Mavharuvhu maviri ebhoraisarudzo yakakurumbira mumaindasitiri mazhinji uye ekutengesa maapplication, kunyanya kana uchidzora kuyerera kwemvura. Mavharuvhu aya ndearudzi rwekota-turn valveiyo inoshandisa bhora risina buri, rine maburi, uye rinotenderera kudzora kuyerera kwemvura, mweya, oiri, uye zvimwe zvinwiwa zvakasiyana-siyana. Kune maviri-chidimbu bhora mavharuvhu, PVC chinhu chakajairika nekuda kwekugara kwayo uye kushorwa kwemarara.

Basa revhavha yebhora-mbiri iri nyore asi inoshanda. Kana mubato wevharuvhu uchitenderedzwa, bhora mukati mevharuvhu rinotenderera kubvumira kana kudzivirira kuyerera kwemvura. Izvi zvinoita kuti ive yakanaka kune maapplication anoda kunyatso kudzora kuyerera. Ivhavhavha yebhora-mbiri yakagadzirwawo kuti ive nyore kuchengetedza nekugadzirisa, zvichiita kuti ive mhinduro inodhura kune maindasitiri akawanda.

Kune PVC maviri-chidimbu bhora mavharuvhu, nyaya iyi ine zvakawanda zvakanakira. PVC (kana polyvinyl chloride) chinhu che thermoplastic chinozivikanwa nekunaka kwemakemikari kuramba, zvichiita kuti ive yakanakira maapplication apo mavharuvhu anosangana nemhando dzemvura. Uyezve,PVC yakareruka uye iri nyore kuisa nekubata. Iyo zvakare yakasimba zvakanyanya, ichiita kuti ive yenguva refu uye yakavimbika sarudzo kune maviri-chidimbu bhora mavharuvhu.

Rimwe remabasa anokosha evhavhavha yebhora-chidimbu ndeyekupa kuvharwa kwakasimba. Dhizaini yevhavha inogadzira chisimbiso chakachengeteka kana yakavharwa, ichidzivirira chero kubuda kwemvura inodzorwa. Izvi zvakakosha mumashandisirwo apo kuvuza kunodhura kana kune ngozi. Iyo PVC zvinhu zvinoshandiswa muzvidimbu zviviri zvebhora mavharuvhu zvinovimbisa kuti vharafu inoramba yakavharwa zvakasimba kwenguva yakareba, kunyange kana ichiiswa kune makemikari ane hutsinye kana kutonhora kwakanyanya.

Chimwe chinhu chakakosha chevhavha yebhora-mbiri ndiko kugona kudzora kuyerera kwemvura. Nekungoshandura mubato, chiyero chekuyerera chinogona kugadziriswa kuti chizadzise zvinodiwa zvechikumbiro. Iyi nhanho yekutonga yakakosha mumaindasitiri mazhinji, kubva pamichina yekuchenesa mvura kuenda kunzvimbo dzekurapa makemikari. Iyo PVC zvinhu zvinoshandiswa mune maviri-chidimbu bhora mavharuvhu anovimbisa kuti anogona kusangana nekuyerera kwemitemo zvinodiwa zveakasiyana maapplication.

Maviri-chidimbu bhora mavharuvhu zvakare ane mukana wekuve nyore kupatsanura nekuchengetedza. Izvi zvinonyanya kuitika kune PVC maviri-chidimbu bhora mavharuvhu, uko zvinhu zvisingaremi uye zvinogara zvivakwa zvinoita kuti mabasa ekugadzirisa nekugadzirisa ave nyore uye anodhura. Izvi, pamwe chete neyakaomesesa yekuvhara-kure uye kuyerera kwekudzora masimba, inoita kuti PVC maviri-chidimbu bhora vharafu ive yakavimbika uye inoshanda sarudzo yeakasiyana maapplication.

Muchidimbu, basa revhavha yebhora-maviri (kunyanya imwe yakagadzirwa nePVC) ndeyekupa kuvharwa kwakasimba, kugadzirisa kuyerera kwemvura, uye kuve nyore kuchengetedza. Paunenge uchidzora kuyerera kwemvura, mhepo kana makemikari, maviri-chidimbu bhora mavharuvhu isarudzo inosiyana uye yakavimbika kune akawanda maindasitiri. Dhizaini yaro yakapfava asi inoshanda pamwe chete nezvakanakira zvePVC zvinhu zvinoita kuti ive mhinduro yakanaka kune dzakasiyana siyana dzekushandisa.