Butterfly mavharuvhu ikota-turn flow control midziyo inoshandisa simbi disc inotenderera ichitenderedza tsinde axis. Iwo anokurumidza kuita kuyerera kuyerera mavharuvhu anobvumira 90 madhigirii ekutenderera kufamba kubva kuvhurika zvakazara kusvika kwakavharika nzvimbo.
Kana iyo diski iine perpendicular kune centreline yepombi, valve iri munzvimbo yakavharwa.Apo diski inofananidzwa nechepakati pepombi, valve ichave yakazaruka zvakakwana (kubvumira huwandu hwemvura inoyerera) . control mechanism (disk) inenge yakaenzana nehupamhi hwemukati wepombi iri pedyo.
Aya mavharuvhu anouya muhukuru hwakasiyana uye magadzirirwo anotarisisa mashandiro avo mumaindasitiri maitiro ekushandisa; utsanana vharafu kushandiswa; mabasa emoto; kudziyisa, kufefetedza, uye air conditioning (HVAC) masisitimu; uye slurries.Broadly kutaura, butterfly mavharuvhu anokosha pakugadzirisa kuyerera uye kuyerera kwega.
Kufamba kwedhisiki kunotanga, kunonotsa kana kumisa kuyerera kwemvura.Zvishandiso zvinoda kunyatsojeka kwepamusoro zvinoenderana nemavharuvhu e butterfly anotarisisa mamiriro epombi, kuvhura kana kuvhara vharavha sezvinodiwa kuchengetedza kuyerera kwakafanana.Mavharuvhu ebutterfly anoshandiswa pakuyerera imwe yeanotevera maitiro ekuyerera:
" Pedyo nemutsara - chiyero chekuyerera chinoenderana neangular motion ye disc. Somuenzaniso, apo diski iri 40% yakazaruka, kuyerera kuri 40% yepamusoro.Ichi chimiro chekuyerera chinowanzoonekwa mukushanda kwepamusoro butterfly valves.
" Kukurumidza kuzarura - Ichi chimiro chekuyerera chinoratidzwa kana uchishandisa resilient seated butterfly valves. The fluid flow flow rate yakakwirira apo disc inofamba kubva panzvimbo yakavharwa. Sezvo valve inosvika panzvimbo yakazaruka zvakakwana, kuyerera kunodonha zvishoma nezvishoma nekuchinja kuduku.
" Flow Isolation - Butterfly valves inogona kupa pa / off fluid service. Kuyerera kwega kunodiwa chero nguva imwe chikamu chepiping system inoda kugadziriswa.
Butterfly mavharuvhu akakodzera kushandiswa kwakasiyana nekuda kwekureruka kwekugadzira uye kukurumidza kushanda.Soft-seated butterfly mavharuvhu akanakira kuderera kwekushisa, kuderera kwekumanikidza kushandiswa, nepo simbi-yakagara butterfly mavharuvhu ane yakanaka yekuisa chisimbiso pakubata yakaoma mvura mamiriro.Iyi nzira inoshanda. pa tembiricha yepamusoro uye kumanikidzwa uye inofambisa viscous kana corrosive fluid.Zvakanakira zveshavishavi mavharuvhu zvinosanganisira:
"Mavharuvhu asingaremi uye ane compactjjMavharuvhu eButterfly anoshandisa madhisiki esimbi akatetepa senzira yekudzora kuyerera. Madhisiki madiki uye anotora nzvimbo shoma, asi akasimba zvakakwana kuti agadzirise mafambiro emvura. Mavharuvhu aya ane muviri wakabatana unoaita akakodzera kushandiswa pakupomba. masisitimu munzvimbo dzakamanikana.Mapaipi makuru-dhayamita anoda mavharuvhu makuru anoshandisa zvinhu zvakawanda zvekugadzira, kuwedzera mari.A butterfly valve ichange isingadhure pane vharafu yebhora yehukuru hwakafanana nekuti inodya zvinhu zvishoma kugadzira.
"Kurumidza uye Kubudirira Kuisa Chisimbiso - Butterfly mavharuvhu anopa chisimbiso nekukurumidza pa actuation, zvichiita kuti ive yakakodzera kune yakanyanya kuyerera yekuyerera maapplication.Kuisa chisimbiso chevhavhavhavhavhavhavhavha rinoenderana nerudzi rwe disc offset uye chimiro chechigaro.A zero offset butterfly valve. ichapa chisimbiso chakakwana chekushandiswa kwepasi - kusvika ku 250 pounds per square inch (psi) .Ivhavha yekaviri inogadzirisa inopa chisimbiso chakanakisisa chemaitiro kusvika ku 1,440 psi.Mavharuvhu matatu ekugadzirisa anopa chisimbiso chekushandiswa kwekuyerera pamusoro pe1,440 psi.
" Low Pressure Drop uye High Pressure Recovery - Butterfly valves ine low pressure drop pasi pasinei nokuti disc inogara iripo mumvura. Kudonha kwepasi kunokosha pakugadzirisa kupomba uye simba rekuda kwehurongwa. Butterfly valves yakagadzirirwa kubvumira. mvura yekudzosa simba nekukurumidza mushure mekunge yabuda muvharuvhu.
"Mavharuvhu eButterfly ane zvikamu zvishoma zvemukati. Haana homwe anogona kuteya zvinwiwa kana marara, saka anoda kupindira kushoma kwekugadzirisa. Kuiswa kwavo kwakangoreruka sezvavanoda kusungirirwa pakati pepombi flanges yakatarisana. Hapana yakaoma yekuisa maitiro. senge welding inodiwa.
