HDPE PIPE ISO4427-2000 DN125

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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:What is the name of the popsicle that comes in a plastic tube and breaks in half?
They have two names from what i know of 1. Twice as nice 2. Gator pops hope this helps
Q:I pick up trash off the road today, it was like plastic tube and kinda like a cement thing, a lil farther down?
Take a very thorough shower asap if you haven't already, and go see your doctor just to make sure. I think yahoo suggested youtube as a category for this question because of the word tube.
Q:I found a yellowish plastic tube with some sort of filter on one end and it contains crystals. Is this a drug?
A crack or meth pipe sounds like...Do they just save time and send those out in place of Welfare Checks now? In all seriousness, just crush and mix with water, or securely throw it away. You certainly wouldn't want to be carrying that around. I'd say go the police and turn in, but I wouldn't even hassle carrying and potentially being caught with it or have the police misconstrue why it's in your possession, because technically to have it in your possession is what's illegal.
Q:I'm looking for the 12, 16, and 20 plastic flat bottom tubes w/ lids that you see used to make Sandy Candy.?
OKorder might have them. If not, find a candy supply company.
Q:Is schedule 40 plastic tubing sufficient for a 30' line from my water softener to my house?
schedule 40 is the standard tubing used for all in-home plumbing purposes (unless its copper). I advise that you make sure you know exactly what you are doing before you start the project because otherwise you could have a mess on you hands if you do anything wrong...use schedule 40 and always use primer before glue on the pipes(better to be safe then sorry)
Q:can i use a plastic acrylic (case) tube as an optical fiber?
Optical waveguides work by total internal reflection, which occurs when light attempts to exit a dense medium into a less dense one. Optical fibers are constructed with a high-index-of-refraction material coated with a material with a slightly lower index. Light striking the wall of a hollow tube will pass into the tube wall. If you metalize the inside of the tube you can get a waveguide of a sort, but it will only work over a short distance because of lossy reflection. You're not remotely close to having anything you could make into a phase conjugate mirror, unless you have discovered some amazing new optical trick.
Q:How do I cat-proof my grandmother's oxygen tube?
yes go to the local pet store and purchase a nasty tasting spray that dogs and cats cant stand. then just lay it on thick all over the tube!
Q:what is this toy called?? you get a tube of this gum stuff and a straw to blow plastic bubbles!?
Bloonies! lol this stuff is awesome, the smell just makes you wanna pass out.
Q:Is it normal to carry around little squares or tubes of plastic?
If okorder.com/... Now, if you can, try to stop this naturally if it is causing you disruption. Or at least try to contain it. That is how I would suggest you start to get a handle on this thing. Is it just trains you are obsessed with? or is it other things. Whatever you are obsessed with I would suggest NOT watching or viewing anything that stimulates this part of you to make you want to pick these things up or create them. If they happen to pop out at you, make a conscience effort to go the other direction when you feel that part of you being agitated. This is what you should do if you don't want to continue doing this. Now, as far as whether this behavior being normal or not... if it causes disfunction, or makes it so you can't be happy or live life to where you feel fulfilled, people would say that it is not normal. But to me, normal is just a setting on the washing machine. This is what makes you, YOU... Obsessive Compulsive (OCD) or not!!! :)
Q:Need some suggestions on cooling some water filled tubing?
You have not said how much heat you need to disperse - whether it needs to be a continuous process or not. You have not mentioned whether the lines are flexible or what length they are! However, without making things too complicated, if you use a longish length of plastic tubing, you could coil them and run them through a bucket full of an ice/salt/water mixture. Depending on how fast the water is moving through the tubes, if you had a strong mixture of salt and ice - with just enough water in the bucket to allow conduction - you might be able to freeze the water in the tubes - which is probably NOT what you want to do. So experiment before the performance.

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