Kuna tinxaka to tala na tinxaka to rharhangana tati- valve, ngopfu-ngopfu ku katsa tivalvu ta gede, tivalvu ta globe, tivalvu ta throttle, tivalvu ta phaphatani, tivalvu ta pulagi, tivalvu ta bolo, tivalvu ta gezi, tivalvu ta diaphragm, tivalvu to kambela, tivalvu ta vuhlayiseki, tivalvu to hunguta ntshikelelo, swirhalanganyi swa mpfula na tivalvu to pfala hi xihatla, na swin’wana , leswi hi ntolovelo swi tirhisiwaka valve ya gede, valve ya globe, valve ya throttle, valve ya pulagi, valve ya butterfly, valve ya bolo, valve yo kambela,, valve ya diaphragm.
1 Valve ya phaphatani
Butterfly valve i ntirho wo pfula naku pfala wa butterfly plate wunga hetisisiwa hiku rhendzeleka hi 90° ku rhendzela fixed axis eka miri wa valve. Valve ya phaphatani yitsongo hi vukulu, yi vevuka hi ntiko naswona yi olova hi xivumbeko, naswona yina swiphemu swintsongo ntsena. Naswona yi lava ntsena ku rhendzeleka hi 90°; yi nga pfuriwa ni ku pfala hi ku hatlisa, naswona ntirho wa yona wa olova. Loko valve ya phaphatani yiri eka xiyimo lexi pfulekeke hiku hetiseka, ku enta ka butterfly plate hi kona ntsena ku lwisanaka loko medium yi khuluka hi miri wa valve, hikokwalaho kuhunguteka ka ntshikelelo loku endliwaka hi valve i kutsongo swinene, hikokwalaho yina swihlawulekisi swo antswa swa vulawuri bya ku khuluka. Valve ya phaphatani yi avanyisiwile hi elastic soft seal na metal hard seal. Valve yo pfalela ya elastic, ring yo pfalela yinga nghenisiwa eka miri wa valve kutani yi khomiwa eka matlhelo ya disc, na matirhelo ya kahle yo pfalela, leswinga tirhisiwaka eka throttling, tiphayiphi ta vacuum tale xikarhi xikan’we na ti corrosive media. Ti valve letingana ti metal seals hi xitalo tina vutomi byo leha kutlula letingana ti elastic seals, kambe swa tika ku fikelela ku pfariwa loku heleleke. Titala kutirhisiwa eka minkarhi leyingana ku cinca lokukulu eka ku khuluka naku hunguteka ka ntshikelelo naswona swilava matirhelo ya kahle ya throttling. Ti seals ta nsimbi tinga pfumelelana na mahiselo yale henhla ya ntirho, kasi ti elastic seals tina xihoxo xaku pimisiwa hi mahiselo.
2Valve ya gede
Gate valve yivula valve leyi miri wa yona wo pfula naku pfala (valve plate) wu fambiwaka hi nsinya wa valve naswona wu famba kuya e henhla nale hansi kuya eka ndzhawu yo pfalela ya xitulu xa valve, leswinga hlanganisaka kumbe ku tsema ku hundza ka mati. Loko ku pimanyisiwa na globe valve, gate valve yina matirhelo yo antswa yo pfalela, ku lwisana na mati nyana, matshalatshala yatsongo yo pfula naku pfala, naswona yina matirhelo yokarhi yo lulamisa. I yin’wana ya ti block valve leti tirhisiwaka ngopfu. Lexi nga tsakisiki hileswaku vukulu bya yona i byikulu, xivumbeko xa yona xi rharhanganile ku tlula xa valve ya globe, vuandlalo byo pfalela bya olova ku byi ambala naswona a swi olovi ku byi hlayisa. Hi ntolovelo, a yi faneleki ku throttling. Kuya hi ndzhawu ya thread eka gate valve stem, yi avanyisiwile hi tinxaka timbirhi: open rod type na dark rod type. Kuya hi swihlawulekisi swa xivumbeko xa gede, yinga avanyisiwa hi tinxaka timbirhi: muxaka wa wedge na muxaka wa parallel.
