Koj yuav tsum yuav PVC li qub rau ib qhov project, tab sis cov catalog yog yooj yim heev. Pob, kos, npauj npaim, diaphragm - xaiv qhov tsis ncaj ncees lawm txhais tau hais tias lub kaw lus xau, tsis ua haujlwm, lossis tsis ua haujlwm zoo.

Cov hom tseem ceeb ntawm PVC li qub yog categorized los ntawm lawv txoj haujlwm: pob li qub rau kev tswj / tawm, kos li qub los tiv thaiv kev rov qab, npauj npaim li qub rau cov kav dej loj, thiab cov diaphragm li qub rau tuav cov kua dej huv lossis huv.

Qhov no yog ib lo lus nug uas kuv tham ntau zaus nrog kuv cov neeg koom tes, suav nrog Budi, tus thawj saib xyuas kev yuav khoom hauv Indonesia. Nws cov neeg siv khoom, los ntawm cov neeg cog lus mus rau cov khw muag khoom, yuav tsum paub tias lawv tau txais cov cuab yeej zoo rau txoj haujlwm. Akav dejtsuas yog muaj zog raws li nws qhov tsis muaj zog tivthaiv, thiab xaiv qhov raughom valveyog thawj kauj ruam mus rau kev tsim kom muaj kev ntseeg siab, kav ntev. Kev nkag siab txog qhov sib txawv no tsis yog kev paub txog kev paub xwb; nws yog lub hauv paus ntawm txoj haujlwm ua tiav.

Puas muaj ntau hom PCV li qub?

Koj hnov ​​​​cov lus "PVC valve" thiab tej zaum yuav xav tias nws yog ib qho khoom lag luam. Qhov kev xav no tuaj yeem ua rau koj txhim kho lub valve uas tsis tuaj yeem tuav lub siab lossis ua haujlwm raws li koj xav tau.

Yog lawm, muaj ntau ntau hom PVC li qub, txhua tus muaj qhov tshwj xeeb sab hauv uas tsim los rau ib txoj haujlwm tshwj xeeb. Feem ntau yog rau kev pib / nres ntws (pob li qub) thiab cia li tiv thaiv kev thim rov qab (khoom li qub).

Xav tias txhua qhov PVC li qub yog tib yam yog qhov yuam kev. Hauv kev muaj tiag, "PVC" ntu tsuas yog piav qhia txog cov khoom siv lub valve yog tsim los ntawm cov yas ruaj khov, corrosion-resistant yas. Ntu "valve" piav txog nws txoj haujlwm. Txhawm rau pab Budi thiab nws pab neeg coj lawv cov neeg siv khoom, peb rhuav tshem lawv los ntawm lawv txoj haujlwm tseem ceeb. Qhov kev faib tawm yooj yim no pab txhua tus xaiv cov khoom tsim nyog nrog kev ntseeg siab.

Ntawm no yog ib qho kev sib cais yooj yim ntawm ntau hom uas koj yuav ntsib hauv kev tswj dej:

Plaub hom PVC yog dab tsi?

Koj pom cov ntawv sib txawv xws li PVC-U thiab C-PVC thiab xav tias lawv tseem ceeb. Siv tus qauv valve hauv kab dej kub vim koj tsis paub qhov txawv tuaj yeem ua rau muaj kev puas tsuaj loj.

Lo lus nug no yog hais txog cov khoom siv yas, tsis yog hom valve. Plaub yam khoom siv hauv tsev neeg PVC yog PVC-U (tus qauv, rau cov dej txias), C-PVC (rau cov dej kub), PVC-O (siab-lub zog), thiab M-PVC ( cuam tshuam-hloov).

Qhov no yog ib lo lus nug zoo heev vim nws tau mus rau lub plawv ntawm cov khoom zoo thiab kev nyab xeeb ntawm daim ntawv thov. confuse valve hom nrog cov khoom siv yog ib qho yooj yim. Ntawm Pntek, peb ntseeg tias tus khub kawm ntawv yog tus khub ua tau zoo, yog li qhia meej qhov no yog qhov tseem ceeb. Cov khoom koj lub valve yog tsim los ntawm dictates nws qhov kub thiab txias, ntsuas ntsuas, thiab tshuaj tiv thaiv.

PVC-U (Unplasticized Polyvinyl Chloride)

Qhov no yog hom PVC feem ntau siv rau cov kav dej, fittings, thiab li qub hauv North America, Europe, thiab Asia. Nws yog nruj, raug nqi, thiab tiv taus ntau yam tshuaj. Nws yog tus qauv rau kev siv dej txias. Feem ntau ntawm peb Pntek pob li qub thiab kos li qub uas Budi xaj yog tsim los ntawm qib siab PVC-U.

C-PVC (Chlorinated Polyvinyl Chloride)

C-PVC mus dhau txheej txheem chlorination ntxiv. Qhov kev hloov pauv yooj yim no ua rau nws qhov kub thiab txias. Thaum PVC-U yuav tsum tsuas yog siv mus txog 60 ° C (140 ° F), C-PVC tuaj yeem tswj qhov kub txog li 93 ° C (200 ° F). Koj yuav tsum siv C-PVC li qub rau cov kab dej kub.

