Kufuneka ulawule ukuhamba kwamanzi, kodwa jonga iindidi ezininzi zeevalvu. Ukukhetha engalunganga kunokubangela ukuvuza, ukuvaleka, okanye ukusilela ukulawula inkqubo yakho ngokufanelekileyo, okukhokelela kumonakalo onexabiso elikhulu.

Zininzi iindidi zeevalvu zePVC, kodwa ezona zixhaphakileyo zeziiivalve zebholakulawulo/lokucima,khangela iivalveukuthintela ukubuyela umva, kunyeiivalve zesangoukwenzela ukuba wedwa. Uhlobo ngalunye lwenza umsebenzi owahluke kakhulu phakathi kwenkqubo yamanzi.

Ukuqonda umsebenzi osisiseko wevalve nganye kubalulekile. Ndihlala ndisebenzisa isifaniso esilula xa ndithetha namaqabane afana noBudi eIndonesia. Ivalve yebhola ifana neswitshi yokukhanya—inokukhanya okanye icime, ngokukhawuleza. Ivalve yesango ifana nomqobo ocothayo, owenziwe ngabom. Kwaye ivalve yokukhangela ifana nocango oluya calanye oluvumela izithuthi zingene kwicala elinye. Abathengi bakhe-iikontraki, abalimi, abafakeli be-pool-bafumana oku kwenza kube lula ukukhetha imveliso efanelekileyo. Nje ukuba uyazi ukuba yintoni umsebenzi ekufuneka wenziwe yivalve, ukhetho luyacaca.

Ngaba zonke iivalvu zePVC ziyafana?

Ubona iivalvu ezimbini zePVC zebhola ezikhangeleka ziyafana, kodwa enye ixabisa ngokuphindwe kabini. Kuyahenda ukuthenga leyo inexabiso eliphantsi, kodwa unexhala lokuba iya kusilela kwaye ibangele intlekele.

Hayi, zonke iivalvu zePVC azifani. Zahluke kakhulu kumgangatho wezinto eziphathekayo, imathiriyeli yokutywina, uyilo, kunye nokuchaneka kokwenziwa. Lo mahluko uchaphazela ngokuthe ngqo ukuba i-valve ihlala ixesha elide kangakanani kwaye isebenza ngokuthembekileyo kangakanani phantsi koxinzelelo.

Umahluko phakathi kwevalve enkulu kunye nehlwempu kwiinkcukacha ongenakuhlala uzibona. Okokuqala yiPVC izintongokwayo. Thina ePntek sisebenzisa i-100% ye-PVC enyulu, eyomeleleyo, ehlala ixesha elide, kwaye inokugqiba kwegloss ephezulu. Iivalvu ezingabizi kakhulu zihlala zisebenzisa iPVC ehlaziyiweyo exutywe nezihluzi ezifanacalcium carbonate. Oku kwenza ukuba ivalve ibenzima, kodwa iphinde ibe brittle kwaye ithande ukuqhekeka. Ezilandelayo zeziamatywina. Amaringi amhlophe angaphakathi kwelo tywina ibhola abizwa ngokuba zizihlalo. Iivalvu ezisemgangathweni zisebenzisa ecocekileyoI-PTFE (Teflon)ukwenzela itywina eligudileyo, eliphantsi, elihlala ixesha elide. Abangabizi kakhulu basebenzisa iiplastiki zomgangatho ophantsi eziguga ngokukhawuleza. I-O-rings emnyama kwi-stem kufuneka ibe yi-EPDM, egqwesileyo emanzini kunye nokumelana ne-UV, kungekhona irabha ye-NBR engabizi. Ekugqibeleni, kuya kuba njaloukuchaneka. Imveliso yethu ezenzekelayo iqinisekisa ukuba ivalve nganye ijika kakuhle. Iivalve ezenziwe kakubi zinokuqina kwaye kube nzima ukuzijika, okanye zikhululekile kangangokuba ziziva zingathembekanga.

Yeyiphi engcono, i-PVC okanye ivalve yentsimbi?

Intsimbi ivakala inzima kwaye yomelele, ngelixa iPVC ivakala ilula. Ithuku lakho lithi isinyithi sihlala silukhetho olungcono, kodwa loo ngcinga inokukhokelela kwinkqubo engaphumeleliyo ekudlekeni.

kananjalo ayilunganga; bakhelwe imisebenzi eyahlukeneyo. I-PVC iphezulu kumanzi abandayo kunye neendawo ezinobungozi apho isinyithi sinokurusa okanye ukuhlutha. Isinyithi siyimfuneko kubushushu obuphezulu, uxinzelelo oluphezulu, kunye neekhemikhali ezithile.

Ukukhetha phakathi kwePVC kunye nentsimbi akukho malunga namandla, malunga nekhemistri. Inzuzo enkulu yePVC kukubaakhuselekanga kumhlwa kunye nomhlwa. UBudi unomthengi okwishishini lezasemanzini owayedla ngokutshintsha izivalo zakhe zobhedu minyaka le ngenxa yokuba amanzi anetyuwa ayebenza bahluthe. Ukusukela ekutshintsheni kwiivalvu zethu zePVC, unemiba engu-zero iminyaka emihlanu. Basebenza ngokutyibilikayo njengosuku lokuqala. Kulapho iPVC iphumelele khona: ukunkcenkceshela ngezichumisi, amadama okuqubha, imigca yamanzi etyuwa, kunye nemibhobho yamanzi ngokubanzi. Nangona kunjalo, iPVC inemida yayo. Ayinakusetyenziselwa amanzi ashushu, njengoko iya kuthamba kwaye ingaphumeleli. Kananjalo inemilinganiselo ephantsi yoxinzelelo kunentsimbi. Ivalve yesinyithi (njengentsimbi okanye ubhedu) iyona kuphela ekhethwayo kwimigca yomphunga, iinkqubo zamanzi ashushu, okanye usetyenziso lweshishini oluphezulu kakhulu. Undoqo kukutshatisa imathiriyeli yevalvu kulwelo oluqukuqela kuyo.

