**Iivalve zebhabhathane ezihleli irabha ezinezitywina ze-EPDM: uphononongo olubanzi**
Iivalve zebhabhathanengamacandelo abalulekileyo kwizicelo ezahlukeneyo zemizi-mveliso, ezibonelela ngolawulo olusebenzayo lokuhamba kwimibhobho. Phakathi kweentlobo ezahlukeneyo zeiivalve butterfly, iivalve zebhabhathane ezihleli zerabha zigqame ngenxa yoyilo lwazo kunye nokusebenza kwazo. Enye yezona zinto zibalulekileyo zokuqhubela phambili kolu didi kukwamkelwa kwe-EPDM (ethylene propylene diene monomer) izitywina, eziphucula ukusebenza kunye nokuqina kwevalve.
Izitywina ze-EPDM ziyaziwa ngokuxhathisa kwazo kakhulu kubushushu, i-ozone kunye nemozulu, ezenza zilungele izicelo ezifuna ukutywinwa okuthembekileyo kwiimeko ezinzima. Xa idityaniswe kwiivalvu zebhabhathane ezihleli zerabha, izitywina ze-EPDM zibonelela ngokuvalwa okuqinileyo, ukunciphisa umngcipheko wokuvuza kunye nokuqinisekisa ulawulo olululo lokuhamba. Oku kubaluleke kakhulu kumashishini afana nokucocwa kwamanzi, ukusetyenzwa kweekhemikhali kunye neenkqubo ze-HVAC, apho ukugcina ukunyaniseka kwenkqubo kubalulekile.
Irabha ehleli iivalvu zebhabhathanengamatywina e-EPDM anika iingenelo ezininzi. Okokuqala, izinto ze-EPDM zinokumelana nomgangatho obanzi weqondo lokushisa, ngokuqhelekileyo -40 ° C ukuya kwi-120 ° C, okwenza ukuba ifaneleke kuzo zombini izicelo ezishushu nezibandayo. Okwesibini, ukuguquguquka kwesihlalo se-rubber kuvumela ukusebenza kakuhle, ukunciphisa i-torque efunekayo ukuvula nokuvala i-valve. Olu phawu alugcini nje ukwandisa amava omsebenzisi, kodwa lwandisa ubomi bendibano yevalvu.
Ukongeza, uyilo olukhaphukhaphu lwevalve yebhabhathane, ludityaniswa netywina layo eliqinileyo le-EPDM, livumela ukufakwa kunye nokugcinwa lula. Abasebenzisi banokutshintsha ngokukhawuleza itywina ngaphandle kwesidingo sezixhobo ezikhethekileyo, ukuqinisekisa ixesha elincinci lokunciphisa.
Ukuqukumbela, iivalve zebhabhathane ezihleli zerabha ezinamatywina e-EPDM zimele ukutsha okubalulekileyo kobuchwephesha bolawulo lokuhamba. Ukuqina kwabo, ukuchasana nezinto ezisingqongileyo kunye nokulula kokugcinwa kubenza babe lukhetho oluphezulu kuluhlu olubanzi lwezicelo zoshishino. Njengoko ishishini liqhubeka nokuvela, imfuno yezisombululo zevalvu ezithembekileyo nezisebenzayo ngokungathandabuzekiyo iya kukhula, ngaloo ndlela idibanisa indima yeevalvu zebhabhathane ezitywiniweyo ze-EPDM kubunjineli bale mihla.
Ixesha lokuposa: Jan-03-2025
