Ikinyugunyugu, bizwi kandi nka flap valve, ni igenzura rya valve ifite imiterere yoroshye, ishobora gukoreshwa mugucunga imiyoboro iciriritse.Ikinyugunyugu kinyugunyugu bivuga valve igice cyo gufunga (disiki ya valve cyangwa isahani yikinyugunyugu) ni disiki kandi ikazenguruka uruzitiro rwa valve kugirango ifungure kandi ifunge.
Umuyoboro urashobora gukoreshwa mugucunga imigendekere yubwoko butandukanye nkumwuka, amazi, umwuka, ibitangazamakuru bitandukanye byangirika, ibyondo, ibikomoka kuri peteroli, ibyuma byamazi nibitangazamakuru bya radio.Ikoreshwa cyane mugukata no gutembera kumuyoboro.Gufungura no gufunga igice cyibinyugunyugu ni isahani yikinyugunyugu isa na disiki, izenguruka umurongo wacyo mu mubiri wa valve, kugirango ugere ku ntego yo gufungura, gufunga cyangwa guhinduka.
Muri 1930, Amerika yahimbyeikinyugunyugu, ryinjijwe mu Buyapani mu myaka ya za 1950 kandi ntabwo ryakoreshejwe cyane mu Buyapani kugeza muri za 1960.Yazamuwe mu Bushinwa nyuma ya za 70.
Ibintu nyamukuru biranga ikinyugunyugu ni: ntoya ikora, umwanya muto wo kwishyiriraho nuburemere bworoshye.Dufashe nk'urugero rwa DN1000, ikinyugunyugu kinyugunyugu ni toni 2, mugihe irembo ry irembo rifite toni zigera kuri 3,5, naho ikinyugunyugu kiroroshye guhuzwa nibikoresho bitandukanye byo gutwara, hamwe nigihe kirekire kandi cyizewe.Ingaruka zareberi ifunze ikinyugunyuguni uko iyo ikoreshejwe mukuzunguruka, cavitation izabaho kubera gukoresha nabi, bikavamo gukuramo no kwangiza intebe.Kubwibyo, uburyo bwo guhitamo neza bigomba gushingira kubisabwa kugirango akazi gakorwe.
Isano iri hagati yo gufungura ibinyugunyugu no gutembera ahanini bihinduka kumurongo.Niba ikoreshwa mugucunga imigezi, ibiranga imigezi nayo bifitanye isano rya bugufi no kurwanya imiyoboro.Kurugero, diameter nuburyo bwa valve yashyizwe mumiyoboro ibiri irasa, kandi urujya n'uruza rwinshi ruzaba rutandukanye niba coeffisente yo gutakaza imiyoboro itandukanye.Niba valve iri muburyo bunini bwo guterana, cavitation iroroshye kugaragara inyuma yicyapa, gishobora kwangiza valve.Mubisanzwe, ikoreshwa hanze ya 15 °.Iyoikinyugunyuguni muburyo bwo gufungura hagati, imiterere yo gufungura ikorwa numubiri wa valve nu mpera yimbere yicyapa cyibinyugunyugu gishyizwe kumurongo wa valve, kandi leta zitandukanye zakozwe kumpande zombi.Impera yimbere yibisahani yikinyugunyugu kuruhande rumwe igenda yerekeza kumurongo naho urundi ruhande rugenda rwerekeza.Kubwibyo, umubiri wa valve hamwe na plaque ya valve kuruhande rumwe bigizwe nozzle nko gufungura, kurundi ruhande rusa nu mwobo wo guterura nko gufungura.Igipimo cyo gutembera kuruhande rwa nozzle kirihuta cyane kurenza kuruhande rwa trottle, umuvuduko mubi uzabyara munsi ya valve ya trottle, kandi kashe ya reberi izagwa.
Imikorere ya torque yikinyugunyugu ifite indangagaciro zitandukanye kubera gufungura no gufungura gufungura no gufunga icyerekezo.Umuyoboro wakozwe na kinyugunyugu utambitse, cyane cyane umurambararo munini wa diameter, kubera ubujyakuzimu bw'amazi no gutandukanya imitwe yo hejuru no hepfo ya shitingi ntishobora kwirengagizwa.Mubyongeyeho, iyo inkokora yashyizwe kuruhande rwimbere rwa valve, habaho kubogama, kandi torque iziyongera.Iyo valve iri gufungura hagati, uburyo bwo gukora bugomba kwifungisha bitewe nigikorwa cyamazi atemba.
Inganda za Valve zifite uruhare runini mugutezimbere ubukungu bwisi nkumuhuza winganda zikora ibikoresho.Hariho inganda nyinshi za valve mubushinwa.Muri rusange, Ubushinwa bwinjiye mu bihugu by’ibinini binini ku isi.