"Kushanda Kuri Nyore - Nekuda kwehukuru hwawo uye huremu huremu, mavharuvhu eshavishavi anoda torque yakaderera kuti ashande. Madhisiki esimbi matete anoshandisa simba diki kuti akunde kurwiswa kwemvura. Mavharuvhu eButterfly ari nyore kugadzira nekuti madhisiki madiki anogona ipai torque yakakwana yekushanda kwavo.Izvi zvinoshandura kuva mari shoma yekushanda - zviduku zvinoshandisa simba zvishoma uye zvinodhura zvishoma kuwedzera kune valve.
" Butterfly valves inokonzerwa ne cavitation uye yakavharidzirwa kuyerera - munzvimbo yakazaruka, valve haina kupa chivharo chakazara. Kuvapo kwe diski mumugwagwa wemvura inoyerera kunowedzera kuumbwa kwemarara kumativi evhavha, kuwedzera kukwanisa kwe cavitation. Mavharuvhu ebhora ndiyo imwe nzira yekushandisa fluid inoda madoko akazara.
"Rapid corrosion in viscous fluid services - zvinwiwa zvinoputika mavharuvhu e butterfly sezvazvinoyerera nemazviri. Nokufamba kwenguva, madhisiki anoderera uye haachakwanise kupa chisimbiso. Corrosion rates ichava yakakwirira kana uchibata viscous fluid services. Gedhi nemavharuvhu ebhora ane ngura iri nani kuramba kupfuura butterfly mavharuvhu.
" Haikodzeri kukwira kwepamusoro-soro - iyo valve inofanira kungoshandiswa pakugadzirisa mumagetsi mashoma, zvishoma kusvika ku30 degrees kusvika ku80 degrees yekuvhura. Mavharuvhu eGlobe ane simba rekufambisa zviri nani kupfuura mavharuvhu e butterfly.
Iyo vharafu inoputika munzvimbo yakazaruka yakazara inodzivirira kucheneswa kwehurongwa uye inodzivirira nguruve yemutsetse ine butterfly valve.
The kugadzwa chinzvimbo shavishavi vharafu kazhinji pakati flanges.Butterfly mavharuvhu anofanira kuiswa kanenge mana kusvika matanhatu pombi diameters kubva discharge nozzles, gokora, kana mapazi kuderedza migumisiro nyonganyonga.
Usati waiswa, chenesa mapaipi uye tarisa flanges kuitira kutsetseka / flatness.Iva nechokwadi chokuti mapaipi akaenzana.Paunenge uchiisa valve, chengetedza diski munzvimbo yakazaruka zvishoma.Flanges inogona kuwedzerwa kuti irege kukuvadza panzvimbo yechigaro.Shandisa pilot. maburi kana zvipfuramabwe zvakatenderedza muviri wevharuvhu paunenge uchisimudza kana kufambisa vharafu.Rega kusimudza vharafu pachibatiso kana mushandisi wayo.
Gadzirisa vharuvhu nebhaudhi yekupinza yepombi iri pedyo.Simbisa mabhaudhi, wobva washandisa chipanera che torque kuti usimbise mabhaudhi zvishoma nezvishoma uye zvakaenzana kuti ufungidzire kujeka pakati pawo neflange.Dzondesa vharuvhu kunzvimbo yakazaruka zvakakwana uye shandisa a torque wrench yekusimbisa mabhaudhi kuti utarise kana kushushikana pamabhaudhi.
Kugadziriswa kwemavharuvhu kunosanganisira mafuta emagetsi emagetsi, kuongorora uye kugadziriswa kwemagetsi.Mavharuvhu anoda periodic lubrication anosanganisira mafittings emafuta.Inokwana lithium-based grease inofanira kuiswa panguva dzinokurudzirwa kuderedza ngura nekuora.
Zvakakoshawo kugara uchiongorora actuator kuti uone chero zviratidzo zvekupfeka kana kusununguka kwemagetsi, pneumatic kana hydraulic connections zvinogona kukanganisa kushanda kwevhavha.
Mukuwedzera, mushandisi anofanira kuchenesa zvikamu zvose zvevhavhavhavhavhavha nesilicone-based lubricant.Chigaro chinofanira kuongororwa kune chero zviratidzo zvekupfeka uye kuchinjwa kana zvichidiwa.Butterfly valve discs inoshandiswa mumashandisi akaoma akadai sekushanda kwemhepo yakamanikidzwa inoda mafuta. Butterfly mavharuvhu anotenderera zvisingaite anofanirwa kushandiswa kamwechete pamwedzi.
Kusarudzwa kwevharuvhu kungaita sekunge kusarudzwa uye kuita basa rekubatanidza, asi kune akati wandei maitiro ehunyanzvi ekufunga.Yekutanga inosanganisira kunzwisisa rudzi rwekudzorwa kwemvura inodiwa uye rudzi rwesevhisi fluid.Corrosive fluid services inoda mavharuvhu akagadzirwa nesimbi isina tsvina, nichrome, kana zvimwe zvinhu zvinodzivirira kuora.
Vashandisi vanofanira kufunga nezvesimba, kudzvanywa uye tembiricha shanduko yepombi uye mwero weotomatiki unodiwa.Kunyange zvazvo mavharuvhu e butterfly achishanda achinyatso kudzora kuyerera, anodhura kupfuura mamwe anoshandiswa nemaoko.Mavharuvhu eButterfly haadzoreki uye haapi. chiteshi chakazara.
Kana mushandisi asina chokwadi nezve kuenderana kwemakemikari kwemaitiro kana actuation sarudzo, inokwanisa kambani yevharuvhu inogona kubatsira mukuona kusarudzwa kwakaringana.
Gilbert Welsford Jr. ndiye muvambi weValveMan uye chizvarwa chechitatu Valve entrepreneur.Kuti uwane rumwe ruzivo, shanya Valveman.com.
Nguva yekutumira: Mar-02-2022
