Check valve, inozivikanwawo seimwe nzira yekutarisa vharafu. Basa rayo guru nderokudzivirira kudzoka shure kwepakati uye kuchengetedza kushanda kwakachengeteka kwemidziyo uye pipeline system.Mvura yekuongorora mavharuvhuanoshandiswa zvakanyanya mupetroleum, indasitiri yemakemikari, kurapwa kwemvura, simba remagetsi, simbi uye mamwe minda.

Kune akawanda marudzi echeki mavharuvhu, zvinoenderana neyakasiyana dhizaini uye misimboti yekushanda, inogona kukamurwa kuita yekusimudza mhando, swing type,butterfly cheki vharafu, rudzi rwebhora zvichingodaro. Pakati pavo, thesimudza cheki valvendiyo yakajairika, iyo ine mukati mevhavha flap inogona kusimudzwa, uye kana iyo yepakati ichiyerera ichibva painopinda ichienda kune inobuda, iyo vharafu yevhavha yakavharwa yakavhurika; Kana iyo yepakati ichiyerera ichidzokera kumashure, disc yakavharwa kudzivirira kudzoka.

Kuti uve nechokwadi chekushanda kwakajairika kweiyoStainless cheki vharafuuye kuwedzera hupenyu hwayo hwebasa, kuchengetedza kwezuva nezuva kwakakosha zvikuru. Heano mamwe emazuva ese ekuchengetedza ruzivo rwecheki mavharuvhu:

1.Kuongorora nguva dzose

Tarisa kutaridzika kwevhavhavha yekutarisa nguva dzose kuti uone kana pane kuputika, deformation, corrosion uye zvimwe zviitiko. Panguva imwecheteyo, tarisa chisimbiso che disc uye chigaro kuti uone kuti hapana kubuda.

2.Kuchenesa

Nguva dzose uchenese mukati nekunze kwevhavha yekutarisa kubvisa tsvina uye tsvina. Paunenge uchichenesa, kusarerekera kwekuchenesa mumiririri kunofanirwa kushandiswa kudzivirira kushandiswa kwezvinhu zvinopisa senge yakasimba acid uye alkali.

3.Kutsiva zvikamu zvakakanganiswa

Kana dhisiki yevhavha, chigaro uye zvimwe zvikamu zvevhavha yecheki zvakawanikwa zvakakuvadzwa kana zvakakomba zvakapfekwa, zvinofanira kuchinjwa munguva. Dzorera nemaitiro akafanana uye mienzaniso yezvikamu zvepakutanga kuti uone kuti kushanda kwevhavha hakukanganisi.

4.Lubrication

Kune mamwe mavharuvhu echeki anoda kuzorwa, huwandu hwakakodzera hwemafuta ekuzora kana girizi hunofanirwa kuwedzerwa nguva nenguva kuchengetedza hunde nechigaro zvakanatswa.

5.Anti-corrosion kurapwa

Kune mutsara wekutarisa vharuvhu inoshandiswa munzvimbo inoparadza, matanho anoenderana neanopesana necorrosion anofanirwa kutorwa, akadai sekupfekedza anti-corrosion layer uye kusarudza corrosion resistant materials.

Kuburikidza nematanho ekugadzirisa ezuva nezuva ari pamusoro, unogona kuve nechokwadi chekushanda kwevhavhavha yecheki uye kuwedzera hupenyu hwebasa, uye kupa chivimbiso chakasimba chekuchengetedzwa kwemidziyo uye pipeline system.