Vavu yagulugufe yamoto yokhazikika Yokhazikika Pamalo a Gulugufe, imatchedwanso "concentric", "rabala yopangidwa ndi mphira" ndi "rabara yokhala" butterfly valve, ili ndi mpando wa rabara (kapena wokhazikika) pakati pa kunja kwa disc ndi khoma lamkati la valve.

Valavu ya butterfly ndi valavu yotembenukira kotala yomwe imazungulira madigiri 90 kuti mutsegule kapena kutseka kutulutsa kwa media.Lili ndi diski yozungulira, yomwe imadziwikanso kuti butterfly, yomwe imapezeka pakatikati pa thupi lomwe limagwira ntchito ngati njira yotseka valve.Chimbalecho chimalumikizidwa ndi actuator kapena chogwirira kudzera mu shaft, yomwe imadutsa kuchokera ku diski kupita pamwamba pa thupi la valve.

Valavu ya butterfly imagwiritsidwanso ntchito ngati valavu yowongolera kuthamanga, ngati diskiyo sizungulira mpaka kotala, zikutanthauza kuti valavu yatseguka pang'ono, titha kuyang'anira kutuluka kwamadzi ndi ngodya zosiyanasiyana zotsegulira.

(Tchati ya CV/KV ya valavu yagulugufe yokhazikika yokhala pansi ikupezeka mukapempha)

Resilient Seated Butterfly Valve Lug mtundu,mawonekedwe ophatikizika kwambiri okhala ndi nkhope zazifupi ndi maso. amakwanira pakati pa ma flanges awiri, okhala ndi zingwe zodutsa kuchokera ku flange imodzi kupita kwina.Valavu imagwiridwa ndikusindikizidwa ndi gasket chifukwa cha kugwedezeka kwa ma studs. Mtundu wokhazikika wokhala ndi butterfly valve lug ndi wopepuka, wopanda kukonza, wotchipa, komanso wodalirika yothetsera ntchito zosiyanasiyana.

Vavu ya butterfly yoyendetsedwa ndi injini,nthawi zambiri amagwiritsidwa ntchito pomwe valavu ili kumapeto kwa chitoliro popeza palibe 2nd flange yotetezera ma studs.M'malo mwake, zipilala zimaponyedwa pa valavu yokhala ndi mabowo okhomedwa omwe amafanana ndi mtundu wa bawuti wa kukula ndi kukakamiza kwa flange.Maboti amadutsa m'mabowo a flange ndipo amakongoleredwa m'mabowo otsekedwa a lug.