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Nrog rau kev siv dav ntawm PPR kav thiab fittings hauv kev lag luam kho kom zoo nkauj hauv tsev, kom paub qhov txawv ntawm qhov zoo thiab qhov tsis zoo ntawm cov kav dej PPR yeej ib txwm muaj kev txhawj xeeb ntawm cov neeg siv khoom thiab cov neeg siv khoom. Txhawm rau kom ntseeg tau cov cai thiab kev txaus siab ntawm cov neeg siv khoom thiab pab cov neeg siv khoom ua ntej txheeb xyuas qhov tseeb thiab tsis tseeb PPR kav dej los ntawm qhov pom thiab hnov. Tom ntej no, PPR yeeb nkab manufacturers yuav qhia qhov zoo ntawm PPR kav thiab fittings thiab yuav ua li cas kom paub qhov txawv qhov zoo thiab qhov tsis zoo.
Dab tsi yog qhov zoo ntawm PPR yeeb nkab fittings
Kev tu cev zoo.
Nws yog tsim los ntawm alkene thiab auxiliary khoom nyob rau hauv dej, thiab nws corrosion kuj tsis zoo. Nws tsuas yog tsim los ntawm alkene thiab cov khoom pabcuam hauv dej, uas tsis tuaj yeem ua tau raws li tus qauv corrosion ntawm tag nrho cov ntaub ntawv raw.
Cov kav dej me me tsis kam.
Sab hauv phab ntsa ntawm cov yeeb nkab ncaj yog du thiab yuav tsis scale. Qhov kev sib txhuam tsis sib haum ntawm cov hlau lead yog me dua li ntawm lub thawv yeeb nkab, qhov chaw hla ntu tseem me me thaum cov yeeb nkab fittings txuas nrog, thiab cov coefficient hauv cheeb tsam kuj tsawg dua li ntawm cov yeeb nkab hlau.
Cov khib nyiab ntawm cov kav dej thiab cov yeeb nkab fittings tuaj yeem rov ua dua.
Tom qab ntxuav thiab crushing, cov khib nyiab tuaj yeem siv ncaj qha los tsim cov kav dej thiab cov yeeb nkab fittings; Tsis muaj kuab paug rau ib puag ncig thaum lub sij hawm tsim khoom thiab kev tsim kho Nws belongs rau ntug xim tsev cov ntaub ntawv.
Kev txuag hluav taws xob thiab txuag hluav taws xob.
Lub thermal conductivity ntawm PPR yeeb nkab khoom yog 0.21 w / (mk), uas tsuas yog 1 / 200 ntawm cov yeeb nkab steel. Feem ntau, thaum thermal rwb thaiv tsev yuav tsum tau rau cov kav dej kub, cov nyhuv ntawm kev tiv thaiv overflow thiab txuag hluav taws xob yog pom tseeb; Lub zog nthuav dav tsim tawm thaum Ju degree hloov me me, uas yog tsim rau faus ncaj qha thiab zais tso rau hauv phab ntsa thiab hauv pem teb txheej txheej.
Kev ua haujlwm kub zoo thiab kev ua haujlwm ntev.
PPR yeeb nkab yog qib siab, thiab kev ua haujlwm kub tuaj yeem ncav cuag 95 degree. Nyob rau hauv lub siab ntawm 1.0MPa, qhov kub ntawm kev pab mus sij hawm ntev yog 70 degree Raws li qhov ntsuas kub ntawm cov dej kub. Ua haujlwm siab PN1 Nyob rau hauv cov xwm txheej ntawm 0mpa, lub neej kev pabcuam tuaj yeem ncav cuag ntau tshaj 50 xyoo; nyob rau hauv ib txwm kub, lub neej kev pab cuam yuav ncav cuag ntau tshaj 100 xyoo.
Yooj yim installation thiab txhim khu kev qha kev twb kev txuas.
Cov txheej txheem ntau lawm yog qhov yooj yim, cov cuab yeej siv peev me me, thiab qhov zoo yog lub teeb. Qhov hnyav tsuas yog 1/9 ntawm cov yeeb nkab steel thiab 1/10 ntawm cov yeeb nkab yeeb nkab, uas txo qhov kev siv ntawm cov neeg ua haujlwm; Raws li cov khoom siv yeeb nkab tau ua tiav thiab tsim nrog peb hom khoom siv raw. Nws muaj kev ua haujlwm kub kub zoo, yooj yim thiab txhim khu kev qha installation, thiab lub zog ntawm qhov sib txuas yog ntau dua li ntawm cov yeeb nkab ntoo lub cev.
Paub qhov txawv qhov zoo thiab qhov tsis zoo ntawm PPR kav thiab fittings
Kos npe: kos cov cim cov ntsiab lus ntawm cov kav dej, feem ntau suav nrog PPR yeeb nkab chaw tsim khoom lub npe (kev lag luam), cov khoom npe, hom, specification thiab loj, hnub tsim khoom, batch tooj, ntawv pov thawj zoo, thiab lwm yam;
Phab ntsa thickness: saib seb puas yog nyob rau hauv nruj raws li tus qauv GB / T 18742 2-2002, ntsuas tus qauv nrog caliper;
Xim: zoo PPR raj lub zos zoo li milky dawb (tsis yog tag nrho cov dawb), qhov saum npoo yog du (tsis du), lub siab yog mos, thiab tsis muaj impurities;
Lub teeb xa hluav taws xob: cov kav dej PPR zoo yog opaque kiag li, thaum pseudo PPR kav yog me ntsis lossis pob tshab;
Suab: lub suab tsaws ntawm cov kav dej zoo yog npub, thiab lub suab tsaws ntawm cov kav dej tsis zoo yog nkig.
PPR yeeb nkab tiag tiag yuav tsum ua raws li tus qauv ISO / DIS 15874.2-1999 cov yeeb nkab yas rau dej txias thiab dej kub - PP Part II yeeb nkab. Kev ua tau zoo ntawm cov kav dej cuav thiab tsis zoo PPR tsis tuaj yeem hla cov qauv saum toj no. Nws yog tsim nyog sau cia tias lub neej kev pab cuam ntawm cov kav dej tsis zoo tsuas yog 1-5 xyoo, thaum lub neej kev pab cuam ntawm cov kav dej zoo PPR thiab fittings yog ntau tshaj 50 xyoo.
Hu rau
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