3 Ku kambela valve
Check valve i valve leyi nga sivela hi yoxe ku tlhelela endzhaku ka mati. Valve flap ya check valve yi pfuriwa ehansi ka xiendlo xa ntshikelelo wa fluid, naswona fluid yi khuluka kusuka eka tlhelo ro nghena kuya eka tlhelo ro huma. Loko ntshikelelo eka tlhelo ro nghena wuri ehansi kutlula wa tlhelo ra outlet, valve flap yita pfala hiku tisungulela ehansi ka xiendlo xa ku hambana ka ntshikelelo wa fluid, gravity ya yona na swin’wana ku sivela fluid kuva yi khulukela endzhaku. Kuya hi xivumbeko, yinga avanyisiwa hi lift check valve na swing check valve. Muxaka wa lift wuna matirhelo yo antswa yo pfalela xikan’we naku tiya lokukulu ka mati kutlula muxaka wa swing. Eka ndzhawu yo koka ya phayiphi yo koka ya pompo, valve yale hansi yifanele ku hlawuriwa. Ntirho wa yona iku tata phayiphi yo nghena ya pompo hi mati loko yinga se sungula pompo; hlayisa phayiphi yo nghena na miri wa pompo swi tele hi mati endzhaku ka loko pompo yi yimisiwile, leswaku u ta tilulamisela ku sungula nakambe. Valve yale hansi hi xitalo yi vekiwa ntsena eka phayiphi leyi yimisiweke ya ndzhawu yo nghena ya pompo, naswona medium yi khuluka kusuka ehansi kuya e henhla.
4 Valava ya globe
Valve ya globe i valve leyi pfalekeke kuya ehansi, naswona xirho xo pfula naku pfala (valve) xifambisiwa hi nsinya wa valve kuva xi famba ehenhla nale hansi kuya hi axis ya xitulu xa valve (sealing surface). Loko yi pimanisiwa na gate valve, yina matirhelo ya kahle yo lulamisa, matirhelo yoka yanga kahle yo pfalela, xivumbeko xo olova, vumaki na nhlayiso lowu olovaka, ku tiya lokukulu ka mati xikan’we na nxavo wale hansi.
5 Valava ya bolo
Xiphemu xo pfula na ku pfala xa valve ya bolo i xirhendzevutani lexi nga na xirhendzevutani xo hundza, naswona xirhendzevutana xi rhendzeleka na nsinya wa valve ku lemuka ku pfuleka na ku pfala ka valve. Valve ya bolo yina xivumbeko xo olova, ku cinca hiku hatlisa, ntirho lowu olovaka, vukulu lebyintsongo, ntiko wo vevuka, swiphemu swintsongo, ku lwisana na mati lamantsongo, matirhelo ya kahle yo pfalela xikan’we naku hlayisiwa loku olovaka.
6 Valava ya throttle
Xivumbeko xa valve ya throttle kahle kahle xifana na xa valve ya globe handle ka valve disc. Valve disc i xiphemu xa throttling, naswona swivumbeko swohambana hambana swina swihlawulekisi swohambana hambana. Diameter ya xitulu xa valve ayi fanelanga kuva yikulu ngopfu, hikuva ku tlakuka ka ku pfuleka i kutsongo. Mpimo wa ku khuluka ka le xikarhi wu tlakuka, kutani wu Hatlisisa ku khuluka ka valve disc. Valve ya throttle yina swipimelo leswintsongo, ntiko wo vevuka xikan’we na matirhelo ya kahle yo lulamisa, kambe ku pakanisa ka ku lulamisa akuri e henhla.
7 Valava ya pulagi
Valve ya plug yitirhisa miri wa plug lowungana through hole tani hi xiphemu xo pfula naku pfala, naswona miri wa plug wu rhendzeleka na nsinya wa valve kuva wu lemuka ku pfuleka naku pfala ka valve. Valve ya plug yina swipfuno swa xivumbeko xo olova, ku cinca hiku hatlisa, matirhelo yo olova, ku tiya ka mati lamantsongo, swiphemu swintsongo na ntiko wo vevuka. Kuna ti valve ta plug leti kongomeke, ta tindlela tinharhu na mune. Valve ya straight-through plug yitirhisiwa ku tsema medium, naswona ti three-way na four-way plug valves titirhisiwa ku cinca tlhelo ra medium kutani ku avanyisa medium.
8 Valava ya diaphragm
Xiphemu xo pfula na ku pfala xa valve ya diaphragm i diaphragm ya rhaba, leyi sandwiched exikarhi ka miri wa valve na xifunengeto xa valve. Xiphemu xale xikarhi lexi humelaka ehandle xa diaphragm xi vekiwile eka nsinya wa valve, naswona miri wa valve wu rhendzeriwe hi rhaba. Leswi medium yinga ngheniki endzeni ka xigwitsirisi xa valve, nsinya wa valve awu lavi bokisi ro tata. Valve ya diaphragm yina xivumbeko xo olova, matirhelo ya kahle yo pfalela, ku hlayisiwa ko olova xikan’we naku tiya ka mati nyana. Ti valve ta diaphragm ti avanyisiwile hi muxaka wa weir, muxaka wa straight-through, muxaka wa right-angle na muxaka wa direct-flow.
Nkarhi wa poso: May-12-2022
