**Mavalvu aabutterfly aajisi EPDM: kulangisisya koonse**
Mavalvu aabutetenzintu ziyandika kapati mumilimo yiindene-indene mumafakitali, kupa kweendelezya kubotu kwamaanzi mumapaipi. Akati kamisyobo yiindene-indene yamavwili aabutterfly, mavwili aabutterfly aajisi raba alalibonya akaambo kabupange bwawo bulibedelede akubeleka kwawo. Chimwi chazintu zipati zyasumpuka muchibaka eechi nkutambula EPDM (ethylene propylene diene monomer) zikwabilizyo, eezyo zipa kuti vvalavu ibeleke kabotu akuyuma.
Zijazyo zya EPDM zilizyibidwe kuti zilakonzya kukazya kupya, ozone akutontola, zipa kuti zibelesyegwe kabotu mubukkale bukatazya. Nizibikkidwe mumavuluvu aajisi raba, zijazyo zya EPDM zipa kuti kujalwe kabotu, ikucesya ntenda yakuvwundauka akusinizya kuti kweenda kweenda kabotu. Eezi zilayandika kapati mumakwebo aali mbuli kusalazya maanzi, kubamba makemikalu anzila zya HVAC, ooko kubamba bulondo bwanzila nkokuyandikana.
Mavwili aabutterfly aakkede a rabaa EPDM seals zipa bubotu bwiingi. Chakusanguna, EPDM ilakonzya kuliyumya kutempelecha mpati, kanjikanji -40°C kusika ku 120°C, kupa kuti ibe kabotu kubelesyegwa kupya akutontola. Chabili, kusanduka kwachibbula cha raba kupa kuti kube kubeleka kabotu, kuchesya nguzu ziyandika kujalula akujala vvalavu. Eechi chintu tachigwasyi buyo kugwasya sikubelesya, pesi chiyungizya buumi bwamavwili.
Mukuyungizya, bupange bwa butterfly valve butakwe buyumuyumu, antoomwe a EPDM seal, zipa kuti kube kuubauba kubikka akubamba. Babelesyi balakonzya kufwambaana kuchincha chisinkilizyo kakunyina kuyandika zibelesyo zilibedelede, kuchitila kuti kutabi chiindi chilamfu pe.
Mukumanizya, mavwili aabutterfly aajisi raba aajisi zijazyo zya EPDM ziiminina bupya bupati mubusongo bwakweendelezya kweenda kwamaanzi. Kuyuma kwazyo, kukazyigwa azintu zili muchilengwaleza akuubauba kwakubamba zipa kuti zibe zintu zibotu zyakubelesya mumafakitali manji. Mbuli makwebo mbwaazumanana kuyaambele, kuyanda nzila zyamavwili zisyomeka alimwi zibeleka kabotu kuyookomena, aboobo kuyooyumya mulimo wa EPDM-sealed butterfly valves mubusongo bwamazubaano.
Chiindi chakutumizya: Jan-03-2025
