Butterfly Valve Nhanganyaya

Nhanganyaya:

A butterfly valveanobva kumhuri yemavharuvhu anonziquarter-turn valves. Mukushanda, vharuvhu yakazaruka kana yakavharwa kana dhisiki ichitenderedzwa kota. “Butterfly” idhisiki resimbi rakaiswa patsvimbo. Kana vharuvhu yakavharwa, disc inoshandurwa kuitira kuti ivhare zvachose kubva panzira. Kana vharuvhu yakazaruka zvizere, dhisiki inotenderedzwa kota kutendeuka kuitira kuti inobvumira nzira inenge isina kuganhurirwa yemvura. Ivhavha inogonawo kuvhurwa zvishoma nezvishoma kuti iite throttle flow.

Kune marudzi akasiyana eshavishavi mavharuvhu, rimwe nerimwe rakachinjirwa kumanikidziro akasiyana uye kushandiswa kwakasiyana. Zero-offset butterfly valve, iyo inoshandisa kuchinjika kwerabha, ine yakaderera chiyero chekumanikidza. Iyo yepamusoro-inoshanda kaviri yekubvisa butterfly valve, inoshandiswa mune zvishoma-inodzvinyirira masisitimu, inobviswa kubva pakati pemutsara wedhisiki chigaro uye chisimbiso chemuviri (offset one), uye mutsara wepakati webore (offset maviri). Izvi zvinogadzira cam chiitiko panguva yekushanda kusimudza chigaro kunze kwechisimbiso zvichikonzera kukweshana kushoma pane inogadzirwa mu zero offset dhizaini uye inoderedza maitiro ayo ekupfeka. Ivharuvhu inonyatsokodzera masisitimu e-high-pressure ndiyo katatu offset butterfly valve. Muvharuvhu iyi disc seat yekubata axis inomiswa, iyo inoita kuti ibvise kutsvedza kubata pakati pe disc nechigaro. Kana iri katatu offset mavharuvhu chigaro chinogadzirwa nesimbi kuitira kuti inogona kugadzirwa zvakadai sekuwana bubble tight shut-off paunosangana ne disc.

Types

1. Concentric butterfly mavharuvhu- rudzi urwu rwevharuvhu rine chigaro cherubha chinogadzirisa chine disc disc.
2. Kaviri-eccentric butterfly mavharuvhu(high-performance butterfly valves kana maviri-offset butterfly valves) - mhando dzakasiyana dzezvinhu zvinoshandiswa pazvigaro uye disc.
3. Triply-eccentric butterfly mavharuvhu(triple-offset butterfly valves) - zvigaro zvingava laminated kana yakasimba simbi chigaro chekugadzira.

Wafer-style butterfly mavharuvhu

Thewafer style butterfly valveyakagadzirirwa kuchengetedza chisimbiso chinopesana ne-bi-directional pressure differential kudzivirira chero backflow mumasisitimu akagadzirirwa unidirectional kuyerera. Inoita izvi nechisimbiso chakanyatsokodzera; kureva, gasket, o-ring, precision machined, uye chiso chevharuvhu rakati sandarara kumativi ekumusoro nekudzika kwevharuvhu.

Lug-style butterfly valve

Lug-style mavharuvhuvane tambo dzakapinza pamativi ese emuviri wevharuvhu. Izvi zvinovatendera kuti vaiswe muhurongwa vachishandisa seti mbiri dzemabhaudhi uye pasina nzungu. Ivhavha inoiswa pakati pemaflange maviri uchishandisa seti yakasiyana yemabhoti kune imwe neimwe flange. Iyi setup inobvumira chero divi repombi system kuti ribviswe pasina kukanganisa rimwe divi.

A lug-style butterfly valve inoshandiswa mukufa kwekupedzisira sevhisi kazhinji ine yakaderedzwa chiyero chekumanikidza. Semuyenzaniso, rovaruvhu yeshavishavi rakaiswa pakati pemaflange maviri rine 1,000 kPa (150 psi) pressure rating. Ivhavha imwechete yakasimudzwa neflange imwe, mubasa rekupedzisira, ine 520 kPa (75 psi) chiyero. Mavharuvhu ane lugged anoshingirira zvakanyanya kumakemikari uye zvinonyungudutsa uye anogona kubata tembiricha inosvika 200 °C, izvo zvinoita kuti ive mhinduro inogoneka.

Shandisa muindasitiri

Mumaindasitiri emishonga, makemikari, uye ezvekudya, shavishavi yevharuvhu inoshandiswa kukanganisa kuyerera kwechigadzirwa (chakasimba, mvura, gasi) mukati mekuita. Mavharuvhu anoshandiswa mumaindasitiri aya anowanzo gadzirwa zvinoenderana neCGMP nhungamiro (ikozvino kuita kwakanaka kwekugadzira). Mavharuvhu eButterfly aiwanzotsiva mavharuvhu ebhora mumaindasitiri mazhinji, kunyanya petroleum, nekuda kwemutengo wakaderera uye nyore kuisa, asi mapaipi ane mavharuvhu e butterfly haakwanise 'kuvharwa' pakuchenesa.

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