Valavu yoyezera madzi, yomwe imadziwikanso kuti check valve, check valve, counterflow valve, ndi valavu yomwe imatsegula ndikutseka yokha kutengera kuyenda kwa medium yokha. Ntchito yayikulu ya check valve ndikuletsa kubwerera kwa medium, kuletsa kutembenuka kwa pampu ndi drive motor, komanso kutulutsa madzi m'zidebe, ndikuteteza chitetezo cha dongosolo la mapaipi ndi zida.

Ma valve ang'onoang'ono oyeseraZingagawidwe makamaka m'magulu awiri: ma valve oyesera ozungulira (ozungulira molingana ndi pakati pa mphamvu yokoka) ndi ma valve oyesera okweza (oyenda motsatira mzere). Ma valve oyesera angagwiritsidwe ntchito pa mapaipi osiyanasiyana kutengera zinthu. Khalidwe logwira ntchito la valve yoyesera ndilakuti katundu amasintha kwambiri, kuchuluka kwa kutsegula ndi kutseka kumakhala kochepa, ndipo nthawi yogwiritsira ntchito ndi yayitali kwambiri ikayikidwa pamalo otsekedwa kapena otseguka, ndipo ziwalo zosuntha sizifunikira kuti zisunthe.

Popeza valavu yowunikira mbale ziwiri imagwiritsidwa ntchito potseka mwachangu pa ntchito zambiri, ndipo valavu yowunikira ikatsekedwa, sing'angayo ikuyenda molunjika, ndi valavu yotsekedwa, sing'angayo imatsika mofulumira kuchokera pa liwiro lalikulu la kubwerera m'mbuyo kufika pa zero, ndipo kuthamanga kumakwera mofulumira, ndiko kuti, vuto la "nyundo yamadzi" lomwe lingakhale ndi zotsatira zowononga pamakina apaipi. Pamakina oyendetsera mapaipi okhala ndi mapampu ambiri ofanana, vuto la nyundo yamadzi ya ma valve owunikira ndi lodziwika bwino.

Nyundo yamadzi ndi mtundu wa mafunde opanikizika mu kayendedwe ka nthawi yochepa mu payipi yopanikizika. Ndi vuto la kuthamanga kwa madzi lomwe limayambitsidwa ndi kusintha kwa liwiro la madzi mu payipi yopanikizika. Chifukwa chenicheni ndi zotsatira za kuphatikizana kwa kusagwirizana kwa madzi, kuchepa kwa kuyenda kwa madzi ndi kusinthasintha kwa payipi. Pofuna kupewa ngozi yobisika ya nyundo yamadzi mu payipi, kwa zaka zambiri, mainjiniya agwiritsa ntchito nyumba zatsopano ndi zipangizo zatsopano popangavalavu yoyezera chitsulo chosapanga dzimbirikuchepetsa kugwedezeka kwa nyundo yamadzi pamene mukuonetsetsa kuti valavu yoyezera ikugwira ntchito moyenera.

Valavu ya Jinbin ili ndi zaka 20 zogwira ntchito popanga mavavu, opanga mainjiniya abwino kwambiri komanso ogwira ntchito yopanga mavavu, mavavu abwino amayamikiridwa kwambiri. Tipitiliza kupereka dongosolo loyenera kwambiri logulira mavavu kwa makasitomala omwe akusowa thandizo, ndipo tikuyembekezera mgwirizano wowonjezereka!