Mavalvu aanyika yoonse, mavalvu aamulyango, mavalvu aabutterfly, mavalvu aakulanga-langa alimwi amavalvu aamubbola zyoonse nzintu ziyandika kapati mukweendelezya mapaipi aandeene-andeene mazubaano. Ivalvu imwi aimwi iliindene mukuboneka, mboipangidwe alimwi akubeleka kwayo. Nokuba boobo, vvalavu ya globe a vvalavu yamulyango zilijisi zintu zimwi zikozyenye mukuboneka, alimwi aciindi nciconya zilijisi mulimo wakukosola mupaipi, aboobo kuyooba beenzuma banji batakwe kuswaangana kapati a vvalavu kutegwa banyonganye zyoonse zyobile. Mubunike, kuti walanga kabotu, kusiyana aakati ka valve ya globe a gate valve kuchili kupati.
- Chibumbwa
Mubukkale bwakubikkila busena busyoonto, nkuko kuyandika kubikkila maanu kukusala kwa:
Ivalvu yamulyango ilakonzya kujalwa kabotu-kabotu abusena bwakujala kwiinda mukusyoma nguzu zili akati-kati, kuchitila kuti kutabi kuvwundauka. Notujalula akujala, ntalisyo yavalvu abusena bwakujala bwavalvu lyoonse zilajatikizyigwa akujatana, aboobo busena bwakujala bulaubauba kusama, mpawo aawo vvalavu lyamulyango noli afwaafwi kujala, kwiimpana kwakusinkilila aakati kakumbele akusyule lyamupayipi nkupati loko, kupa kuti busena bwakujala buvwule bupati.
Bupange bwa vvalavu yamulyango buyooba buyumu kwiinda vvalavu ya globe, kuzwa mukulanga mboiboneka, muchiimo cheegubi lyomwe, vvalavu yamulyango ilisumpukide kwiinda vvalavu ya globe, mpawo vvalavu ya globe njilamfwu kwiinda vvalavu yamulyango. Mukuyungizya, vvalavu lyamulyango lyaandaanizyigwa kuba musako uumweka amusako uusiya. Ivalvu ya globe taili boobo pe.
- Beleka
Eelyo vvalavu lyanyika nolijulwa akujalwa, nchintu chitanta, nkokuti, vwili lyamaanza lilazungaana, mpawo vwili lyamaanza lilazungaana akunyamuna antoomwe a ntambo ya vvalavu. Ivalvu yamulyango njakujokolosya vwili lyamaanza, kuchitila kuti chisiko chichite kweenda kwakunyamuna, mpawo busena bwavwili lyamaanza tabuchinchi pe.
Kuzuza kwamaanzi kulaandeene, amavalvu aamulyango ayanda kujalwa koonse, mpawo mavalvu aamulyango taakwe pe. Ivalavu ya globe ilijisi nzila yakunjilila akuzwa, mpawo vvalavu yamulyango taikwe nzila yakunjizya akugwisya.
Mukuyungizya, vvalavu yamulyango ilijalukide biyo naa kujalwa muzibeela zyobile, kujalulwa akujalwa kwamulyango kwa stroke nkupati loko, chiindi chakujalula akujala nchilamfu. Ikweendeenda kwa vvalavu ya vvalavu ya globe nkusyoonto loko, mpo bbaaji lya vvalavu lya vvalavu lya globe lilakonzya kwiima abusena bumwi mukweenda kuchitila kuti kweendeenda kuchinche. Ivalvu yamulyango ilakonzya kubelesegwa biyo mukukosola mpawo taikwe mulimo umbi pe.
- Musaano
Ivalvu ya globe ilakonzya kubelesegwa kugonka akubamba kweenda. Kukazyigwa kwamaanzi kwa valve ya globe nkupati, alimwi nkuyumu kujalula akujala, pesi nkaambo kakuti valve plate ncifwiifwi kuzwa aawo mpo chijala, kujalula akujala nkufwiifwi.
