Gate Valve: Gate Valve ni valve erikukoresa omuryango (gate plate) kugyendera omu nkora y’okutegyeka aha rubaju rw’omuhanda. Nikikoresibwa munonga omu mipiira y‘okwetaanisa aha nkora y‘ahagati, nikwo kugira ngu, ekikingire kimwe nari ekikingire kimwe. Okutwarira hamwe, ebipimo by’omuryango tibihikire omu kuhabura okusheesheka. Nibibaasa kukoresibwa omu bwire bw‘obutagatsi bukye n‘obutagatsi bw‘ahaiguru n‘okukoresa pressure, kurugiirira aha kintu ky‘okukoresa valve.
Kwonka, ebipimo by’omuryango okutwarira hamwe tibirikukoresibwa omu mipiira erikutwara omucuucu nari ebindi ebirikushushana.
Ebirungi:
Okuzibira amaizi makye.
Nikyetengyesa torque nkye y’okukinga n’okukinga.
Nikibaasa kukoresibwa omu nkora z‘okusheesheka omu nshonda ibiri, ekirikureetera omugati kusheesheka omu nshonda zombi.
Ku kirikwigurwa omu bwijwire, omwanya gw‘okukinga nigubaasa kusheenyagurika kakye kuruga omu nkora y‘okukora waagyeragyeranisa na globe valves.
Omubumbi gworobi n’omuringo murungi gw’okukora.
Oburaingwa bw’omutindo gw’ebintu.
Ebibi:
Ebipimo bihango omu bwijwire hamwe n'omwanya gw'okutaho nigwetengyesa.
Okuteerana kw‘ahaiguru n‘okujwara ahagati y‘ebicweka by‘okukingaho omu bwire bw‘okukinga n‘okukinga, namunonga aha bwire bw‘obwire bw‘obwire bw‘obwire.
Valvu z’omuryango omu muringo gw’omutaano ziine emyanya ebiri y’okukinga, ekirikubaasa kwongyera aha buremeezi omu kukora, okushenda, n’okuboneza.
Obwire buraingwa bw’okukinga n’okukinga.
Valvu y'ekihuguhugu: Valve y’ekinyonyi n’ekikwato ekirikukoresa ekintu ekirikukinga ekiine omubiri nk’ogwa disiki kuhindura diguri nka 90 kwigura, kukinga, n’okutebeekanisa okutambura kw’amaizi.
Ebirungi:
Omubumbi gworobi, obuhango bukye, oburemeezi bukye, n’okukoresa ebintu bikye, ekirikugihindura nungi aha valvu z’oburaingwa bw’amaani.
Okwigura n‘okukinga juba n‘okuzibira okusheesheka okukye.
Nikibaasa kukwata aha bihandiiko ebiine obucweka obugumire obuhanikire kandi nikibaasa kukoresibwa aha bihandiiko by‘obutunguru n‘eby‘obujuma kurugiirira aha maani g‘aha mutwe gw‘okukinga.
Nikirungi omu kwigura, okukinga, n’okutebeekanisa omu miringo ebiri omu mipiira y’okutaho omuyaga n’okuihaho enfuuzi. Nikikozesibwa munonga omu by’ebyoma, eby’amashanyarazi ebikye, eby’amaani, n’eby’amajuta ahabw’emipiira ya gaasi n’emihanda y’amaizi.
Ebibi:
Omubaro gw’okutegyeka okugyendera okukye; valve ku erikuba eigukire na 30%, omubaro gw’okusheeshasheesha nigwija kurenga 95%.
Tikihikire aha nkora z‘emipiira y‘obwire bw‘obwire bw‘obwire bw‘obwire bw‘obwire bw‘obwire ahabw‘oburemeezi omu nkora n‘ebintu by‘okukingaho. Okutwarira hamwe, neekora aha bwire bw’obutagatsi oburi ahansi ya 300°C na PN40 nari ahansi.
Okukora kubi kw‘okukinga kugyeragyeranisa n‘ebikwato by‘omupiira n‘ebikwato by‘ensi, n‘ahabw‘ekyo ti birungi aha mirimo erimu ebyetaago by‘okukinga bingi.
Ball Valve: Valve y’omupiira neeruga omu plug valve, kandi ekintu kyayo ekirikugikingaho n’ekibumbe ekirikwetoorora diguri 90 okwehinguririza axis y’ekipande ky’omupiira .valvestem kuhikiiriza okukinga n’okukinga. Valve y’omupiira neekoresibwa munonga omu mipiira y’okukingaho, okugaba, n’okuhindura ahu amaizi garikugyendera. Ball valves eziine ebifunjo ebiri omu muringo gwa V nazo ziine obushoboorozi burungi bw’okutegyeka okusheesheka.
