HDPE PIPE ISO4427-2000 DN315

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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:tubular bellows?
Try plastic dryer vent pipe. Its spiral wire with some kind of mylar like skin. It can be used as bellows. Right around 4 diameter.
Q:Does the PVC-U drain plastic pipe need to be fabricated and installed?
PVC-U drainage plastic pipes shall be calculated for the installation of the pipe. The support shall be determined according to the laying method, drain pipe diameter, and the circumstances and location of the special placement.
Q:What is this tube for?
Its a spraybar oxygenates the water it goes on the part the water comes out from
Q:what are those 5-6ft light stand up tubes filled with water with a bubble and light affect?
I know just what you're talking about, in fact I used to have one. I figured you could find them just doing a google search, but no, there doesn't appear to be anything out there. I suspect the company went out of business.
Q:Is the white plastic pipe hanging on the outside of the air conditioner broken?
I do not know what you said is not the outside of the copper pipe plastic pipe is disconnected from the middle, if it is Never mind, that's just a layer of insulating pipe. It is convenient to use tape what bag prick, if not up too much trouble also never mind, just low a little (negligible) the cooling effect.
Q:There's this girl from my highschool who wears this neck wrap around thing with a plastic tube that...?
That tube Is so she can breath she has had a tracheotomy.
Q:Need some pipes or tubes to make homemade ferret tunnels throughout bedroom?
The tubes you need to get should be 4 wide which will enable the ferret to turn around inside the tube. Aluminum dryer tubing or plastic dryer tubing is this wide and you can find it at Lowes or Home Depot. The aluminum tubes you need to be careful with. As the ferret chew them up a bit edges can get a bit sharp so you need to regularly check them over and put a little duct tape on any edges. Better, though, are the tubes made especially for ferrets. There's one called the Marshall's Thruway that extends to 20 feet when stretched out. Before I bought my house I had a townhome and I had the tubes going down the stairway. The ferrets were sliding down it like there were on a luge and then running back up it as well. Links below for where to find it. There also seems to be someone with an endless supply of them on OKorder so you can save a bit more money shopping through there as well. Just search ferret tube ferret freeway or ferret thruway.
Q:Is there an instrument for measuring the leakage of underground plastic pipes?
Suggest that you do not have to find professional testing, along the direction of water excavation, water leakage at home mostly belong to small leakage, water leakage point is generally not far from water leakage.
Q:in a project tornado with 2 plastic bottles, what can I use instead of a tornado tube?
You can always try to MacGyver it with some duct tape...
Q:people singing with a tube in their mouths?
It's called a Talk Box.

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