Koj tab tom txhim kho cov kab dej tshiab thiab tuav lub PVC valve. Tab sis yog tias koj tsis paub nws qhov kev txwv siab, koj yuav muaj kev pheej hmoo rau kev puas tsuaj loj, dej nyab loj, thiab cov nqi poob qis.
Tus txheej txheem Schedule 40 PVC pob valve feem ntau yog ntsuas los tswj qhov siab tshaj plaws ntawm 150 PSI (Pounds per Square Inch) ntawm 73 ° F (23 ° C). Qhov kev ntsuas siab no txo qis dua thaum dej kub nce, yog li nws tseem ceeb heev los xyuas cov chaw tsim khoom tshwj xeeb.
Tus lej ntawd, 150 PSI, yog cov lus teb yooj yim. Tab sis cov lus teb tiag tiag yog qhov nyuaj dua, thiab kev nkag siab nws yog qhov tseem ceeb rau kev tsim kom muaj kev nyab xeeb, txhim khu kev qha. Kuv feem ntau tham txog qhov no nrog Budi, tus thawj tswj kev yuav khoom hauv Indonesia. Nws cob qhia nws pab neeg kom nug cov neeg siv khoom tsis yog "koj xav tau dabtsi?" tab sis kuj "dab tsi yog qhov kub thiab txias?" thiab "Yuav ua li cas koj nres qhov ntws?" Lub twj tso kua mis tuaj yeem tsim qhov siab tshaj qhov siab tshaj qhov nruab nrab ntawm qhov system. Lub valve tsuas yog ib feem ntawm tag nrho cov system. Paub tias nws tuaj yeem tswj tau ntau npaum li cas tsis yog nyeem tus lej xwb; nws yog hais txog kev nkag siab tias koj lub kaw lus yuav coj li cas hauv lub ntiaj teb tiag.
Lub siab ntsuas ntawm PVC valve yog dab tsi?
Koj pom "150 PSI" luam tawm ntawm lub valve, tab sis qhov ntawd txhais li cas tiag? Kev siv nws hauv cov xwm txheej tsis raug tuaj yeem ua rau nws ua tsis tiav, txawm tias lub siab zoo li qis.
Kev ntsuas siab ntawm PVC valve, feem ntau yog 150 PSI rau Teem sijhawm 40, yog nws qhov siab tshaj plaws ua haujlwm siab ntawm chav tsev kub. Raws li qhov kub nce siab, PVC softens thiab nws lub peev xwm tuav tau poob qis heev.
Xav txog qhov ntsuas ntsuas raws li nws lub zog hauv qhov xwm txheej zoo meej. Ntawm chav tsev kub ntawm 73 ° F (23 ° C), tus qauv dawb PVC valve muaj zog thiab nruj. Tab sisPVC yog thermoplastic, uas txhais tau tias nws tau softer nrog cua sov. Qhov no yog lub tswv yim tseem ceeb tshaj plaws kom nkag siab: koj yuav tsum "derate" lub siab rau qhov kub siab dua. Piv txwv li, ntawm 100 ° F (38 ° C), 150 PSI valve tsuas yog muaj kev nyab xeeb txog 110 PSI. Thaum lub sijhawm koj mus txog 140 ° F (60 ° C), nws qhov ntsuas siab tshaj plaws tau poob mus rau ib puag ncig 30 PSI. Qhov no yog vim li cas tus qauv PVC tsuas yog rau cov kab dej txias xwb. Rau siab dua los yog kub dua me ntsis, koj yuav saibTeem caij 80 PVC(feem ntau yog tsaus grey), uas muaj cov phab ntsa tuab dua thiab qhov siab dua qhov kev ntsuas pib.
PVC Siab ntsuas vs
| Dej kub | Max Siab (rau 150 PSI Valve) | Lub zog khaws cia |
|---|---|---|
| 73 ° F (23 ° C) | 150 PSI | 100% |
| 100 ° F (38 ° C) | ~ 110 PSI | ~ 73% |
| 120 ° F (49 ° C) | ~75 PSI | ~ 50% |
| 140 ° F (60 ° C) | ~ 33 PSI | ~ 22% |
Lub siab txwv rau lub pob valve yog dab tsi?
Koj paub tias koj lub kaw lus qhov siab zoo li qub tau nyab xeeb hauv qab qhov txwv. Tab sis kev kaw lub valve tam sim ntawd tuaj yeem tsim kom muaj lub siab dav uas cuam tshuam dhau qhov txwv, ua rau muaj kev tawg sai sai.
Lub xeev siab txwv yog rau static, tsis-shock siab. Qhov kev txwv no tsis suav rau dynamic rog zoo lidej rauj, lub siab nrawm nrawm uas tuaj yeem tawg tau yooj yim lub valve ntsuas rau ntau qhov siab dua.
Dej rauj yog qhov ntsiag to killer ntawm cov kav dej. Xav txog ib lub yeeb nkab ntev uas muaj dej txav ceev ceev. Thaum koj slam lub valve kaw, tag nrho cov dej txav tau nres tam sim ntawd. Lub zog ua rau muaj kev poob siab loj heev uas rov qab los ntawm cov yeeb nkab. Qhov kev kub siab no tuaj yeem yog 5 mus rau 10 npaug ntawm lub zog ib txwm muaj. Lub kaw lus khiav ntawm 60 PSI tuaj yeem ua rau muaj kev nce siab ntawm 600 PSI. Tsis muaj tus qauv PVC pob valve tuaj yeem tiv taus qhov ntawd. Kuv ib txwm hais rau Budi kom nco ntsoov nws cov neeg cog lus ntawm qhov no. Thaum lub valve tsis ua haujlwm, nws yooj yim los liam cov khoom. Tab sis feem ntau, qhov teeb meem yog qhov tsim qauv uas tsis suav nrog rauj dej. Qhov kev tiv thaiv zoo tshaj plaws yog kaw cov valve maj mam. Txawm hais tias nrog lub quarter-tig pob valve, kev khiav hauj lwm tus kov tau zoo dua li ob lossis ob lub es tsis txhob snapping nws kaw ua qhov sib txawv loj.