Nkaambo kakuti vvalavu yamulyango ilakonzya buyo kujalulwa akujalwa, eelyo noijalulwa, kukazyigwa kwakuzuza kwamukati-kati mumulyango wamulyango kuli afwaafwi kusika ku 0, aboobo kujalula akujala vvalavu yamulyango kuyoogwasya kukwabilila chiindi chilamfu, pesi bbaaji lyamulyango lili kule aabusena bwakujala, mpawo chiindi chakujalula akujala nchilamfu.
- Kubikka anzila yakutobelezya
Ikugwasya kwa vvalavu lyamulyango kweenda mumabazu oonse obile nkukonya, mpo kunyina kuyandika kwakunjilila akuzwa kwakubikkwa, mpawo akati-kati kalakonzya kweenda mumabazu oonse. Ivalvu yanyika yoonse yeelede kubikwa kweendelana anzila yakutondezya musemu wa mubili wa valve, alimwi kuli bubambe busalala bwakunjizya akugwisigwa kwa valve ya globe, mpawo nzila yeenda ya globe valve "yotatwe kuya" mu China izwa atala kuya ansi.
Ivalvu ya globe ili munsi-munsi mpawo ili atala anze, mpawo kuzwa anze kuli mapaipi aalibonya aatali aa phase level. Ibbazu lyamulyango lili mumuzila uulangene. Kuzungaana kwa vvalavu yamulyango nkupati kwiinda kwa vvalavu ya globe.
Kuzwa mukulanga kwakukazya kweenda, kukazyigwa kweenda kwavalvu yamulyango nkusyoonto aawo noijalukide, mpawo kukazyigwa kweenda kwavalvu yakulesya mukuli nkupati. Ikukaka kweenda kwamaanzi aamulyango uli afwaafwi kusika ku 0.08~0.12, manguzu aakujalula akujala masyoonto, mpawo aakati-akati alakonzya kweenda mumabazu obile. Kukazyigwa kweenda kwamavalvu aakujala kwabuzubaa buzuba kuli ziindi zili 3-5 kwiinda kwamavalvu aamulyango. Notujula akujala, nkuko kuyandika kusinikizya kujala kuti kujalwe, ntalisyo ya valve ya globe valve ilajatikizyigwa buyo aabusena bwakujala aawo noijalidwe, aboobo kubola kwabusena bwakujala nkusyoonto loko, nkaambo kweenda kwanguzu zipati kuyandika kuyungizya actuator ya globe valve yeelede kubikkila maanu kukweendelezya nzila yakucinca torque.
Ivalvu ya globe ilijisi nzila zyobile zyakubikkwa, yomwe njakuti nzila ilakonzya kunjila kuzwa munsi lya valve spool, bubotu mbwakuti eelyo valve niyajalwa, kupaka takuli munsi lyakusinikizyigwa, buumi bwakupaka bulakonzya kuyungizigwa, mpawo mulimo wakucinca packing ulakonzya kuchitwa munsi lyakusinikizyigwa mumupayipi uuli kunembo lya valve; penzi ndyakuti nguzu zyakweenzya zya valve nzipati, eezyo zili 1 ziindi zyaatala, mpawo nguzu zya axial zya valve stem nzipati, mpawo valve stem nchuuba kugonka.
Aboobo, eeyi nzila ilakonzya kubelesegwa buyo kumavalvu aa globe masyoonto (DN50 naa aansi), mpawo ma globe valve aali atala a DN200 ngaasalwa kuti abelesye nzila yazyintu zizwa atala. (Mavalvu aakujala magesi kanjikanji abelesya nzila yakunjila kuzwa atala.) Bubi bwanzila nzila nzila zyakunjila kuzwa atala ziliimpene anzila mbozinjila munsi.
- Kujala
Busena bwakujala bwa valve bwa globe mbubbazu buniini bwa trapezoidal bwa valve core (amulangisisye bupange bwa valve core), aawo valve core niyawa, chili mbuli kujala kwa valve (ikuti kwiimpana kwanguzu nkupati, masimpe, kujala takuli kwanguzu pe, pesi kujokela musyule takuli kubi pe), gate valve ilajalwa kulubazu lwa valve, plate plate kujala takuli kabotu mbuli vvalavu ya globe, mpawo ntalisyo ya vvalavu taikonzyi kuwa mbuli vvalavu ya globe.
Chiindi chakutumizya: Apr-01-2022
