Check valve, yomwe imadziwikanso kutinjira imodzi valavu.Ntchito yake yayikulu ndikuletsa kubwereranso kwapakati ndikuteteza magwiridwe antchito otetezeka a zida ndi mapaipi.Ma valve owunika madziamagwiritsidwa ntchito kwambiri mu petroleum, makampani mankhwala, mankhwala madzi, mphamvu yamagetsi, zitsulo ndi zina.

Pali mitundu yambiri ya ma valve cheke, malinga ndi kapangidwe kake ndi mfundo zogwirira ntchito, zitha kugawidwa m'magulu okweza, mtundu wa swing,valavu ya butterfly, mtundu wa mpira ndi zina zotero.Mwa iwo, ndivalavu yowunikirandizofala kwambiri, zomwe zimakhala ndi valavu yamkati yomwe imatha kukwezedwa, ndipo pamene sing'anga imayenda kuchokera kumalo olowera kupita kumtunda, valavu ya valve imatsegulidwa;Pamene sing'anga imayenda mozungulira, diski imatsekedwa kuti iteteze kubwereranso.

Pofuna kuonetsetsa ntchito yachibadwa yavalavu yopanda bangandikukulitsa moyo wake wautumiki, kusamalira tsiku ndi tsiku ndikofunikira kwambiri.Nazi zina zodziwa zosamalira tsiku ndi tsiku za ma cheki ma valve:

1.Kuyendera nthawi zonse

Yang'anani maonekedwe a valavu yowunikira nthawi zonse kuti muwone ngati pali ming'alu, mapindikidwe, dzimbiri ndi zochitika zina.Panthawi imodzimodziyo, yang'anani chisindikizo cha diski ndi mpando kuti muwonetsetse kuti palibe kutaya.

2.Kuyeretsa

Nthawi zonse muzitsuka mkati ndi kunja kwa valavu ya cheke kuti muchotse zinyalala ndi zonyansa.Poyeretsa, osalowerera ndale ayenera kugwiritsidwa ntchito popewa kugwiritsa ntchito zinthu zowononga monga asidi amphamvu ndi alkali.

3.Bwezerani zigawo zowonongeka

Ngati diski ya valve, mpando ndi mbali zina za valavu ya cheke zikupezeka kuti zawonongeka kapena zowonongeka kwambiri, ziyenera kusinthidwa nthawi.Bwezerani ndi ndondomeko zomwezo ndi zitsanzo za zigawo zoyambirira kuti muwonetsetse kuti ntchito ya valve siikhudzidwa.

4.Kupaka mafuta

Pa ma valavu ena omwe amafunikira kupakidwa mafuta, mafuta odzola kapena girisi oyenera ayenera kuwonjezeredwa pafupipafupi kuti tsinde ndi mpando zikhale zopaka bwino.

5.Anti- dzimbiri mankhwala

Pa valavu yoyang'ana mzere yomwe imagwiritsidwa ntchito pamalo owononga, njira zotsutsana ndi dzimbiri ziyenera kutengedwa, monga kuphimba anti-corrosion wosanjikiza ndikusankha zida zolimbana ndi dzimbiri.

Kupyolera muzitsulo zomwe zili pamwambazi zokonzekera tsiku ndi tsiku, mukhoza kuonetsetsa kuti valavu yoyang'ana ikugwira ntchito bwino ndikuwonjezera moyo wautumiki, ndikupereka chitsimikizo cholimba cha chitetezo cha zipangizo ndi mapaipi.