Ebirungi:
Okuzibira okusheesheka okukye (omu bikorwa zero).
Okukozesa okwesigwa omu bihandiiko ebirikusheeshasheesha n‘amaizi agarikufuka ahansi nk‘oku gatarikukwatira omu bwire bw‘okukora (hatariho kujwara amajuta).
Nikihikiiriza okukinga okuhikire omu bwire bw‘okugyemeserezibwa n‘obutagatsi bwingi.
Okwigura n‘okukinga juba, n‘ebizimbe ebimwe biine obwire bukye bw‘okukinga/okukinga nk‘obutikitiki 0.05 kuhika 0.1, obuhikire aha nkora z‘okwekorera omu ntebe z‘okugyezesa hatariho kukwatwaho omu bwire bw‘okukora.
Okutebeekanisa kw’okwekorera aha myanya y’ensharo n’ekintu ky’okukinga omupiira.
Okukinga okurikwesigwa aha mbaju zombi z‘omuringo gw‘okukora.
Tihariho kusheenya kw‘ebicweka by‘okukingaho kuruga omu bihandiiko by‘omuvuyo gw‘ahaiguru byaba bikingirwe nari bikingire omu bwijwire.
Omubumbi orikukora gye kandi otarikuremeera munonga, ekirikugihindura omubumbi gwa valve ogurikukirayo kuhikaana n’enkora z’okujanjaaza amakuru eziri omu bwire bw’obutiti bukye.
Omubiri gwa valvu ogurikushushana, namunonga omu nkora z‘omubiri gwa valvu ezirikweshushaniriza, nigubaasa kugumira oburemeezi kuruga omu mipiira.
Ekintu ky‘okukinga nikibaasa kugumira entaaniso z‘amaani omu bwire bw‘okukinga. Ebikwato by’omupiira ebikozirwe omu bwijwire nibibaasa kuziikwa ahansi y’itaka, kureeba ngu ebicweka by’omunda tibyasheenyagurika, kandi nibibaasa kumara emyaka 30, ekirikubihindura birungi omu mipiira y’amajuta na gaasi.
Ebibi:
Ekintu kikuru eky‘okukingaho empeta y‘omupiira gw‘omupiira ni polytetrafluoroethylene (PTFE), ekitarikukora haihi n‘emibazi yoona kandi eine emitwarize ehikire nk‘okuteerana okukye, okukora okuhamire, okuzibira okukura, okuhikiirira kw‘obwire bw‘obwire bwingi, n‘okukora gye munonga omu kukingaho.
Kwonka, emitwarize y’omubiri eya PTFE, otwariiremu n’okugaziha kwayo okurikukirayo, okuhurira okurikuruga omu bwire bw’obufuki, n’okutambura kubi kw’okwotsya, nibyetenga ngu okukora ebikwato by’okukingaho entebe kurugiirira aha mitwarize egi. N’ahabw’ekyo, ebintu ebirikukingaho byaguma, okwesigwa kw’ekipande nikubura.
Ekindi, PTFE eine omutindo gw’okuzibira obutagatsi bukye kandi neebaasa kukoresibwa ahansi ya 180°C yonka. Okwihaho obutagatsi obu, ebintu ebirikukingaho nibiija kukura. Okuteekateeka aha kukozesa obwire buraingwa, okutwarira hamwe tikirikukoresibwa ahaiguru ya 120°C.
Okukora kwayo okurikutegyeka nikukye munonga kukira okwa globe valve, namunonga valve z’omuyaga (nari valvu z’amashanyarazi).
Globe Valve: Nikimanyisa valve ahu ekintu ky’okukinga (valve disc) kirikugyendera aha rubaju rwa rwagati rw’entebe. Okuhinduka kw’ekiina ky’entebe nikuhikaana n’okutambura kwa disiki ya valve. Ahabw‘orugyendo rukye rw‘okukinga n‘okukinga kw‘omuringo ogu gwa valve n‘omurimo gwayo gw‘okukinga ogurikwesigwa, hamwe n‘enkoragana eri ahagati y‘okuhinduka kw‘ekiina ky‘entebe n‘orugyendo rwa disiki ya valve, nikihikaana munonga n‘okutegyeka okusheesheka. Nahabwekyo, omuringo ogu gwa valve nigukira kukozesebwa omu kukingaho, okutegyeka, n’okukyendeeza aha nkora.
Ebirungi:
Omu bwire bw’okukinga n’okukinga, amaani g’okuteerana ahagati y’ekipande kya valve n’ekicweka ky’okukingaho omubiri gwa valve nigakye munonga kukira ag’ekipande ky’omuryango, ekirikugihindura etarikubaasa kujwara.
