Kufuneka uthenge iivalve zePVC kwiprojekthi, kodwa ikhathalogu inzima. Ibhola, itshekhi, ibhabhathane, idiaphragm—ukukhetha engalunganga kuthetha inkqubo evuzayo, engaphumeleliyo, okanye engasebenzi kakuhle.

Iindidi eziphambili zeevalvu ze-PVC zihlelwe ngomsebenzi wazo: iivalve zebhola zokulawula / ukuvala, iivalve zokujonga ukukhusela umva, iivalve zebhabhathane zokubethela imibhobho emikhulu, kunye neevalvu ze-diaphragm zokuphatha i-corrosive or sanitary fluids.

Lo ngumbuzo endiwuxoxa rhoqo namaqabane am, kuquka uBudi, umphathi ophezulu wokuthenga e-Indonesia. Abathengi bakhe, ukusuka kwiikontraka ukuya kubathengisi, kufuneka bazi ukuba bafumana isixhobo esifanelekileyo somsebenzi. Ainkqubo yemibhobhoyomelele kuphela njengeyona nxalenye yayo ibuthathaka, kwaye ukhetha echanekileyouhlobo lwevalvulinyathelo lokuqala lokwakha inkqubo ethembekileyo nehlala ixesha elide. Ukuqonda lo mahluko asilolwazi lobugcisa kuphela; sisiseko seprojekthi eyimpumelelo.

Ngaba kukho iintlobo ezahlukeneyo zeevalvu ze-PCV?

Uva igama elithi "ivalve yePVC" kwaye unokucinga ukuba yinto enye, imveliso eqhelekileyo. Le ngcinga inokukhokelela ukuba ufake i-valve engakwazi ukuphatha uxinzelelo okanye ukwenza umsebenzi owufunayo.

Ewe, zininzi iintlobo zeevalvu zePVC, nganye inesixhobo esikhethekileyo sangaphakathi esenzelwe umsebenzi othile. Ezona zixhaphakileyo zezokuqala/zokumisa ukuqukuqela (iivalvu zebhola) kwaye zithintele ngokuzenzekelayo ukubuya umva (jonga iivalvu).

Ukucinga ukuba zonke iivalve zePVC ziyafana yimpazamo eqhelekileyo. Enyanisweni, inxalenye ye-“PVC” ichaza nje into eyenziwe ivelufa—iplastiki eyomeleleyo, ekwaziyo uku- rhorho. Inxalenye ye "valve" ichaza umsebenzi wayo. Ukunceda uBudi kunye neqela lakhe bakhokele abathengi babo, siyabophula ngomsebenzi wabo ophambili. Olu luhlu lulula lunceda wonke umntu ukuba akhethe imveliso efanelekileyo ngokuzithemba.

Nalu ucazululo olusisiseko lwezona ndidi zixhaphakileyo oza kudibana nazo kulawulo lwamanzi:

Zeziphi iintlobo ezine zePVC?

Ubona iilebhile ezahlukeneyo ezifana nePVC-U kunye neC-PVC kwaye uzibuze ukuba zibalulekile na. Ukusebenzisa ivalve esemgangathweni kumgca wamanzi ashushu kuba ubungazi ukuba umahluko kunokubangela ukusilela okukhulu.

Lo mbuzo umalunga nezinto zeplastiki, hayi uhlobo lwevalvu. Izinto ezine eziqhelekileyo ze-PVC-usapho ziyi-PVC-U (eqhelekileyo, yamanzi abandayo), i-C-PVC (yamanzi ashushu), i-PVC-O (amandla aphezulu), kunye ne-M-PVC (i-impact-modified).

Lo ngumbuzo omangalisayo kuba ufikelela entliziyweni yomgangatho wemveliso kunye nokhuseleko losetyenziso. ukubhidanisa iintlobo zevalve ngeentlobo zezinto kulula. E-Pntek, sikholelwa ukuba iqabane elifundileyo liqabane eliphumelelayo, ngoko ke ukucacisa oku kubalulekile. Izinto ezenziwe ngevalvu yakho zichaza imida yayo yobushushu, iqondo loxinzelelo, kunye nokumelana neekhemikhali.

I-PVC-U (iPolyvinyl Chloride engafakwanga iplastiki)

Olu lolona hlobo luxhaphakileyo lwePVC olusetyenziselwa imibhobho, izifakelo, kunye neevalvu kuMntla Merika, eYurophu, naseAsia. Iqinile, ayinaxabiso, kwaye imelana kakhulu noluhlu olubanzi lweekhemikhali. Ngumgangatho wokufakwa kwamanzi abandayo. Uninzi lweevalvu zethu zebhola zePntek kunye neevalvu zokujonga ukuba iiodolo zeBudi zenziwe ngePVC-U yodidi oluphezulu.

C-PVC (Chlorinated Polyvinyl Chloride)

I-C-PVC ihamba ngenkqubo eyongezelelweyo yokuthambisa. Olu tshintsho olulula lwandisa kakhulu ukuxhathisa ubushushu. Ngelixa i-PVC-U kufuneka isetyenziswe ukuya kuthi ga kwi-60 ° C (140 ° F), i-C-PVC inokumelana namaqondo obushushu ukuya kuma-93 ° C (200 ° F). Kufuneka usebenzise iivalvu ze-C-PVC kwiintambo zamanzi ashushu.

