Koj yuav tsum tau yuav cov PVC li qub rau ib qho project, tab sis cov catalog ntau dhau lawm. Pob, check, npauj npaim, diaphragm—xaiv qhov tsis raug txhais tau tias lub kaw lus uas xau, ua tsis tiav, lossis ua haujlwm tsis zoo.

Cov hom PVC tseem ceeb tau muab faib ua pawg raws li lawv txoj haujlwm: lub pob valve rau kev tswj hwm qhib / kaw, lub valve xyuas kom tiv thaiv kev ntws rov qab, lub valve npauj npaim rau kev tswj cov kav dej loj, thiab lub valve diaphragm rau kev tswj cov kua dej corrosive lossis cov kua dej huv.

Qhov no yog ib lo lus nug uas kuv feem ntau tham nrog kuv cov neeg koom tes, suav nrog Budi, tus thawj coj kev yuav khoom saum toj kawg nkaus 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. Acov kav dejtsuas yog muaj zog li nws cov khoom tsis muaj zog tshaj plaws, thiab xaiv qhov yoghom valveyog thawj kauj ruam mus rau kev tsim kom muaj lub kaw lus txhim khu kev qha thiab kav ntev. Kev nkag siab txog cov kev sib txawv no tsis yog tsuas yog kev paub txog kev siv tshuab xwb; nws yog lub hauv paus ntawm ib qho project ua tiav.

Puas muaj ntau hom PCV valves sib txawv?

Koj hnov ​​lo lus "PVC valve" thiab tej zaum yuav xav tias nws yog ib yam khoom siv ib txwm muaj. Qhov kev xav no tuaj yeem ua rau koj teeb tsa lub valve uas tsis tuaj yeem tswj tau qhov siab lossis ua haujlwm koj xav tau.

Yog, muaj ntau hom PVC valves, txhua hom muaj ib lub mechanism sab hauv uas tsim los rau ib txoj haujlwm tshwj xeeb. Feem ntau yog siv rau kev pib/nres dej ntws (ball valves) thiab tiv thaiv dej ntws rov qab (check valves).

Xav tias txhua lub qhov dej PVC zoo ib yam yog qhov yuam kev ntau. Qhov tseeb, qhov "PVC" tsuas yog piav qhia txog cov khoom siv uas lub qhov dej ua los ntawm - yas ruaj khov, tiv taus xeb. Qhov "valve" piav qhia txog nws txoj haujlwm. Txhawm rau pab Budi thiab nws pab neeg coj lawv cov neeg siv khoom, peb faib lawv los ntawm lawv txoj haujlwm tseem ceeb. Qhov kev faib tawm yooj yim no pab txhua tus xaiv cov khoom zoo nrog kev ntseeg siab.

Nov yog cov ntsiab lus yooj yim ntawm cov hom feem ntau uas koj yuav ntsib hauv kev tswj dej:

Plaub hom PVC yog dab tsi?

Koj pom cov ntawv lo sib txawv xws li PVC-U thiab C-PVC thiab xav tsis thoob tias lawv puas tseem ceeb. Siv lub qhov dej kub ib txwm muaj hauv cov kav dej kub vim koj tsis paub tias qhov txawv tuaj yeem ua rau muaj kev puas tsuaj loj heev.

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

Qhov no yog ib lo lus nug zoo heev vim nws nkag mus rau lub ntsiab lus ntawm cov khoom zoo thiab kev nyab xeeb ntawm daim ntawv thov. Kev sib xyaw cov hom valve nrog cov khoom siv yooj yim heev. Ntawm Pntek, peb ntseeg tias tus khub uas tau kawm tiav yog tus khub ua tiav, yog li kev piav qhia qhov no yog qhov tseem ceeb. Cov khoom siv uas koj lub valve ua los ntawm qhia nws qhov kub thiab txias, qhov ntsuas siab, thiab kev tiv taus tshuaj lom neeg.

PVC-U (Polyvinyl Chloride Tsis Muaj Yas)

Qhov no yog hom PVC uas siv ntau tshaj plaws rau cov kav dej, cov khoom sib txuas, thiab cov li qub hauv North America, Europe, thiab Asia. Nws ruaj khov, pheej yig, thiab tiv taus ntau yam tshuaj lom neeg. Nws yog tus qauv rau kev siv dej txias. Feem ntau ntawm peb cov Pntek pob li qub thiab cov li qub kuaj uas Budi xaj yog ua los ntawm cov qib siab PVC-U.

C-PVC (Chlorinated Polyvinyl Chloride)

C-PVC dhau los ntawm cov txheej txheem chlorination ntxiv. Qhov kev hloov pauv yooj yim no ua rau nws tiv taus kub ntau dua. Txawm hais tias PVC-U tsuas yog siv tau txog li 60 ° C (140 ° F), C-PVC tuaj yeem tswj tau qhov kub txog li 93 ° C (200 ° F). Koj yuav tsum siv C-PVC li qub rau cov kav 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 siab tshwj xeeb, tab sis nws zoo kom paub tias lawv muaj. Lawv tau tsim los rau qhov ntsuas siab dua thiab muaj zog cuam tshuam zoo dua.

