Chidule ndi gulu la mavavu agulugufe

Vavu yagulugufe idayikidwapo ngati valavu yotayikira ndipo idangogwiritsidwa ntchito ngati mbale ya valve.
Sizinafike mpaka 1950 pomwe mphira wopangira adagwiritsidwa ntchito, ndipo mphira wopangira adagwiritsidwa ntchito pampando wa valavu ya butterfly, ndipo valavu yagulugufe monga valavu yodulidwa idayamba.

Kugawika kwa ma valve a butterfly:
Mavavu agulugufe amagawidwa molingana ndi kapangidwe kake, kulumikizana kwa mapaipi, mbale, ndi zina.

Center Disc butterfly valve:
Kapangidwe kamene mpando wapampando wakunja kwa valavu uli pamtunda womwewo ndi pakati pa tsinde la valve.
The mkati zotumphukira pamwamba pa valavu thupi ophatikizidwa ndi dongosolo la mphira mpando mphete. Ichi ndi valavu choimiridwa ndi otchedwa pakati-woboola pakati mphira mbale gulugufe valavu. Malinga ndi kukanikizidwa kwa mphira, mphamvu yothamangitsira zotanuka ya valavu yagulugufe ndi mpando wapampando imagwiritsidwa ntchito bwino, kotero kuti kusindikiza mipando yabwino ndikotheka.

Eccentric butterfly valve:
Malo ozungulira (tsinde) a diski ali pakatikati pa valavu ya valve, ndipo maziko a diski ndi mawonekedwe a eccentric. Mphete yapampando ndi yofanana ndi mawonekedwe a eccentric ndipo imakhala ndi ntchito yabwino yosindikiza.

Valve yagulugufe yamitundu itatu:
Ndikapangidwe komwe kaŵirikaŵiri kaŵirikaŵiri kumawonjezeredwa, ndipo chigawo chapakati cha gulugufe chimayang'ana pakati pa valavu awiri a chochitikacho.
Kuwoneka kwapatatu sikukhudza mphete yachitsulo yooneka ngati mbale pamene mbale yagulugufe imatsegulidwa ndi kutsekedwa, ndipo mbale yagulugufe yokhayo imakhala ndi mphamvu pampando wapampando ngati valavu yotseka ikatsekedwa kwathunthu.

Valve ya butterfly:
Vavu yagulugufe ya wafer imagwiritsa ntchito mabawuti kulumikiza valavu pakati pa nthiti ziwiri za mapaipi. Pali mitundu iwiri ya ma protrusion, mtundu wa lug wathunthu ndi mtundu wosakwanira wa lug.

Ma valve awa akhoza kukonzedwa ndi athuMakina apadera a Valve.