HDPE PIPE ISO4427-2000 DN180

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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:adhering scrapbook paper to plastic tube?
Can you wrap the paper around the tube and just glue the paper to itself, or tape the paper to itself?
Q:Why can you no longer get toothpaste in metal tubes?
It is due to cost. Drinks used to be sold in steel cans and glass bottles, now they are sold in aluminum cans and plastic bottles, due to cost. You can buy a plastic clip to put on the toothpaste tube to solve your problem.
Q:What is this tube for?
Ah, a simple filter (I'd really apprieciate some information on the build quality and noise level of that. Intake is trough the slots at the bottom. Top left shows the outflow pipe, that makes a 90 degree angle up and then another 90 degree angle. The clear plastic tube has holes in it so that the returning water is distributed evenly and results in a bit more air in the water.
Q:What are some things to buy to take the focus off going to the register with only a tube of Preparation H?
Buy a box of tampons and some condoms...If getting one crazy thing then why not the rest? haha but maybe some depends and blame it on your grandpa that your taking care of
Q:Blood clotting agent that comes in a small plastic tube?
It is probably similar to a Cederroth blood stopper dressing. It contains crystals that form a gel when in contact with blood, thus producing a gel plug.
Q:Where can i find small clear flexible tubing.?
Any large hardware store should have it. I've seen it at Ace Hardware in a variety of sizes.
Q:Is the water pipe made of stainless steel or plastic pipe?
Stainless steel plumbing, of course! Plastic pipes in the production process, in order to product stability, will add plasticizers, antioxidants and other substances carcinogenic to the human body.
Q:Why is the concrete wall filled with long and thin white plastic pipes?
When the wall and the wall are wide, the wall bolts are used, and the through wall bolts are used to pull through the formwork so that the wall formwork can not run out of shape when playing the concrete. The utility model is arranged in the plastic pipe for easy placement and extraction, and is convenient for repeated use.
Q:Why, in general, the strong tube is plastic tubes, weak tubes are metal tubes?
Strong electricity with plastic pipe is to prevent leakage in the insulation role, such as using metal tube will be connected to the ground, weak electricity is the leakage of electricity, will not be dangerous
Q:How do you get the last squeezes out of the new plastic tubes?
I found a gadget in a magazine that is shaped like a T. The top part of the T is the handle and the bottom part has a little slit in it almost to the top part of the T. You put the almost empty tube into the slit and use the top part as a handle to roll the bottom up. You'd be surprised how much you can get out of a tube you almost threw away! You can find the in any of the senior products type magazines and they're pretty cheap.

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