I-PVC vs. Isinyithi: Yeyiphi omawuyikhethe?

Yintoni eyenza ivalve yePVC 'elungileyo'?

Uthenga kwi-intanethi kwaye ufumane ivalve yePVC ngexabiso eliphantsi kakhulu. Uyazibuza ukuba kukuthenga ngobuchule okanye ukuba uthenga ingxaki yexesha elizayo eya kuvuza nge-2 AM.

Ivalve ye-PVC "elungileyo" yenziwe kwi-100% ye-PVC enyulu, isebenzisa izihlalo eziphezulu ze-PTFE kunye ne-EPDM O-rings, ijika kakuhle, kwaye iye yavavanywa kwi-factory ukuqinisekisa ukuba ayivuzi.

Kukho izinto ezimbalwa endixelela iqela likaBudi ukuba lizijonge. Okokuqala, jonga iumzimba. Kufuneka ibe nesiphelo esigudileyo, esimenyezelayo. Inkangeleko ebuthuntu, echaki idla ngokubonisa ukusetyenziswa kwezizalisi, nto leyo eyenza ibe brittle. Isibini,sebenzisa isiphatho. Kufuneka ijike ngokugudileyo, ukuchasana okungaguqukiyo ukusuka ekuvuleni ngokupheleleyo ukuya kukuvalwa ngokupheleleyo. Ukuba iqinile kakhulu, iyaxhuzula, okanye ivakele intlama, ukubumba kwangaphakathi kubi. Oku kukhokelela ekuvuzeni kunye nomqheba onokusuka. Okwesithathu, khangelaamanqaku acacileyo. I-valve yekhwalithi iya kuphawulwa ngokucacileyo ngobukhulu bayo, ukulinganiswa koxinzelelo (njenge-PN10 okanye i-PN16), kunye nohlobo lwezinto eziphathekayo (PVC-U). Abavelisi abahloniphekileyo bayaziqhenya ngee-specs zabo. Ekugqibeleni, kuhla ukuthembela. EPntek, ivalve nganye esiyenzayo iyavavanywa phambi kokuba iphume kumzi-mveliso. Oku kuqinisekisa ukuba ayizuvuza. Nantso into engabonakaliyo oyihlawulelayo: uxolo lwengqondo oluya kusebenza ngokulula.

Ngaba ivalve entsha yePVC yenza umahluko?

Unevalve endala eqinile ukujika okanye ethontsi kancinci kakhulu. Kubonakala ngathi yinto encinci, kodwa ukuyihoya kunokushiya inkqubo yakho isesichengeni kwiingxaki ezinkulu.

Ewe, ivalve entsha yePVC yenza umahluko omkhulu. Kwangoko iphucula ukhuseleko ngokubuyisela imathiriyeli enqabileyo, iqinisekisa itywina eligqibeleleyo lokumisa ukuvuza, kwaye ibonelela ngokugudileyo, ukusebenza okuthembekileyo xa uyifuna kakhulu.

Ukutshintsha ivalve endala asikokulungisa nje; luphuculo olukhulu kwiindawo ezintathu eziphambili. Okokuqala kukubaukhuseleko. Ivalve ye-PVC ebiselangeni iminyaka iba brittle. Isibambo sinokuqhawula, okanye ngakumbi, umzimba unokuqhekeka kwimpembelelo encinci, ebangela umkhukula omkhulu. Ivalve entsha ibuyisela amandla ento yokuqala. Okwesibini nguukuthembeka. Ukuthontsiza okucothayo kwivalve endala kungaphezulu nje kokumoshakala kwamanzi; ibonisa ukuba amatywina angaphakathi awaphumelelanga. Ivalve entsha enezihlalo ezitsha ze-PTFE kunye ne-EPDM O-rings ibonelela ngokugqibeleleyo, ukuvala iqamza okuqinileyo onokuthi uthembele kulo. Okwesithathu kukubaukusebenza. Ngexesha likaxakeka, kufuneka uvale amanzi ngokukhawuleza. Ivalve endala eqinile ngenxa yobudala okanye isikali ayinamsebenzi. Ivalve entsha ijika kakuhle, ikunika ulawulo olukhawulezileyo. Ngexabiso elincinci le-aivalve, ubuyisela ukhuseleko, ukuthembeka, kunye nomsebenzi wendawo yokulawula ebalulekileyo kwinkqubo yakho.

Ukuqukumbela

EyahlukileyoIivalvu zePVCukwenza imisebenzi ethile. Umgangatho uchazwa ngemathiriyeli esulungekileyo kunye nokuveliswa ngokuchanekileyo, okuqinisekisa ubomi obude kunye nobuthembeke ngakumbi kunenye into enexabiso eliphantsi.