Mwachidule, valavu ya butterfly ndi kotala yozungulira valavu yoyenda. Monga ma valve ena aliwonse, amagwiritsidwa ntchito poyambira, kuyimitsa, ndikuwongolera kuyenda. Valavu yamtunduwu yakhalapo kuyambira kumayambiriro kwa zaka za m'ma 1930 ndipo imakhala ndi ntchito zambiri m'makampani opanga mafakitale. Mavavu agulugufe amapangidwa kuchokera kuzinthu zosiyanasiyana ndipo dzina lawo limachokera ku magwiridwe antchito a ma disc ake, ngakhale dzina lolondola kwambiri likanakhala Disc Valve.
Mfundo yogwira ntchito imaphatikizapo kusinthasintha lever yawo 0- 90 ° - izi zimapereka mwayi wotsegula kapena kutseka kwa valve. Chinthu chinanso chofunikira ndi chakuti ma valve awa amatha kukhala ndi makina a gearbox. Pokonzekera, gudumu lamanja lochokera ku magiya limagwirizanitsidwa ndi tsinde, zomwe zimapangitsa kuti valavu ikhale yosavuta kugwira ntchito koma pamtunda wotsika komanso ma valve akuluakulu. Poganizira izi, tiyeni tiwone njira zopangira mitundu yosiyanasiyana ya ma valve agulugufe.
Resilient Seated Butterfly Valve (RSBFV)
Pali mitundu iwiri yoyambira:
Cartridge Seated imagwiritsa ntchito mpando wa rabara pamwamba pa mphete yolimba yosunga zobwezeretsera, nthawi zambiri phenolic, kupangitsa mpando kukhala wolimba kwambiri. Kuyika kumafuna kungoyika thupi la valve pakati pa ma flanges, kuliyika pakati, ndikumangitsa ma bolts ku torque yodziwika. Mtundu wa Wafer utha kubwera kapena osabwera ndi mabowo apakati pomwe thupi la Lug labowola ndikubowola mabowo omwe amafanana ndi mabowo a flange ndipo amakhazikika mosavuta.
Boot Seated imagwiritsa ntchito mpando wopindika womwe umapindika mkati mwa thupi ndipo umayikidwa pambali pake ndi poyambira, nthawi zambiri masikweya a dovetail pankhope ya flange. Valavu iyi siyingakhazikitsidwe pamalo otsekedwa kwathunthu koma iyenera kusweka motseguka pafupifupi 10% mukukhala mkati mwa envelopu ya thupi ndikuyendetsa mosamala pakati pa ma flanges, kusamala kuti musagwire mlomo wa mpando pamphepete mwa ID, "kugudubuza" "mpando kudera la disc. Apanso, valavu, kaya yopyapyala kapena thumba, iyenera kukhala pakati.
* PALIBE VALVE IKUFUNA FLANGE GASKETS
* KUGWIRITSA NTCHITO KWA FLANGE GASKETS KUSANGALATSA CHITANIZIRO CHA ZINTHU ZINA.
* MPANDO NDI GASKET!
Kuchita Kwapamwamba, Kuchepetsa Pawiri, ndi Valve ya Gulugufe Katatu
Mapangidwe a valve awa amaphatikiza kuchotsera monga momwe akusonyezera dzina lawo, opangidwa ndi mapangidwe a geometry a malo okhalamo. Njira yopangira izi imaphatikizapo kuyika mpando kukhala mawonekedwe a offset. Izi zimathandizira kugundana mopanda friction nthawi yonse yozungulira. Kulumikizana kumaphatikizidwa kumapeto kotseka ndikukwezedwa pa 90 ° kukhala ngati kuyimitsidwa kwamakina.
Nayi njira yokhazikitsira:
Tsukani mapaipi onse oipitsa.
Dziwani komwe madzi akulowera, torque yomwe imatuluka mu diski imatha kupanga torque yayikulu kuposa yolowera mbali ya shaft ya disc.
Ikani disk pamalo otsekedwa pakuyika kuti mupewe kuwonongeka kwa m'mphepete mwa kusindikiza kwa disc.
Ngati n'kotheka, nthawi zonse valavu iyenera kuyikidwa ndi tsinde mopingasa kupeŵa zinyalala za mapaipi zomwe zingasonkhanitsidwe pansi ndi kuyika kutentha kwakukulu.
Iyenera kukhazikitsidwa nthawi zonse pakati pa flanges monga tafotokozera pamwambapa. Izi zimathandiza kupewa kuwonongeka pa chimbale ndi kuthetsa kusokoneza payipi ndi flange.
Gwiritsani ntchito zowonjezera pakati pa valavu ya butterfly ndi valve yoyang'anira wafer.
Yesani diskiyo poyisuntha kuchokera pamalo otsekedwa kuti mutsegule ndi kubwerera kumbuyo kuti muwonetsetse kuti ikuyenda bwino.
Limbitsani ma bolts a flange (kulimbitsa motsatizana) kuti muteteze valavu potsatira ma torque omwe opanga amalimbikitsa.
MAVAVU AWA AMAFUNA GASKET ZA FLANGE M'Mbali zonse ziwiri za nkhope ya valve, ZOSANKHIDWA PA UTUMIKI WOFUNIKA.
* Tsatirani chitetezo chonse komanso machitidwe abwino amakampani.
Nthawi yotumiza: Oct-26-2019