Kav rau dej mov - los ntawm hlau kav mus yas, thiab vice versa

Kav rau dej mov - lub feem ntau exploited tsev nyob lub neej pab txhawb nqa system ntawm ib tug neeg. Siv nrog lub nyob deb yav tag los, steel los yog cam khwb cia hlau kav tsis resistant rau corrosion thiab yuav tsum tau nquag replacements. Kev siv ntawm polymers li cov ntaub ntawv uas rau cov kav dej, muaj ntau zog cov kev pab cuam lub neej ntawm cov kav dej 40.

Niaj hnub nimno polymer ntaub ntawv rau cov kav dej muab tej txiaj ntsim nrog exceptional kev ua tau zoo zog. Yuav khiav lag luam ntawm pressures mus txog 30 atmospheres, siab kub - mus txog rau 90 degrees, siv rau lwm washer, thiab racks nyiaj tso ncaj hnub ci tawg. Polyethylene kav thaum lub sij hawm khov tsis plam nws lub cev thiab kev kawm ntawv. Lub disadvantage ntawm polypropylene thiab polyethylene cov khoom yog tseem ceeb coefficient ntawm linear expansion. Advantage - tsawg tshav kub.

Yas kav - ib qho pheej yig, txhim khu kev qha thiab ceev heev installation khoom.

Yas hlab dej yog mounted nyob rau hauv lub txias, kub dej systems thiab lub cua sov. Thaum xaiv cov kav dej rau hloov los yog installation ntawm ib tug tshiab cov dej haus, nws yog tsim nyog los nrhiav tau tawm lawv cov kev kawm thiab cov tej yam kev mob nyob rau hauv uas lawv yuav ua hauj lwm. Yog hais tias tus mob khaub thuas dej koj cia li yuav tsum paub mas lub siab yeeb nkab (nyob rau hauv cov cua), rau cua sov kav yuav tsum tau paub dab tsi lub siab tshaj plaws kub tej yam kev mob lawv yuav ua hauj lwm rau ib tug ntev lub sij hawm. Txuas ntsiab yog li ntawd-hu ua "fittings". Inch yeeb nkab rau domestic dej mov yog noj rau 3/4 inch.

Yas kav rau cov dej haus mounted nyob rau hauv peb txoj kev sib txawv. PVC kav muaj kev cob cog txoj kev "khaub thuas vuam", spetsrastvor softens lub phab ntsa ntsiab yuav tsum tau kev cob cog rua, uas nyob rau cua txias, tsim ib tug muaj zog qauv. Tshwj xeeb soldering hlau rhuab nrog phab ntsa ntawm lub polypropylene hlab thiab fittings muaj kev cob cog, tom qab txias qauv npaj txhij mus ua hauj lwm. Yas thiab hlau kav yog kev cob cog rua CRIMP txoj kev, thaum cov yeeb nkab haum yog muab tso rau, thiab siv cov zoo cuab tam tau qhov yuav tsum tau ceev ntawm lub compound. Qhov kom zoo dua ntawm yas kav dej yog tau ntawm nws tus kheej-los ua ke, ntau tus txiv neej yuav tsum tau mus sau cov designer - yas kav dej.

Tooj kav dej - exploited rau centuries.

Tooj kav rau cov kav dej resistant yaig mas extremes ntawm kub ntawm - 200 mus rau 250 degrees Celsius, suab tsis muaj linear expansion suppress teeb meem microorganisms. Yuav siv tau nyob rau hauv kub siab systems, mus txog 50 atmospheres. High kub ua rau nws tau siv nyob rau hauv cov cua kub systems thiab kom paub tseeb tias cov kub thiab dej txias. Tus nqi ntawm cov ntaub ntawv thiab ua hauj lwm rau siab heev.

Nyob rau hauv qhov kev siv kev ua lag luam yog yas hlab uas tau raws li qhov uas yuav tsum tau rau lub lag luam nyob rau hauv tag nrho cov tej yam kev mob, los ntawm sab hauv tsev rau sab nraum zoov qhov chaw. Thaum xaiv cov kav dej rau dej haus, koj muaj peev xwm nyob rau cov neeg uas hais tias tau koj xav tau kev pab.