Ezinye Iintlobo

I-PVC-O (I-Oriented) kunye ne-M-PVC (i-Modified) azixhaphakanga kakhulu kwiivalvu kwaye ngakumbi kwimibhobho yoxinzelelo olukhethekileyo, kodwa kulungile ukwazi ukuba zikhona. Zenzelwa ukulinganiswa koxinzelelo oluphezulu kunye namandla empembelelo angcono.

Zeziphi iintlobo ezintandathu eziphambili zeevalvu?

Wakha inkqubo entsonkothileyo kwaye udinga okungaphezulu nje kwevalve elula yokuvula/yokucima. Ukubona amagama anje ngo “Globe” okanye “Isango” kunokubhida xa ubukhulu becala usebenza ngeevalvu zebhola zePVC.

Ezona ntsapho zintandathu zisebenzayo zeevalvu yiBhola, iSango, iGlobe, iCheck, iButterfly, kunye neevalvu zeDiphragm. Uninzi luyafumaneka kwi-PVC ukuphatha izicelo apho iivalvu zentsimbi zinokugqwala okanye zibiza kakhulu.

Ngelixa sigxininisa kwiintlobo ze-PVC eziqhelekileyo, ukuqonda yonke i-valve yosapho kukunceda ukwazi ukuba kutheni iivalve ezithile zikhethwa ngaphezu kwezinye. Ezinye ziyimigangatho yoshishino, ngelixa ezinye zezemisebenzi ethile. Olu lwazi lubanzi lunceda iqela likaBudi ukuba liphendule kwaneyona mibuzo ineenkcukacha zabathengi.

Kulawulo lwamanzi ngokubanzi,iivalve zebhola, khangela iivalve, kwayeiivalve butterflyzezona ntlobo zePVC zibalulekileyo ukuba uzazi.

Zeziphi iintlobo ezahlukeneyo zeevalvu zokujonga iPVC?

Udinga ivalve yokukhangela ukunqanda ukuphuma ngasemva, kodwa ubona iinketho ezinje ngo "swing," "ibhola," kunye "nentwasahlobo." Ukufakela engalunganga kunokukhokelela kwintsilelo, ihamile yamanzi, okanye ivalve ingasebenzi kwaphela.

Iindidi eziphambili ze-PVC zokujonga iivalvu kukutshekisha ujingi, ukukhangela ibhola, kunye nokukhangela entwasahlobo. Ngamnye usebenzisa indlela eyahlukileyo yokwenziwa yokumisa ukubuya umva kwaye ifanele ukuqhelaniswa nemibhobho eyahlukeneyo kunye neemeko zokuhamba.

Ivalve yokukhangela ngumgcini othuleyo wenkqubo yakho, esebenza ngokuzenzekelayo ngaphandle kweziphatho okanye amandla angaphandle. Kodwa asingabo bonke abakhuseli abasebenza ngendlela efanayo. Ukukhetha okulungileyo kubalulekile ekukhuselweni kwempompo kunye nokunyaniseka kwenkqubo. Le yinkcukacha endihlala ndiyigxininisa noBudi, njengoko ichaphazela ngokuthe ngqo ukuthembeka kwexesha elide lofakelo lwabathengi bakhe.

PVC Swing Khangela iValve

Olu lolona hlobo lulula. Ibonisa i-hinged flap (okanye idiskhi) ethi ivuleke kunye nokuhamba kwamanzi. Xa amanzi eyeka okanye ehlehla, umxhuzulane kunye noxinzelelo lwangasemva lujiwuzisa iflepsi livale kwisitulo sayo. Zisebenza kakuhle kwimibhobho ethe tyaba okanye kwimibhobho ethe nkqo ehamba phezulu.

Ivalve yePVC yokujonga ibhola

Le yinto yethu ekhethekileyo ePntek. Ibhola engqukuva ihlala kwigumbi. Ukuqukuqela phambili kutyhala ibhola ngaphandle kwendlela yokuqukuqela. Xa ukuqukuqela kubuya umva, ityhala ibhola ibuyele esitulweni, yenze itywina eliqinileyo. Zithembeke kakhulu, zinokufakelwa ngokuthe nkqo okanye ngokuthe tye, kwaye azinahenjisi okanye imithombo yokuguga.

PVC Spring Check Valve

Olu hlobo lusebenzisa i-spring ukunceda ukuvala i-valve ngokukhawuleza xa ukuphuma kuyeka. Eli nyathelo lokuvala ngokukhawuleza lihle kakhulu ekuthinteleni ihamile yamanzi-umothuko owonakalisayo odalwa kukuyeka ukuhamba ngequbuliso. Ziyakwazi ukufakwa kuyo nayiphi na i-orientation.

Ukuqukumbela

Ukukhetha i-valve ye-PVC efanelekileyo kuthetha ukuqonda uhlobo lwayo-ibhola yokulawula, ukukhangela ukubuyisela umva-kunye nezinto zeplastiki ngokwayo. Olu lwazi luqinisekisa ukuthembeka kwenkqubo, luthintela ukungaphumeleli, kwaye lwakha ukuthembela kwabathengi.