Lwm hom

PVC-O (Oriented) thiab M-PVC (Hloov kho) tsis tshua muaj rau cov li qub thiab ntau dua rau cov kav dej tshwj xeeb, tab sis nws yog qhov zoo kom paub tias lawv muaj nyob. Lawv raug tsim los rau kev ntsuas siab dua thiab muaj zog cuam tshuam zoo dua.

Dab tsi yog rau lub ntsiab ntawm valve?

Koj tab tom tsim cov txheej txheem nyuaj thiab xav tau ntau tshaj li qhov yooj yim rau / tawm valve. Pom cov npe xws li "Globe" lossis "Gate" tuaj yeem tsis meej pem yog tias koj feem ntau ua haujlwm nrog PVC pob li qub.

Rau cov tsev neeg ua haujlwm tseem ceeb ntawm li qub yog Pob, Rooj vag, Globe, Kos, Npauj Npaim, thiab Diaphragm li qub. Feem ntau muaj nyob rau hauv PVC los tuav daim ntawv thov qhov twg hlau li qub yuav corrode los yog kim heev.

Thaum peb tsom mus rau ntau hom PVC, kev nkag siab tag nrho tsev neeg lub valve yuav pab koj paub tias vim li cas qee qhov valve raug xaiv dua lwm tus. Qee qhov yog cov qauv kev lag luam, thaum lwm tus yog rau cov haujlwm tshwj xeeb. Qhov kev paub dav dav no pab Budi pab neeg teb txawm tias cov lus nug ntxaws tshaj plaws ntawm cov neeg siv khoom.

Rau kev tswj dej dav dav,pob li qub, check li qub, thiabnpauj npaim li qubyog hom PVC tseem ceeb tshaj plaws kom paub.

Dab tsi yog qhov txawv ntawm PVC kos li qub?

Koj xav tau lub pob valve txhawm rau tiv thaiv kev rov qab, tab sis koj pom cov kev xaiv xws li "s viav vias," "pob," thiab "caij nplooj ntoos hlav." Txhim kho qhov tsis ncaj ncees lawm tuaj yeem ua rau tsis ua haujlwm, dej rauj, lossis lub valve tsis ua haujlwm tag nrho.

Cov hom tseem ceeb ntawm PVC kos li qub yog viav vias kos, pob kos, thiab kos lub caij nplooj ntoos hlav. Txhua tus siv ib qho kev sib txawv passive mechanism kom tsis txhob thim rov qab thiab haum rau cov yeeb nkab sib txawv thiab cov dej ntws.

Lub check valve yog koj lub kaw lus tus neeg saib xyuas ntsiag to, ua haujlwm tsis muaj tes lossis lub zog sab nraud. Tab sis tsis yog txhua tus neeg saib xyuas ua haujlwm ib yam nkaus. Xaiv qhov zoo yog qhov tseem ceeb rau kev tiv thaiv lub twj tso kua mis thiab kev ncaj ncees. Qhov no yog qhov nthuav dav uas kuv ib txwm hais txog nrog Budi, vim nws cuam tshuam ncaj qha rau kev ntseeg tau ntev ntawm nws cov neeg siv khoom 'kev teeb tsa.

PVC Viav Check Valve

Qhov no yog hom yooj yim tshaj plaws. Nws nta ib lub pob khawm (los yog disc) uas viav vias qhib nrog dej ntws. Thaum cov ntws nres los yog thim rov qab, lub ntiajteb txawj nqus thiab rov qab-siab viav vias lub flap kaw tawm tsam nws lub rooj. Lawv ua haujlwm zoo tshaj plaws hauv cov kav dej kab rov tav lossis hauv cov kav dej ntsug nrog kev nce siab.

PVC Pob Check Valve

Nov yog peb qhov tshwj xeeb ntawm Pntek. Ib lub npas kheej kheej zaum hauv lub chamber. Forward flow thawb lub pob tawm ntawm txoj kev ntws. Thaum ntws rov qab, nws thawb lub pob rov qab rau hauv lub rooj zaum, tsim kom muaj lub foob kaw ntom nti. Lawv muaj kev ntseeg siab heev, tuaj yeem ntsia tau ntsug lossis kab rov tav, thiab tsis muaj hinges lossis springs hnav.

PVC Caij nplooj ntoos hlav Check Valve

Hom no siv lub caij nplooj ntoos hlav los pab kaw lub valve sai dua thaum ntws nres. Qhov kev kaw nrawm nrawm no yog qhov zoo heev rau kev tiv thaiv dej rauj-qhov kev puas tsuaj los ntawm kev cuam tshuam los ntawm kev nres tam sim ntawd. Lawv tuaj yeem ntsia tau rau hauv txhua qhov kev taw qhia.

Xaus

Xaiv qhov zoo PVC valve txhais tau hais tias nkag siab txog nws hom - pob rau kev tswj, kos rau rov qab - thiab cov khoom yas nws tus kheej. Qhov kev paub no ua kom ntseeg tau qhov system, tiv thaiv kev ua tsis tiav, thiab ua kom cov neeg siv khoom ntseeg siab.