PVC tuaj yeem tiv taus siab npaum li cas?
Koj tau xaiv txoj cai valve, tab sis dab tsi txog cov yeeb nkab? Koj lub cev tsuas yog muaj zog raws li nws qhov kev sib txuas tsis muaj zog, thiab cov yeeb nkab tsis ua haujlwm tsuas yog qhov tsis zoo ntawm lub valve.
Tus nqi ntawm PVC tuaj yeem tiv taus yog nyob ntawm nws "s teem sijhawm" lossis phab ntsa tuab. Standard Schedule 40 PVC yeeb nkab muaj qhov ntsuas siab qis dua li cov tuab-walled, ntau lub sijhawm ua haujlwm 80 yeeb nkab.
Nws yog ib qho yuam kev ntau los tsom rau ntawm qhov ntsuas qhov ntsuas. Koj yuav tsum phim koj cov khoom. Ib qho 2-nti Teem caij 40 yeeb nkab, cov yeeb nkab dawb uas koj pom nyob txhua qhov chaw, feem ntau yog nyob ib ncig ntawm 140 PSI. Lub 2-nti Teem sijhawm 80 yeeb nkab, uas muaj phab ntsa tuab dua thiab feem ntau yog grey tsaus, raug ntsuas rau ntau dua 200 PSI. Koj tsis tuaj yeem ua rau koj lub cev muaj peev xwm nce siab tsuas yog siv lub valve muaj zog dua. Yog tias koj nruab Schedule 80 valve ( ntsuas rau 240 PSI) ntawm Teem caij 40 yeeb nkab ( ntsuas rau 140 PSI), koj lub cev qhov siab tshaj plaws kev nyab xeeb tseem tsuas yog 140 PSI. Cov yeeb nkab ua qhov txuas tsis muaj zog. Rau txhua qhov system, koj yuav tsum txheeb xyuas qhov kev ntsuas siab ntawm txhua yam khoom siv - cov kav dej, fittings, thiab li qub - thiab tsim koj lub cev nyob ib ncig ntawm qhov qis tshaj plaws.
Pipe Schedule Sib Piv (Piv txwv: 2-nti PVC)
| Feature | Teem caij 40 PVC | Teem caij 80 PVC |
|---|---|---|
| Xim | Feem ntau Dawb | Feem ntau Tsaus Grey |
| Phab ntsa Thickness | Txuj | Thicker |
| Kev ntsuas siab | ~ 140 PSI | ~ 200 PSI |
| Siv dav | General Plumbing, Irrigation | Industrial, Siab Siab |
Puas yog PVC pob li qub puas zoo?
Koj saib ntawm lub teeb yuag valve thiab xav tias nws zoo li pheej yig. Koj puas tuaj yeem tso siab rau qhov pheej yig no los ua ib qho kev txhim khu kev qha hauv koj qhov dej tseem ceeb?
Yog, high-qualityPVC pob li qubzoo heev rau lawv lub hom phiaj. Lawv cov nqi tsis yog nyob rau hauv brute lub zog, tab sis nyob rau hauv lawv tag nrho kev tiv thaiv corrosion, uas ua rau lawv txhim khu kev qha ntau tshaj hlau nyob rau hauv ntau daim ntawv thov.
Kev xaav ntawm "pheej yig" los ntawm kev sib piv PVC rau hlau. Tab sis qhov no nco lub ntsiab lus. Hauv ntau daim ntawv thov dej, tshwj xeeb tshaj yog hauv kev ua liaj ua teb, aquaculture, lossis pas dej ua ke, kev xeb yog thawj qhov ua rau tsis ua haujlwm. Lub tooj dag lossis hlau valve yuav xeb thiab txeeb lub sijhawm. Ib qho zoo PVC valve, ua los ntawm 100% nkauj xwb cob nrog du PTFE rooj thiab redundant O-rings, yuav tsis. Nws yuav ua haujlwm zoo rau ntau xyoo hauv ib puag ncig uas yuav rhuav tshem cov hlau. Budi yeej dhau cov neeg tsis ntseeg siab los ntawm kev rov hais dua cov lus nug. Lo lus nug tsis yog "plastics zoo txaus?" Lo lus nug yog "hlau puas tuaj yeem muaj sia nyob txoj haujlwm?" Rau kev tswj cov dej txias, tshwj xeeb tshaj yog nyob rau hauv cov tshuaj los yog ntsev, ib tug zoo-ua PVC valve tsis yog ib tug zoo xaiv; nws yog qhov ntse dua, txhim khu kev qha, thiab muaj txiaj ntsig zoo xaiv rau lub sijhawm ntev.
Xaus
PVC pob valve tuaj yeem ua 150 PSI ntawm chav tsev kub. Nws tus nqi tseeb yog nyob rau hauv kev tiv thaiv corrosion, tab sis ib txwm muaj nyob rau hauv qhov kub thiab txias rauj rau kev nyab xeeb, kav ntev.
Post lub sij hawm: Lub Xya hli ntuj-21-2025
