Muchirongwa chemvura, vharuvhu inoshandiswa kudzora gwara, kudzvanywa uye kuyerera kwemvura.Mukugadzirisa kwekuvaka, hutano hwekuiswa kwevhavha hunobata zvakananga kushanda kwakajairika mune ramangwana, saka inofanira kukoshesa zvikuru nechikwata chekuvaka uye chikwata chekugadzira.

Ivhavha ichaiswa maererano nebhuku rekushanda kwevhavha uye mitemo yakakodzera.Mukugadzira, kunyatsoongorora uye kuvaka kuchaitwa.Pamberi pekuiswa kwevhavha, kuiswa kuchaitwa mushure mekuedzwa kwekumanikidzwa kwakakodzera.Nyatsoongorora kana tsanangudzo uye muenzaniso wevhavha inopindirana nekudhirowa, tarisa kana zvikamu zvose zvevhavha zviri mumamiriro ezvinhu akanaka, kana kuvhara nekuvhara valve kunogona kutenderera zvakasununguka, kana nzvimbo yekuvhara yakakanganiswa, nezvimwewo mushure mekusimbiswa, kuiswa kunogona kuitwa.

Kana iyo valve yaiswa, nzira yekushanda yevhavha inofanira kunge inenge 1.2m kubva panzvimbo yekushanda, iyo inofanira kunge yakasvibiswa nebhokisi.Apo pakati pevhavha uye handwheel iri kupfuura 1.8m kubva panzvimbo yekushanda, nzvimbo yekushanda ichagadzirirwa yevhavha nevhavhavha yekudzivirira nekushanda kwakawanda.Pamapaipi ane mavharuvhu akawanda, mavharuvhu achaiswa papuratifomu zvakanyanya sezvinobvira kuti zvive nyore kushanda.

Kune vharafu imwe inopfuura 1.8m uye isingawanzo shandiswa, midziyo yakaita sevhiri reketani, tsvimbo yekuwedzera, chikuva chinofambiswa uye manera anofambiswa anogona kushandiswa.Kana vheji ichiiswa pasi penzvimbo yekushanda, tsvimbo yekuwedzera ichagadziriswa, uye vheji yevhu ichaiswa pasi zvakanaka.Nekuda kwekuchengetedza, tsime revhu richavharwa.

Kune hunde yevharuvhu papombi yakachinjika, zviri nani kudzika kumusoro, pane kudzika kuisirwa hunde yevharuvhu.Irovhavha hunde inoiswa pasi, izvo zvisingaite pakushanda nekugadzirisa, uye zviri nyore kukanganisa valve.Ivhavha yekumhara haifaniri kuiswa askew kudzivirira kushanda kusina kunaka.

Mavharuvhu ari padivi-ne-parutivi pombi achave nenzvimbo yekushanda, kugadzirisa uye disassembly.Nzvimbo yakajeka pakati pemavhiri emaoko haifaniri kunge iri pasi pe100mm.Kana iyo nzvimbo yepombi yakamanikana, mavharuvhu anofanira kuderedzwa.

Kune mavharuvhu ane simba guru rekuvhura, simba rakaderera, brittleness yakakwirira uye uremu hunorema, valve yekutsigira valve inofanira kuiswa isati yaiswa kuderedza kutanga kunetseka.

Pakuisa vheji, mbariro dzepombi dzinoshandiswa kune mapaipi ari padyo nevhavha, nepowo ma spanners akajairwa achashandiswa kuvhavha pachayo.Panguva imwecheteyo, panguva yekuiswa, valve ichave iri muhafu yakavharwa mamiriro ekudzivirira kutenderera uye deformation yevhavha.

Kuiswa kwakarurama kwevhavha kuchaita kuti fomu yemukati yemukati ienderane nekuyerera kwepakati, uye fomu yekuisa inopindirana nezvinodiwa zvakakosha uye zvinodiwa zvekushanda kwechimiro chevhavha.Muzviitiko zvakakosha, teerera kune kuiswa kwemavharuvhu ane yepakati kuyerera zvinodiwa zvinoenderana nezvinodiwa process pipeline.Kurongeka kwevhavha kuchava nyore uye kunonzwisisika, uye mufambisi achave nyore kuwana valve.Kune vharafu inosimudza, nzvimbo yekushanda ichachengetwa, uye madzinde evharuvhu emavharuvhu ese achaiswa kumusoro sezvinobvira uye perpendicular kune pombi.