Dej kav: ntau yam thiab daim ntawv thov

Kom txog rau thaum nyuam qhuav, lub ntsiab kav, uas tau siv nyob rau hauv cov dej haus systems, twb dub hlau cov ntaub ntawv. Txawm tias nws khees cia siab rau, cov khoom muaj ib tug xov tooj ntawm drawbacks, lub ntsiab uas yog ib tug xeb. Vim corrosion nyob rau hlau kav nws thiaj li ua thiab sau xeb, uas yog tso rau lub puab phab ntsa ntawm tus ciav dej.

Yuav kom tshem tawm cov tsis zoo los yog suab tsis yooj yim sua. Yog hais tias kav dej muab zog siab vim xeb, ces lawv tsuas yuav hloov.

Niaj hnub no, txawm li cas los, cov kev siv ntawm tej khoom rau lub yav dhau los. Nyob rau hauv kev ua lag luam muaj cov ntaub ntawv tshiab yus siab cia siab rau thiab durability.

Thaum txhim kho cov dej kav dej uas siv ob peb hom. Thaum lub apparatus zog ntawm dej systems siv galvanized steel kav, tooj liab cov khoom, hlau, yas kav thiab polyethylene (crosslinked).

Tag nrho cov ntawm lawv muaj ob zoo thiab disadvantages.

Steel kav xa dej, coated nrog zinc tau kev zoo dua kuj mus corrosion. Txawm li cas los, kev sib txuas lus ntawm no hom ntawm cov khoom uas kim kim, tab sis kuj cov feem ntau txhim khu kev qha.

Dej kav hlau thiab yas muaj ib tug multilayered qauv uas muaj ib tug nyias txhuas puag coated sab hauv thiab crosslinked polyethylene. Lub sij hawm ntawm qhov kev pab los ntawm tej ntaub ntawv yog ib tug ib nrab-xyoo pua. Hlab yuav siv tau nyob rau hauv tej yam kev mob nyob qhov twg qhov kub thiab txias mas nws txawv dua cov kua los ntawm Rho tawm 40 mus ntxiv 90, thiab cov kev khiav hauj lwm siab nce mus txog 10 atmospheres. Qhov tseeb tso cai rau kev siv cov ntaub ntawv thaum hloov cov dej haus thiab cua sov kav.

Feem ntau cov high-zoo duab los tsim kev sib txuas lus yog tooj liab kav. Cov khoom uas yog suab tsis raug mus rau corrosion. Thaum pub ntxiv tshaj kav los ntawm vuam yog tshem tawm to tebchaw. Tag nrho cov qualities ua cov tooj liab dej kav tagnrho rau kev kho ntawm cov dej haus tshuab. Txawm li cas los, qhov no yog tsis pub tus nqi ntawm cov khoom.

Tej zaum vim hais tias ntawm no qhov zoo tshaj, ntau plumbers pom zoo kom siv ntawm cov kev hloov ntawm cov laus cov kav dej pvc kev sib txuas lus. Cov khoom uas yog tag nrho haum rau kev tsim kub thiab dej txias tshuab, thiab ntawm cov kev pab cuam lub neej ntawm 50 xyoo. Ntaub ntawv uas muaj peev xwm ntawm kev khiav hauj lwm ntawm kub cawv los ntawm Rho tawm 10 mus rau ntxiv rau 95 degrees. Tiabsis cov khoom yog ua los ntawm fittings uas yog mounted rau ib tug nplaum los yog Vuam siv diffusion. Cov yav tas kev xaiv yog ntau txhim khu kev qha kev sib txuas.

Dej kav ntawm crosslinked polyethylene - ib tug niaj hnub version ntawm ib tug yig hloov ntawm obsolete cov ntaub ntawv. Cov khoom muaj cog lus zoo heev rau siv. Lawv yog cov tsis ntshai kinks tsis tau hais tias ntawm yas, uas tsis yog-corrosive, muaj tsawg roughness nqi, tsis tshua muaj tshav kub tsis tau, tsis ua hluav taws xob. Pab raws li cov kav dej rau tsib caug xyoo.