Valve nk'ekikwato kikazaarwa kumara enkumi n'enkumi z'emyaka .

Valvuni ekikwato ekirikukoresibwa omu kujanjaaza n’okutegyeka gaasi n’amaizi ekiine ebyafaayo by’emyaka erikurenga rukumi.

Obwahati, omu nkora y’emipiira y’amaizi, ekikwato ky’okutegyeka nikyo kirikutegyeka, kandi omurimo gwakyo omukuru n’okwetaanisa aha bikwato n’enkora y’emipiira, okutegyeka okugyendera, okuzibira okugaruka enyima, okutegyeka n’okushohoza omuhimbo. Ahabw‘okugira ngu ni kikuru munonga kutoorana omubazi gw‘okutegyeka ogurikukirayo kuhikaana n‘enkora y‘emipiira, nikikuru munonga n‘okwetegyereza emitwarize y‘omubazi n‘amatembezo n‘omusingi gw‘okutoorana omubazi.

Pureesha y'eiziina ya valve

Pressure y’eiziina eya valve neemanyisa design erikuheebwa pressure erikukwatagana n’amaani g’ebyoma g’ebicweka by’emipiira, nikwo kugira ngu, ni pressure erikwikirizibwa kukora eya valve aha bwire bw’obutagatsi obumanyirwe, oburikukwatagana n’ebintu bya valve. Pureesha y‘okukora teri nk‘emwe, n‘ahabw‘ekyo, pureesha y‘eiziina n‘ekipimo ekirikurugiirira aha kintu ky‘omubazi kandi kiine akakwate n‘obutagatsi oburikwikirizibwa kukora n‘obutagatsi bw‘okukora bw‘ekintu.

Valve n’ekintu ekiri omu nkora y’okutambura kw’eshagama nari enkora ya pressure, ekirikukoresibwa kuhindura okutambura nari pressure y’eshagama y’omugati. Ebindi bikorwa harimu okukingaho nari okutaho eby‘amakuru, okutegyeka okutambura, okuhindura ahu eby‘amakuru birikugyendera, okuzibira eby‘amakuru kugaruka enyima, n‘okutegyeka nari okushohoza omuyaga.

Emirimo egi neehikirizibwa omu kuhindura omwanya gw‘okukingaho valvu. Okuhindura oku nikubaasa kukorwa omu ngaro nari omu muringo gw’okwekorera. Okukora n’emikono nikutwariramu n’okukora okutegyeka omuvugi n’emikono. Valvu ezirikukoresibwa omu ngaro nizeetwa valvu z’emikono. Valve erikuzibira okugaruka enyima neeyetwa check valve; ekirikutegyeka omuhimbo gw’okuhuumuza nikyetwa safety valve nari safety valve y’okuhuumuza.

Obwahati, eby’obushuubuzi bya valve bibaasize kukora ebiriisa byona eby’okurya .za valvu z'omuryango, globe valves, throttle valves, plug valves, valvu z’omupiira, valvu z’amashanyarazi, valvu z’okutegyeka diaphragm, valvu z’okukyebera, valvu z’okwerinda, valvu z’okukyendeeza pressure, emitego y’omuriro n’evalvu z’okukingaho omu bwire bw’ahonaaho. Ebintu bya Valve eby’emiringo 12, eby’okureeberaho ebirikurenga 3000, n’ebintu ebirikurenga 4000 ebirikushoboorora; ekipimo ky’okukora ekikuru ni 600MPa, ekipimo ky’amaani eky’eiziina ni 5350mm, obutagatsi bw’okukora oburikukirayo ni 1200 .°C, obutagatsi obukye oburikukoresibwa ni -196 .°C, kandi ekirikukoresibwa n’Amaizi, omuyaga, amajuta, omuyaga gw’obuhangwa, ebiriisa by’amaani ebirikushiisha (nk’ekiriisa kya nitric acid ekirimu ebiriisa bingi, asidi y’ekiriisa kya sulfuric acid ekirimu ebiriisa bingi, n’ebindi).

Fayo aha kutoorana valve:

1. Okubaasa kukyendeeza aha buhango bw’eitaka eririkushweka omupiira,valvu y'ekihuguhuguokutwarira hamwe nikitooranwa ahabw’omupiira gw’oburaingwa obuhango; ekizibu ekikuru eky’ekibunu ky’ebinyonyi n’okugira ngu empapura z’ebinyonyi nizitwara ekicweka kimwe ky’amaizi ekirikuraba, ekirikwongyera aha kufeerwa omutwe gumwe;

2. Valvu eza butoosha zirimu .za valvu z'ekihuguhugu, za valvu z'omuryango, ball valves na plug valves, n‘ebindi Omubaro gw‘ebikwato ebirikukoresibwa omu nkora y‘okuha amaizi gushemerire kuteekateekwaho omu kutoorana.

3. Okuteera n’okukora ebikwato by’okuteera omupiira n’ebikwato by’okutaho amaizi (plug valves) nibiguma kandi nibitwara esente nyingi, kandi okutwarira hamwe nibikora gye aha mipiira mikye n’ey’omugati. Ball valve na plug valve nizirinda oburungi bwa valve y’omuryango gumwe, okuzibira amaizi kugyendera omu maizi makye, okukinga okurikwesigwa, okukora okurikuhindukahinduka, okukora gye n’okugiboneza. Valve ya plug nayo eine ebirungi nk’ebyo, kwonka ekicweka ekirikuhingura amaizi ti nkungu ehikire.

4. Ku kiraabe kiine akakwate kakye n’oburaingwa bw’itaka eririkukingira, gyezaho kutoorana valvu y’omuryango; oburaingwa bw’ekikwato ky’omuryango gw’amashanyarazi ekikwato ky’omuryango ekihango ekiine oburaingwa bwingi nikikwata aha buhango bw’omuhanda ogurikushweka eitaka, kandi oburaingwa bw’ekikwato ky’omuryango ekihango ekiine oburaingwa bwingi nibwongyera aha mwanya ogurikwemerera ogurikutwarwa omupiira kandi nibukwata aha ntebeekanisa y’emipiira endiijo ;

5. Omu myaka ehweire, ahabw’okutunguuka omu tekinologiya y’okuteera, okukoresa okuteera omushenyi gw’ekyoma nikibaasa kwetantara nari kukyendeeza aha kukora eby’ebyoma, obwo nikikyendeeza aha sente, n’ahabw’ekyo okubaasa kw’okukoresa ebikwato by’omupiira ebirikukoresibwa omu mipiira y’oburaingwa bw’amaani nikuruga kucondoozibwa. Aha bikwatiraine n‘omurongooti gw‘okutaho ensharo gw‘obuhango bwa kalifa, gushemerire kuteekateekwaho kandi gugabwa kurugiirira aha mbeera y‘omutaano.