Mu ntchito zamafakitale, kusankha ma valavu kumathandiza kwambiri pakuonetsetsa kuti makinawo akugwira ntchito bwino komanso kudalirika. Vavu yodziwika kwambiri m'zaka zaposachedwa ndi valavu ya gulugufe ya double flange triple eccentric. Kapangidwe katsopano ka valavu kameneka kamapereka zabwino zambiri, zomwe zimapangitsa kuti ikhale chisankho choyamba m'mafakitale osiyanasiyana.

Choyamba, kapangidwe kapadera ka valavu ya gulugufe ya double flange triple eccentric kamapangitsa kuti ikhale yosiyana ndi mavalavu a gulugufe achikhalidwe. Kapangidwe ka "triple eccentric" kamatanthauza zinthu zitatu zosiyana zomwe zilipo mu kapangidwe ka valavu, kuphatikizapo shaft eccentric, cone centerline eccentric ndi sealing surface eccentric. Kapangidwe kameneka kamapereka chisindikizo chopanda mpweya ngakhale pakugwiritsa ntchito mphamvu zambiri komanso kutentha kwambiri. Kapangidwe ka triple-eccentric kamachepetsanso kuwonongeka kwa zigawo za chisindikizo, zomwe zimapangitsa kuti ntchito ikhale yayitali komanso kuchepetsa zosowa zosamalira.

Kuwonjezera pa kapangidwe kake ka three-eccentric, kapangidwe ka valavu ya dual-flange kamapereka zabwino zingapo. Kapangidwe ka dual-flange ndi kosavuta kuyika ndi kusamalira chifukwa valavu imatha kuyikidwa mosavuta pakati pa flange popanda kufunikira zowonjezera kapena kulinganiza. Izi zimapangitsa valavu kukhala yoyenera kugwiritsidwa ntchito komwe kuli malo ochepa kapena komwe kumafunika kukhazikitsa mwachangu komanso kogwira mtima.

Ubwino wina waukulu wa valavu ya gulugufe ya double flange triple offset ndi kusinthasintha kwake. Mavalavu amenewa ndi oyenera kugwiritsidwa ntchito m'njira zosiyanasiyana kuphatikizapo mafuta ndi gasi, petrochemical, kupanga magetsi ndi kuyeretsa madzi. Kutha kwake kuthana ndi kupsinjika kwakukulu ndi kutentha kumapangitsa kuti ikhale chisankho chodalirika m'malo ovuta kwambiri m'mafakitale. Kuphatikiza apo, mphamvu yotsekera mpweya ya valavuyi imapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito komwe kupewa kutayikira ndikofunikira, monga pogwira zakumwa zapoizoni kapena zoopsa.

Kuphatikiza apo, valavu ya gulugufe ya double flange triple eccentric ili ndi makhalidwe abwino kwambiri owongolera kuyenda kwa madzi. Kapangidwe ka disc ndi mpando kosunthika kamachepetsa kukana kuyenda kwa madzi, kumachepetsa kutsika kwa kuthamanga kwa madzi komanso kusunga mphamvu. Izi zimapangitsa valavu iyi kukhala chisankho chabwino kwambiri chowongolera kuyenda kwa madzi m'mapaipi ndi machitidwe opangira. Mphamvu yolondola ya valavuyi imapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito pofunikira kuwongolera kuyenda kwa madzi molondola.

Ponena za kusankha zinthu, ma valve a gulugufe awiri okhala ndi flange iwiri amatha kupangidwa ndi zinthu zosiyanasiyana, kuphatikizapo chitsulo cha kaboni, chitsulo chosapanga dzimbiri ndi ma alloys osowa. Izi zimathandiza kuti zigwirizane ndi mitundu yosiyanasiyana ya madzi ndi momwe zimagwirira ntchito. Kutha kusintha zida za ma valve kumatsimikizira kuti zikukwaniritsa zofunikira za mafakitale ndi ntchito zosiyanasiyana.

Kuphatikiza apo, valavu ya gulugufe ya double flange triple offset yapangidwa kuti igwire ntchito modalirika komanso kwa nthawi yayitali. Kapangidwe kolimba komanso zipangizo zapamwamba zomwe zimagwiritsidwa ntchito popanga zinthu zimapangitsa kuti valavuyo ikhale yolimba komanso yogwira ntchito bwino nthawi yonse yomwe ikugwira ntchito. Kudalirika kumeneku ndikofunikira kwambiri kuti ntchito zamafakitale zizikhala bwino komanso zogwira mtima.

Mwachidule, Double Flange Triple Offset Butterfly Valve imapereka zabwino zambiri zomwe zimapangitsa kuti ikhale chuma chamtengo wapatali pantchito zamafakitale. Kapangidwe kake ka triple-eccentric, kasinthidwe ka dual-flange, kusinthasintha, kuthekera kowongolera kayendedwe ka madzi, kusankha zinthu ndi kudalirika kumapangitsa kuti ikhale chisankho choyamba kwa mafakitale omwe akufuna njira zowongolera kayendedwe ka madzi moyenera komanso modalirika. Ndi kupita patsogolo kosalekeza kwa ukadaulo, double flange triple eccentric butterfly valve ikuyembekezeka kukhala ndi gawo lofunikira kwambiri pakuwonetsetsa kuti machitidwe amafakitale akugwira ntchito bwino.