidwira kunja.

Kodi mukudziwa? Ma valve a mpira a PVC opapatiza komanso ophatikizana amapezeka pamakina a Schedule 40 ndi Schedule 80 chifukwa ma rating awa amatanthauza makulidwe a khoma la mapaipi.Ma valve a mpira wa PVCamayesedwa pa kupanikizika osati makulidwe a khoma, zomwe zimapangitsa kuti akhale oyenera mapaipi a Schedule 40 ndi Schedule 80. M'mimba mwake wakunja wa machubu awiriwa amakhalabe womwewo, ndipo m'mimba mwake wamkati umachepa pamene makulidwe a khoma akuwonjezeka. Kawirikawiri, chitoliro cha Schedule 40 ndi choyera ndipo chitoliro cha Schedule 80 ndi cha imvi, koma valavu iliyonse yamtundu ingagwiritsidwe ntchito mu makina aliwonse.

Valavu ya mpira wa CPVC
Ma valve a mpira a CPVC (chlorinated polyvinyl chloride) amapangidwa mofanana ndi ma valve ang'onoang'ono, ndipo pali kusiyana kwakukulu kuwiri; kutentha ndi maulumikizidwe.Ma valve a mpira wa CPVCAmapangidwa ndi PVC yokhala ndi chlorine, yomwe imawathandiza kupirira kutentha kwambiri. Ma valve awa amapangidwira kugwiritsa ntchito madzi otentha mpaka 180°F.

Cholumikizira pa valavu ya mpira wa CPVC ndi CTS (kukula kwa chubu cha mkuwa), chomwe chili ndi kukula kochepa kwambiri kwa chitoliro kuposa IPS. CTS idapangidwira makina amadzi otentha ndi ozizira, ngakhale imagwiritsidwa ntchito makamaka pamizere yamadzi otentha.

Ma valve a mpira wa CPVC ali ndi mtundu wa beige kuti awasiyanitse ndi ma valve oyera oyera omwe amakhala ndi kutentha kwakukulu ndipo ndi abwino kwambiri potenthetsera monga zotenthetsera madzi.

Ma valve a mpira a PVC ndi chisankho chabwino kwambiri pa ntchito zosiyanasiyana za mapaipi, okhala ndi njira zosiyanasiyana zosamalira komanso kutentha kwambiri. Ma valve a mpira amapezekanso mu mkuwa ndi chitsulo chosapanga dzimbiri, kotero pali valve ya mpira pa ntchito iliyonse yomwe imafunika kuwongolera kuyenda kwa madzi.