Oburaingwa bw’okukingura okutwarira hamwe ni 1/4 yonka ey’omuhanda gw’entebe, ekirikugihindura nkye munonga kukira valvu y’omuryango.
Obwire obwingi, hariho ekicweka kimwe kyonka ekirikukingira aha mubiri gwa valvu n’aha disiki ya valvu, ekirikureetera kyanguha kukora n’okugiboneza.
Nikigira omutindo gw’okugumisiriza obutagatsi bw’ahaiguru ahabw’okuba okukipakira nikukira kuba kurimu okutabura amabaare ga asbestos na graphite. Globe valves nizikira kukozesebwa aha valvu z’omuriro.
Ebibi:
Ahabw‘empindahinduka omu rubaju rw‘okusheesheka kw‘omugati kurabira omu nkora y‘okusheeshasheesha, okuzibira okusheesheka okukye okwa globe valve nikukira okw‘emiringo endiijo mingi ey‘esheeshasheesha.
Ahabw’okuteera okuraingwa, omuvuyo gw’okukingura nigukyeera waagyeragyeranisa n’omupiira gw’okuteera.
Plug Valve: Nikimanyisa valve erikwetoorora erimu ekintu ky’okukinga omu muringo gwa cylinder nari cone plug. Ekikwato kya valve aha valve ya plug nikihindurwa diguri 90 kukwatira hamwe nari kutaanisa omuhanda oguri aha mubiri gwa valve, kuhikiiriza okukinga nari okukinga kwa valve. Enkora ya valve plug neebaasa kuba ey’ekibumbe ky’ekibumbe nari ey’ekibumbe ky’ekibumbe. Omusingye gwayo nigushushana n’ogwa ball valve, ogwakozirwe kurugiirira aha plug valve kandi nigukira kukozesebwa omu kucondooza amajuta hamwe n’amakorero g’amajuta.
Safety Valve: Nikikora nk’ekintu ky’okurinda omuyaga ogurengire aha bimotoka, ebikwato, nari emipiira erimu omuyaga. Pressure eri omunda y’ekikwato, ekikopo, nari omupiira gwaba nigurenga aha muheendo ogurikwikirizibwa, valve neekinguka ahabwayo kurekura obushoboorozi bwona, ekirikuzibira pressure kwongyera kweyongyera. Pressure ku erikuba neegwa kuhika aha muheendo oguteirweho, valve eshemerire kwekingaho ahonaaho kurinda okukora gye kw’ebikwato, ekigaari, nari omupiira.
Omutego gw’Omwoya: Omu kutwara omuyaga, empeho erikunyigirizibwa, n’ebindi, amaizi g’omuyaga nigakorwa. Okureeba ngu ekikwato kyakora gye kandi kyakora gye, nikyetengyesa okushohoza ebikwato ebi ebitari by‘omugasho kandi eby‘akabi omu bwire kubaasa kuguma nookozesa n‘okukoresa ekikwato. Nikigira emirimo egi: (1) Nikibaasa kurahuka kusheesha amaizi g’omucuucu agarikuruga omu itaka. (2) Nikizibira okusheeshasheesha kw’omuriro. (3) Nikiihaho ..
Pressure Reducing Valve: Ni valve erikukyendeeza aha pressure y‘okutaaha kuhika aha pressure y‘okushohoza erikwetengyesa kurabira omu kuhindura kandi neeyesiga amaani g‘omugati gwonka kubaasa kuguma n‘okushohoza pressure egumire.
Reeba Valvu: Kandi nikimanyirwa aha nkora y‘okutagaruka enyima, ekirikuzibira okugaruka enyima, ekirikugaruka enyima, nari ekirikugyendera omu muhanda gumwe. Ezo nshaho niziigura kandi zikingwa ahabw’amaani agarikuruga omu kusheesheka kw’ekintu ekirimu omu payipu, ekirikuzihindura ekika ky’enshaho erikwekorera. Check valves nizikoresibwa omu nkora z‘emipiira kandi emirimo yaazo emikuru n‘okuzibira okugaruka enyima kw‘omugati, okuzibira okugaruka enyima kwa pampu n‘emotoka ezirikuvuga, n‘okurekura eby‘okukoresa omu konteyina. Check valves nizibaasa n‘okukoresibwa aha mipiira erikuhereza enkora z‘okuhwera ahu puresha erikubaasa kutunguuka ahaiguru ya puresha y‘enkora. Okukira munonga nibibaasa kugabwa omu muringo gw‘okwehindura (okwehindura kurugiirira ahagati y‘amaani g‘ensi) n‘omuringo gw‘okusimura (okugyendera aha rubaju rw‘omutindo).
Obwire bw'okuhandiika: Okwamukaaga-03-2023
