Lub ntsiab lus tseem ceeb ntawm txhua qhov kev sib koom tes engineering yog cov yeeb nkab. Niaj hnub no, cov yeeb nkab hlau-yas yog nrov heev. Cov yam ntxwv tshwj xeeb tso cai rau siv cov khoom siv no ob qho tib si hauv lub neej txhua hnub thiab hauv kev tsim khoom. Hauv tsev neeg, cov khoom no yog siv los tso cua sov hauv qab, lub tsev cua sov thiab kav dej.
Dab tsi yog cov yeeb nkab hlau-plastic
Cov yeeb nkab hlau-yas muaj cov txheej txheem txhuas, nrog rau txheej tuab ntawm polyethylene txuas rau nws los ntawm sab hauv thiab sab nraud. Cov qauv no tso cai rau koj kom tau txais txiaj ntsig zoo siv qhov zoo ntawm ob yam khoom sib txawv thiab ua kom tsis zoo rau qhov tsis zoo.
Cov txheej PE tiv thaiv cov txhuas los ntawm kev xeb thiab txhim kho rau sab hauv, thaum cov txhuas txo qhov nthuav dav ntawm PE thiab UV raug, thiab ntxiv rigidity rau cov khoom. Kev pabcuam lub neej thiab kev ntseeg siab ntawm cov kav dej yog nyob ntawm qhov zoo ntawm cov nplaum uas tuav txhua txheej ua ke. Glue Excludedelamination thaum lub sij hawm installation thiab kub hloov.
Yuav ua li cas xaiv qhov zoo, koj yuav tsum paub tias cov kav hlau yas yog dab tsi thiab siv lawv li cas.
- Rau cov kav dej. Hauv qhov no, koj tuaj yeem siv txhua yam khoom, vim tsis muaj qhov sib txawv ntawm qhov kub thiab txias.
- Rau qhov cua sov thiab dej kub. Ntawm no nws yog ib qho tsim nyog yuav tau xyuam xim rau cov cim, nws yuav tsum muaj cov npe xws li PE-RT-AL-PE-RT lossis Pex-AL.
Hlau-yas yeeb nkab. Specifications
- Cov neeg tsim khoom tsuas yog tsim cov kav dej nrog txoj kab uas hla ntawm 16 hli, 20 hli, 26 hli, 32 hli thiab 40 hli. Tab sis yog tias koj xav tau, koj tuaj yeem nrhiav cov khoom hauv 50 hli thiab 63 hli.
- Hlau-yas yeeb nkab 16 mm ntev, 1 linear meter hnyav kwv yees li 100 g.
- Ua haujlwm siab ntawm cov khoom siv - 10 atmospheres.
- Ua haujlwm kub siab tshaj plaws ntawm cov khoom - 95 ° C. Tso cai rau lub sijhawm luv luv - 110 ° C.
- Cov kav dej muaj nyob hauv 2 hli, 2.5 hli thiab 3 hli phab ntsa thicknesses.
- Kev tuav lub vojvoog yog 80-550mm, nrog cov yeeb nkab bender 45-180mm.
Qhov tsawg kawg nkaus txoj kab uas hla ntawm cov kav hlau-yas yog tso cai tsuas yog thaum lub siab ib txwm khaws cia hauv nruab nrab. Thaum tsim cov xaim dav dav hauv lub tsev ntiag tug, nws yog qhov zoo dua los siv cov khoom siv nrog lub caliber ntawm 32 hli thiab 40 hli.
Qhov tsis zoo uas cov kav dej yas muaj yog tus nqi. Nws yog siab heev, tshwj xeeb tshaj yog rau txawv teb chaws manufacturers. Txawm li cas los xij, lawv tus nqi rau cov nyiajzoo dua li yas thiab hlau.
Qhov zoo ntawm cov kav dej yas
Hlau-yas yeeb nkab, cov yam ntxwv ntawm cov khoom uas, txawm tias muaj koob meej ntawm cov khoom, tsis paub rau txhua tus, muaj qee qhov kev sib tw zoo:
- durability (raj lub neej tuaj yeem mus txog 50 xyoo);
- tsis muaj tshuaj lom;
- resistance rau ib puag ncig nruj;
- lub teeb yuag, uas tso cai rau kev teeb tsa ntawm cov tshuab engineering hauv lub sijhawm luv luv, thaum tsis muaj qhov tsis tsim nyog ntawm lub hauv paus;
- kho tau yooj yim;
- kev yooj yim hauv kev xa khoom - cov kav dej yog muag hauv cov 'meter' loj hauv bays, uas txo cov khib nyiab thaum ntsuas thiab txiav;
- tsis muaj kev cuam tshuam;
- zoo plasticity, ua tsaug uas cov kav dej tsis tawg thaum dej khov hauv lawv;
- tsis xav tau vuam, npog thiab pleev xim;
- siab lub suab nqus, uas ua rau nws tsis tuaj yeem siv rwb thaiv tsev ntxiv;
- no linear stretching.
