1, pp-r yeeb nkab, hlau hlau tsis tshua muaj zog, tsis muaj rigidity, yuav tsum muaj kev tiv thaiv nyob rau hauv kev thauj mus los, kev tsim kho, kom tsis txhob tsis tsim nyog sab nraud vim los ntawm kev puas tsuaj mechanical. Tom qab uas tsaus nti thov kom khij lub yeeb nkab txoj hauv kev, kom tsis txhob muaj lwm yam kev raug teeb meem yeeb nkab.
2, pp-r yeeb nkab 5 ℃ hauv qab no muaj tsawg tus brittleness kub, lub caij ntuj no tsim nyog yuav tsum tau ceev faj thiab ntse cov cuab yeej yuav tsum raug siv thaum txiav hlau txiav qeeb. Tsis tau ntsia cov yeeb nkab, hlab ntsha tawg, thaum tsim nyog los tiv thaiv kom tsis txhob muaj teeb meem rau sab nrauv [1].
3. Lub raj xa dej PP-R yog raug rau kev laus los ntawm ultraviolet radiation, thiab cov txheej txheem tsaus nti tiv thaiv yuav tsum tau them rau sab nraum zoov lossis ncaj nraim.
4. Ntxiv rau qhov kev sib txuas ntawm cov yeeb nkab lossis flanges nrog threaded insert los yog flanges, PP-R tube yuav tsum txuas nrog lub kub yaj kom muab cov yeeb nkab tso kom tsis muaj cov pa phem.
5, txoj hlua tawm txoj kab ntawm pp-r yog qhov loj (0.15 hli / m ℃), qhov chaw ntom ntws los sis tsis nruj kom tsis muaj qhov txuas ntawm txoj kev ncaj ncees deformation ntawm kev ntsuas yuav tsum tau muab coj los tiv thaiv cov kav dej.
6. Tom qab kev siv lub yeeb nkab, nws yuav tsum raug kuaj ua ntej yuav kaw lub raj (faus) thiab npog cov hniav (tsis-ncaj qha mus). Lub siab ceev ntawm lub raj dej txias yog 1.5 npaug ntawm lub siab ntawm lub system, tiam sis tsis tsawg tshaj 10MPa; Qhov kev sim siab ntawm cov dej kub cov dej yog ob zaug kom siab li qhov siab ntawm kev ua haujlwm, tiam sis tsis tsawg dua 1.5MPa.
7. Thaum twg tus PP-R raj siv los yog tsis faus, nws yuav tsum muab ntsia thiab tshem tawm.
Yuav ua li cas teeb meem yuav tsum PP-R tube mloog thaum lub sij hawm installation?
Dec 21, 2017
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