Color, good PP-R water pipe color is soft and uniform, no noise. (PP-R pipes mainly include white, gray, purple, green, yellow, and blue. Consumers often think that white is the best. In fact, color is not the standard for judging quality. In fact, the quality of PP-R pipes is similar to that of PP-R pipes. The color of the water pipe has nothing to do with it. The plastic particles are mainly white and transparent (there are also other colors that have been added with masterbatch), as long as the masterbatch is added, any color can be produced, and the masterbatch will not be decomposed nor will it change the quality of PP-R , so it doesn't matter what color the water pipe is. According to the national regulations, the PP-R water pipe must have good light-blocking performance. In this regard, gray or other opaque properties will be better. But this advantage is only In the installation of open pipes and pipe wells, the water pipes of home improvement are all buried in the dark, so there is no such thing as gray is better than other colors. PP-R pipes are completely opaque, and pseudo PP-R pipes are slightly transparent. Or semi-transparent. White products can only be produced from pure PP-R raw materials. For example, the color of products produced by adding recycled materials, scraps, and scraps is not soft or uniform, while other color products processed with color masterbatch are added and recycled. materials, scraps, scraps, etc. will not affect the color of the product. This is why many manufacturers who focus on quality and home improvement retail are mainly white); The inner and outer surfaces of the product should be smooth and flat, no bubbles, obvious defects such as pits, trenches and impurities.
"touch" texture
Yon bon tiyo dlo PP-R se 100 pousan PP-R matyè premyè (san okenn aditif). Teksti a se pi bon kalite, sifas la se lis ak men an santi l mou, ak pseudo PP-R tiyo a santi l lis. Anjeneral pale, patikil ki graj yo gen anpil chans yo dwe melanje ak enpurte;
"smell" the smell
Materyèl prensipal PP-R tiyo se polypropylène. Tiyo bon pa gen okenn odè, ak tiyo pòv gen yon sant etranj. Li gen anpil chans yo dwe melanje ak polyethylene olye pou yo polypropylène;
"pinch" hardness
Tiyo PP-R gen dite konsiderab, epi yon tiyo ki ka defòme pa zongle se definitivman pa yon tiyo PP-R;
"Quantity" Wall Thickness
Anplis de sa, kalib vernier ka itilize pou mezire si epesè miray tiyo a se jiska estanda ak inifòm. Anjeneral, bon tiyo yo pwodui an akò strik ak estanda nasyonal la, men metòd sa a mande pou yon sèten konpreyansyon sou estanda nasyonal la pou PP-R tiyo.
"listen" to the sound
Son tiyo PP-R a se mat, e son tiyo pseudo PP-R a pi klè.
"Smash" elasticity
A good PP-R pipe has good "resilience" and is easy to smash. Naturally, it is not a good PP-R pipe, but the best PP-R pipe can be smashed even if the temperature is lower than 10 degrees. However, strong hardness does not mean good elasticity. Some manufacturers increase the hardness by adding too many impurities such as calcium carbonate, which cannot be broken, and are easily brittle after a long time; (due to the cold brittleness of PP-R raw materials, performance in several temperature ranges Different: 10, -5, -23...)
"burning" smoke smell
The PP-R tube with recycled plastic and other impurities mixed in the raw material will emit black smoke and have a pungent odor. And good materials will not emit black smoke and odor after burning, and the molten liquid is still very clean after burning. (Also you can "pull", see its pull "length")
"melt"
Tanperati nòmal soude PP-R tiyo se nan ranje 260-290 degre. Bon jan kalite a soude pral pi byen garanti pandan soude nan seri tanperati sa a. Si paramèt yo soude yo anba paramèt soude nòmal, pwodwi a ka fasilman antre nan mouri a soude pandan soude. Ak pil la soude se tou pre likid, sa vle di ke pwodwi a pa pwodwi pa natif natal PP -R matyè premyè, epi si pil la soude ka byen vit refwadi ak fè tèt di toujou (anjeneral nan 10 segonn), li kapab tou. endike ke pwodwi a se pa natif natal PP -R matyè premyè Sa a se paske youn nan karakteristik sa yo nan PP-R se ke efè a izolasyon tèmik se pi bon, ak to refwadisman li yo pral natirèlman pi dousman.
Tcheke si wi ou non dyamèt enteryè tiyo a defòme epi si ekipman tiyo yo trase. Yon bon tiyo PP-R pa ka trase, epi dyamèt enteryè a pa fasil defòme.
"check"
Prete ekipman tès pou fè tès yo ka efektivman distenge avantaj ak dezavantaj pwodwi yo. Plizyè egzijans tès trè enpòtan yo espesifye nan estanda nasyonal la, tankou tès rezistans tiyo aje (anba estrès bag nan 1.9MPa ak tanperati tès la nan 11 0 degre, tès la ki kenbe pou 8760 èdtan san echèk) , tès la estabilite nan sistèm nan kanalizasyon (cho ak frèt) 5000 sik) ak tès rezistans enpak, elatriye, kidonk itilizatè a ka mande manifakti a oswa biznisman bay rapò tès la pi wo a pou verifikasyon. Anplis de sa, li bezwen fè remake ke estanda nasyonal la tou gen yon kondisyon enpòtan pou matyè premyè yo itilize pou tiyo ak ekipman, ki se endèks la fonn. Pi gran pase 0.5g/10min.