Muenzaniso wekutanga wakafanana nebhora vharafuivharuvhu ine patented naJohn Warren muna 1871. Ivharuvhu yesimbi ine bhora rendarira nechigaro chendarira. Warren akazopa dhizaini yake yedhizaini yebhora rendarira kuna John Chapman, mukuru weChapman Valve Company. Chero chikonzero, Chapman haana kumboisa dhizaini yaWarren mukugadzira. Pane kudaro, iye nevamwe vagadziri vevharuvhu vave vachishandisa magadzirirwo ekare kwemakore mazhinji.

Mavharuvhu ebhora, anonziwo mavharuvhu ebhora, akazopedzisira aita basa munguva yeHondo Yenyika II. Munguva iyi, mainjiniya akaigadzira kuti ishandiswe mumauto emafuta masisitimu endege. Mushure mekubudirira kwebhora mavharuvhumuHondo Yenyika II, mainjiniya akashandisa mavharuvhu ebhora kumaindasitiri ekushandisa.

Imwe yezvakanyanya kukosha zvine chekuita nemavharuvhu ebhora muma1950 yaive kuvandudzwa kweTeflon uye kushandiswa kwayo kwakazotevera sechinhu chevhavha yebhora. Mushure mekubudirira kwebudiriro yeTeflon, mabhizinesi mazhinji akadai seDuPont akarwira kodzero yekuishandisa, nekuti vaiziva kuti Teflon yaigona kuunza mabhenefiti makuru emusika. Pakupedzisira, kambani inopfuura imwe yakakwanisa kugadzira mavharuvhu eTeflon. Teflon bhora mavharuvhu anochinjika uye anogona kugadzira zvisimbiso zvakanaka mumativi maviri. Mune mamwe mazwi, ivo vari bidirectional. Iwo zvakare leak proof. Muna 1958, Howard Freeman ndiye aive mugadziri wekutanga kugadzira vharafu yebhora ine chigaro chinochinjika cheTeflon, uye dhizaini yake yaive nemvumo.

Nhasi, mavharuvhu ebhora akagadzirwa nenzira dzakawanda, kusanganisira kuenderana kwavo kwezvinhu uye maapplication anogoneka. Mukuwedzera, vanogona kushandisa CNC machining uye purogiramu yekombiyuta (yakadai seButton model) kugadzira mavharuvhu akanaka. Nenguva isipi, vagadziri vevhavha yebhora vachakwanisa kupa sarudzo dzakawanda dzezvigadzirwa zvavo, kusanganisira kuvaka kwealuminium, kusapfeka zvishoma uye hukuru hwekugwinya, izvo zvinobvumira vashandi kuti vapfuure huwandu hwakasiyana hwemvura kuburikidza nevhavha pahuwandu hwekuyerera.

application

Chinangwa chevhavha yebhora ndechekugadzirisa kuyerera kwemvura. Vanogona kuita izvi munzira dzakawanda. Vanogona kugadzirisa mamwe marudzi emavharuvhu ekuyerera, kupa kudzivirira kwekudzoka kwemavharuvhu ane swing cheki magungano, kutsaura sisitimu, uye kupa kuvharika kwakazara kwevashandisi vegiya.

Nekuti anogona kudzorwa nemaoko kana nemagetsi, mavharuvhu ebhora anogona kushandira maapplication ane akasiyana siyana.

Kazhinji, mavharuvhu ebhora anoshandiswa kuvhura nekuvhara mapaipi ane zvakaturikwa solids, slurries, zvinwiwa kana magasi. Mamwe maapplication ayo mavharuvhu ebhora anowanzoshandiswa anosanganisira pombi masisitimu, midziyo, uye maturusi anenge ese maindasitiri anotakura zvinwiwa. Unogona kuvawana chero kupi zvako kubva kufekitari pasi kusvika kune pombi mumba mako. Maindasitiri anoshandisabhora mavharuvhuzvinosanganisira kugadzira, migodhi, oiri uye gasi, kurima, kudziyisa uye kutonhora, maindasitiri uye emba mapaipi, mvura, zvinhu zvevatengi, kuvaka, nezvimwe.