當(dāng)管件連接不正后,，在安裝整段管路系統(tǒng)時，采用管卡將三通,、彎頭等管件硬性扳正,，則會使管道系統(tǒng)長時間承受較大的應(yīng)力，導(dǎo)致一些熔焊不好的位置在一段時間后容易產(chǎn)生泄露,。所以在熔焊前,，先預(yù)安裝，pvc管業(yè)電話,，用筆畫標(biāo)記線,；在正式連接時只要對齊該標(biāo)記線就可以了。
when the pipe fittings are not connected correctly,，pvc管業(yè),， when installing the whole pipeline system， the pipe fittings such as tee&elbow are rigidly straightened by pipe clamps,， which will cause the pipeline system to bear large stress for a long time,，亳州pvc管業(yè)， which will lead to leakage in some places with poor fusion welding after a period of time. so before welding,， pre install&mark line with strokes; just align the marker line when you are formally connected.
ppr管格與管件連接端面必須清潔,、干燥,、無油,。
用卡尺和合適的筆在管端測量并標(biāo)繪出熱熔---,，熱熔---應(yīng)符合下表規(guī)定：
熔接彎頭或三通時,，pvc管業(yè)加盟,，按設(shè)計(jì)圖紙要求應(yīng)注意其方向，在管件和管材的直線方向上,，用輔助標(biāo)志標(biāo)出其位置。
the connecting end face of ppr pipe lattice&pipe fittings must be clean,， dry&oil-free.
measure&plot the hot melt profundity at the pipe end with a caliper&a suitable pen. the hot melt profundity shall meet the requirements of the following table:
when welding elbows/tees,， the direction could be noted according to the requirements of design drawings,，&the place shall be marked with auxiliary marks in the straight direction of pipe fittings&pipes.
根據(jù)耐腐蝕性能來參考?
具體來說，ppr管材耐腐蝕與防結(jié)垢性能則施工項(xiàng)目管道的基本需求,，優(yōu)良的ppr管材的耐化學(xué)腐蝕性能---,，其能夠抵抗水中的化學(xué)元素的腐蝕，與此同時,，其表面則可避免水垢的形成,，以此可以促使輸送的水潔凈與衛(wèi)生。
according to the corrosion resistance
specifically,，corrosion resistance&anti scaling performance of ppr pipe are the basic requirements of building project pipeline. excellent ppr pipe has better chemical corrosion resistance,， which can resist the corrosion of chemical elements in water. at the same time,， its surface can avoid the formation of scale,， which can promote the transmission of water more clean&sanitary.
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