Txhim kho cov kav dej yas
txhawm rau ua kom zoo, koj yuav tsum paub yuav ua li cas txuas cov kav hlau-yas. Kev teeb tsa suav nrog kev siv cov fittings tshwj xeeb, uas tau muab faib ua ob hom:
- Nias fittings, los yog crimp fittings.
- Compression los yog threaded.
Kev txhim kho cov kav hlau-yas siv cov xovxwm fittings
Sivxovxwm fittings tso cai rau koj kom tau txais ib qho kev tsim ib qho thiab txhim khu kev qha, uas ua rau nws muaj peev xwm tsis txhob xau. Yog li ntawd, nrog rau cov xaim zais, cov kws tshaj lij qhia ua haujlwm nrog hom kev sib txuas no.
Txhawm rau txhim kho compression haum, koj yuav tsum tau ntim cov xovxwm. Cov cuab yeej tshwj xeeb no tuaj yeem yog phau ntawv lossis hydraulic. Ua ntej koj pib, koj yuav tsum nkag siab yuav ua li cas txuas cov kav hlau-yas siv xovxwm fittings.
- Pib nrog, cov khoom raug txiav nrog txiab tshwj xeeb.
- Qhov kawg ntawm cov khoom yog ua tiav nrog lub ntsuas ntsuas - ib qho tshwj xeeb reamer uas ib txhij kho qhov txiav thiab tshem tawm cov chamfer sab hauv.
- Cov ntug ntawm cov yeeb nkab yog machined nrog beveler.
- Lub tes tsho raug tshem tawm ntawm qhov haum, tom qab ntawd cov nplhaib sib khi tau ua tib zoo tshuaj xyuas. Lawv yuav tsum tsis txhob puas los yog puas. Tom qab kuaj xyuas, lub tes tsho tau teeb tsa rau hauv qhov chaw.
- Txoj kev sib txuas yog muab tso rau hauv cov yeeb nkab kom deb li deb nws yuav mus.
- Nias tongs raug ntsia rau ntawm lub tes tsho, tom qab ntawd cov cuab yeej tuav tau txuas nrog.
Kev rov ua dua ntawm tib lub tes tsho yog txwv tsis pub, yog li, yog tias qhov haum tau teeb tsa tsis zoo, nws yuav tsum tau hloov.
Xovxwm fittings yog tshwj xeeb tshaj yog yooj yim thaum sib txawv diameters ntawm cov hlau-yas kav uas yuav tsum tau txuas rau ib leeg. Cov khoom fastening nrog tib lub caliber yog hu ua ncaj. Thiab cov uas txuas cov hlais ntawm cov kab sib txawv yog qhov hloov pauv.
Txhim kho cov kav hlau-yas nrog compression fittings
Txoj kev sib txuas no tshwj xeeb tshaj yog rau kev sib dhos ntawm tus kheej, vim nws tsis tas yuav siv cov cuab yeej tshwj xeeb los siv. Kev zawm yuav ua tau nrog ob lub wrenches zoo tib yam. Kev ua haujlwm ua ntu zus yog qhia raws li cov npe hauv qab no:
- Cov yeeb nkab, ib yam li cov xovxwm fittings, yuav tsum tau npaj ua ntej.
- Ib tug txiv ntoo pib muab tso rau ntawm qhov txiav, thiab tom qab ntawd ferrule.
- Qhov kev sib txuas haum yog muab tso rau hauv cov khoom.
- Lub ferrule mus rau qhov haum, ua raws li cov txiv ntoo uas kaw lub ferrule.
- Siv ob lub wrenches los zawm lub txiv ntoo.
Tsis muaj kev sib dhos ua tau yam tsis muaj fittings, uas cov kav hlau-yas koom nrog. Tus nqi ntawm cov xovxwm yog me ntsis siab dua, ntxiv rau, xws li kev teeb tsa yog suav tias yog ib zaug, vim qhov kev sib txuas tsis sib cais. Thiab qhov no yog tej zaum lub ntsiab drawback ntawm xws fittings, txawm li cas los xij, lawv ua lawv txoj haujlwm ncaj qha zoo kawg nkaus.
Hlau-yas yeeb nkab, cov yam ntxwv ntawm cov khoom uas ntxim nyiam heev, tau dhau los ua neeg nyiam. Niaj hnub no, cov khoom lag luam npog ntau dua 25% ntawm tag nrho cov lag luam ntawm cov khoom siv hlau-polymer, uas koom nrog ntau yam kev tsim kho thiab kev teeb tsa ua haujlwm.
