Valve yowunika madzi, yomwe imadziwikanso kuti check valve, check valve, counterflow valve, ndi valve yomwe imatsegula ndi kutseka malingana ndi kutuluka kwa sing'anga yokha. Ntchito yayikulu ya valavu yoyang'anira ndikuletsa kubweza kwa sing'anga, kuteteza kusinthika kwa mpope ndi galimoto yoyendetsa galimoto, komanso kukhetsa kwa media media, ndikuteteza chitetezo cha payipi ndi zida.

Ma valavu aang'onoZitha kugawidwa makamaka kukhala ma valve cheke (ozungulira molingana ndi pakati pa mphamvu yokoka) ndikukweza ma cheke valavu (akuyenda motsatira oxis). Mavavu owunika angagwiritsidwe ntchito pamapaipi amitundu yosiyanasiyana kutengera zinthu. Chikhalidwe chogwira ntchito cha valve yoyang'ana ndi chakuti katunduyo amasintha kwambiri, kutsegulira ndi kutseka pafupipafupi kumakhala kochepa, ndipo kayendetsedwe ka ntchito kamakhala kotalika kwambiri kamodzi kamene kamayikidwa mu malo otsekedwa kapena otseguka, ndipo mbali zosuntha siziyenera kusuntha.

Popeza kuti valavu yoyang'anira mbale yapawiri imagwiritsidwa ntchito kuti itseke mofulumira mu ntchito yothandiza kwambiri, ndipo nthawi yomwe valavu yoyang'anira imatsekedwa, sing'anga imayenda molunjika, ndi valavu yotsekedwa, sing'anga imatsika mofulumira kuchokera pa liwiro lalikulu la backflow mpaka zero, ndipo kuthamanga kumakwera mofulumira, ndiko kuti, chodabwitsa cha "nyundo yamadzi" chomwe chingakhale ndi zotsatira zowononga pamapaipi. Kwa makina opopera othamanga kwambiri omwe ali ndi mapampu angapo motsatana, vuto la nyundo yamadzi ya ma cheke ma valve ndi lodziwika bwino.

Nyundo yamadzi ndi mtundu wa kuthamanga kwa mafunde mumayendedwe osakhalitsa mupaipi yokakamiza. Ndi hydraulic shock chodabwitsa cha kuthamanga kwa kuthamanga kapena kutsika komwe kumachitika chifukwa cha kusintha kwa liwiro lamadzi mu payipi yokakamiza. The thupi chifukwa ndi chifukwa cha ophatikizana kanthu incompressibility wa madzimadzi, inertia wa madzimadzi kayendedwe ndi elasticity wa payipi. Pofuna kupewa ngozi yobisika ya nyundo yamadzi mu payipi, kwa zaka zambiri, mainjiniya akhala akugwiritsa ntchito zida zatsopano ndi zida zatsopano popangavalavu yachitsulo chosapanga dzimbirikuchepetsa mphamvu ya nyundo yamadzi ndikuwonetsetsa kuti valve yoyendera ikugwira ntchito.

Vavu ya Jinbin ili ndi zaka 20 zopanga mavavu, opanga uinjiniya wabwino kwambiri ndi ogwira ntchito yopanga, mavavu apamwamba amatamandidwa kwambiri. Tidzapitiriza kupereka ndondomeko yoyenera kwambiri yogulitsira ma valve kwa makasitomala omwe akusowa, ndikuyembekezera mgwirizano wambiri!