Muaj rau hom valve tseem ceeb dab tsi?

Koj tab tom tsim ib lub kaw lus nyuaj thiab xav tau ntau tshaj li ib lub qhov dej qhib/kaw yooj yim xwb. Pom cov npe zoo li "Globe" lossis "Gate" tuaj yeem ua rau koj tsis meej pem yog tias koj feem ntau ua haujlwm nrog PVC pob valves.

Rau tsev neeg tseem ceeb ntawm cov li qub yog Ball, Gate, Globe, Check, Butterfly, thiab Diaphragm li qub. Feem ntau muaj nyob rau hauv PVC los tswj cov ntawv thov uas cov hlau li qub yuav xeb lossis kim dhau.

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

Rau kev tswj dej dav dav,lub pob valve, xyuas cov li qub, thiabnpauj npaim li qubyog cov hom PVC tseem ceeb tshaj plaws uas yuav tsum paub.

Cov hom PVC check valves sib txawv yog dab tsi?

Koj xav tau lub qhov dej kom tiv thaiv kev ntws rov qab, tab sis koj pom cov kev xaiv xws li "swing," "ball," thiab "spring." Kev teeb tsa qhov tsis raug tuaj yeem ua rau tsis ua haujlwm, dej ntaus, lossis lub qhov dej tsis ua haujlwm hlo li.

Cov hom PVC check valves tseem ceeb yog swing check, ball check, thiab spring check. Txhua lub siv lub passive mechanism sib txawv los tiv thaiv cov dej ntws rov qab thiab haum rau cov yeeb nkab sib txawv thiab cov xwm txheej ntws.

Lub qhov ntsuas yog koj lub kaw lus tus neeg saib xyuas ntsiag to, ua haujlwm tau yam tsis muaj tes tuav lossis lub zog sab nraud. Tab sis tsis yog txhua tus neeg saib xyuas ua haujlwm tib yam. Kev xaiv qhov yog yog qhov tseem ceeb rau kev tiv thaiv twj tso kua mis thiab kev ua haujlwm ntawm lub kaw lus. Qhov no yog ib qho ntsiab lus uas kuv ib txwm hais txog nrog Budi, vim nws cuam tshuam ncaj qha rau kev ntseeg siab mus sij hawm ntev ntawm nws cov neeg siv khoom cov kev teeb tsa.

PVC Viav Vias Kos Valve

Qhov no yog hom yooj yim tshaj plaws. Nws muaj lub hau (lossis lub disc) uas tig tau uas tig qhib raws li dej ntws. Thaum dej ntws nres lossis rov qab, lub ntiajteb txawj nqus thiab lub zog rov qab tig lub hau kaw rau ntawm nws lub rooj zaum. Lawv ua haujlwm zoo tshaj plaws hauv cov kav dej kab rov tav lossis hauv cov kav dej ntsug uas muaj dej ntws mus rau sab saud.

PVC Pob Tshawb Xyuas Valve

Qhov no yog peb qhov tshwj xeeb ntawm Pntek. Lub pob kheej kheej nyob hauv ib lub chamber. Cov dej ntws mus tom ntej thawb lub pob tawm ntawm txoj kev ntws. Thaum cov dej ntws rov qab, nws thawb lub pob rov qab mus rau hauv lub rooj zaum, tsim kom muaj lub foob kaw. Lawv ntseeg tau heev, tuaj yeem ntsia tau ntsug lossis kab rov tav, thiab tsis muaj lub pob khawm lossis lub caij nplooj ntoos hlav kom puas tsuaj.

PVC Caij Nplooj Ntoos Hlav Kos Valve

Hom no siv lub caij nplooj ntoos hlav los pab kaw lub valve sai dua thaum cov dej ntws tsis ntws lawm. Qhov kev kaw sai no zoo heev rau kev tiv thaiv cov dej ntaus - qhov kev co uas ua rau puas tsuaj los ntawm kev nres dej tam sim ntawd. Lawv tuaj yeem ntsia tau rau txhua qhov kev taw qhia.

Xaus lus

Kev xaiv lub valve PVC uas yog qhov zoo txhais tau tias nkag siab txog nws hom - lub pob rau kev tswj, xyuas seb puas muaj dej ntws rov qab - thiab cov khoom yas nws tus kheej. Kev paub no ua kom ntseeg tau tias lub kaw lus muaj kev ntseeg siab, tiv thaiv kev ua tsis tiav, thiab tsim kev ntseeg siab rau cov neeg siv khoom.