HDPE PIPE ISO4427-2000 DN280

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Physical properties[edit]

Polyethylene is a thermoplasticpolymer consisting of long hydrocarbon chains. Depending on the crystallinity and molecular weight, a melting point and glass transition may or may not be observable. The temperature at which these occur varies strongly with the type of polyethylene. For common commercial grades of medium- and high-density polyethylene the melting point is typically in the range 120 to 180 °C (248 to 356 °F). The melting point for average, commercial, low-density polyethylene is typically 105 to 115 °C (221 to 239 °F).it is transprant.

Chemical properties[edit]

Most LDPE, MDPE and HDPE grades have excellent chemical resistance, meaning that it is not attacked by strong acids or strong bases. It is also resistant to gentle oxidants and reducing agents. Polyethylene burns slowly with a blue flame having a yellow tip and gives off an odour of paraffin. The material continues burning on removal of the flame source and produces a drip.[3] Crystalline samples do not dissolve at room temperature. Polyethylene (other than cross-linked polyethylene) usually can be dissolved at elevated temperatures in aromatic hydrocarbons such as toluene or xylene, or in chlorinated solvents such as trichloroethane or trichlorobenzene.[4]

GB/T13663-2000:

PE63管材规格
公称
外径dn,mm
SDR33 SDR26 SDR17.6 SDR13.6 SDR11
公称压力 PN,Mpa
0.32 0.4 0.6 0.8 1.0
公称
壁厚
公称
壁厚
公称
壁厚
公称
壁厚
公称
壁厚
16        2.3
20      2.3 2.3
25    2.3 2.3 2.3
32    2.3 2.4 2.9
40  2.3 2.3 3.0 3.7
50  2.3 2.9 3.7 4.6
63 2.3 2.5 3.6 4.7 5.8
75 2.3 2.9 4.3 5.6 6.8
90 2.8 3.5 5.1 6.7 8.2
110 3.4 4.2 6.3 8.1 10.0
125 3.9 4.8 7.1 9.2 11.4
140 4.3 5.4 8.0 10.3 12.7
160 4.9 6.2 9.1 11.8 14.6
180 5.5 6.9 10.2 13.3 16.4
200 6.2 7.7 11.4 14.7 18.2
225 6.9 8.6 12.8 16.6 20.5
250 7.7 9.6 14.2 18.4 22.7
280 8.6 10.7 15.9 20.6 25.4
315 9.7 12.1 17.9 23.2 28.6
355 10.9 13.6 20.1 26.1 32.2
400 12.3 15.3 22.7 29.4 36.3
450 13.8 17.2 25.5 33.1 40.9
500 15.3 19.1 28.3 36.8 45.4
560 17.2 21.4 31.7 41.2 50.8
630 19.3 24.1 35.7 46.3 57.2

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Q:Is the PPR plastic pipe really poisonous? Is the news true?
PPR plastic pipes are unsuitable for household water pipes, which are the secrets of the pipeline industry. The reason is that PPR raw materials are cheap, easy to install and profitable. In foreign countries, PPR plastic pipes are only used for industrial water transportation or general purpose water transportation. They are never used in families. What is more the foreign common PPR plastic pipe to sell high priced China family, as the name of import earn dirty money.
Q:Hot melt construction technology of PPI plastic pipe
The hot melt tool is connected to the power supply and can start operation until the working temperature indicator is bright;
Q:securing a hollow tube to a flat wooden surface?
you can try small brackets
Q:NG tubes, hard to take care of?
It is fairly easy. It's just a plastic tube from her nose to her stomach. Don't put anything too hot or too cool. Room temp for liquids, unless otherwise noted by the doctor. But let her tug on it, keep it taped down, too! If she has been fed by NG for a while, I'm sure she will know what to do.
Q:Broken Dipstick stuck inside the tube.?
remove the oil and oil sump,then u can remove broken dipstick bottom form the oil sum
Q:Where can i get plastic tubing for Drinking hats?
go to Ace hardware store and get what you need
Q:how long does it take for a gerbil to claw through a plastic cage with tubes and why do they?
My Habittrail, set was so cool when I was a kid.. we bought over 50 feet of tubes before we stopped, they went up and down and spiraled around our family room.... My Gerbils never clawed through it. My kids use it for their Hamsters now. It is still going strong ..
Q:I would like to make a tube pour-in machine how do I go about it?
These are complicated electro mechanical devices.Another way would be to look at any patents filed explaining the principles of operation and come up with your own simplified designs that you may be able to build yourself, or get built for you.
Q:What kinds of plastic pipe are divided into?
The most widely used plastic pipe is plastic pipe. There are many kinds of plastic pipes, which are divided into two categories: thermoplastic pipes and thermosetting plastic pipes. It belongs to thermoplastic, including PVC pipe, polyethylene pipe, polypropylene pipe, POM pipe, super high molecular weight polyethylene pipe, etc. it belongs to thermosetting phenolic plastic pipe. The main advantages of plastic pipes are good corrosion resistance, light quality, convenient molding and easy processing. The disadvantages are low strength and poor heat resistance.
Q:Where would I find a oil dipstick tube for a 1999 Volkswagen Jetta?
OKorder craigslist junkyard vw dealer

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