HDPE Pipe ISO4427-2000 DN73 Plastic Tubes

HDPE Pipe ISO4427-2000 DN73 Plastic Tubes

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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

Q: So I was eating GoGurt yogurt. And I think I accidentally swallowed a part or the jagged part on the top of the tube. I don't think it was very big. I'm guessing the size was the size of half of a dime or a 1/4 of a dime. I know this doesn't sound too bad, since I've heard people who swallowed pennies, then they were fine, but I don't know how to get rid of it. I can still breathe and drink normally, but when I talk for too long, my throat starts to hurt a little. So far, I've tried drinking lots of water, swallowing some food to push it down (rice. :D), coughing, vomiting, and clearing my throat but I think it's still there. I'm actually not sure if it's still there or if it is gone, or just made a cut so it hurts. But I don't want to go to the doctors or ER, I'm poor. Are there any other ways to get the plastic out? Oh and if I leave it there, how long will it take for it to go down my throat and digest?: Try eating more rice. If that doesn't work try to stick your finger down your throat but not far enough to make you throw up. Try to pull it out. I did that once when I was choking on a cheeto. Good luck

Q: Is there an easy way to remember the color tubes (phlebotomy) and what test they are needed for?: I don't know of an easy way to remember the tube types and tests. Its just something you have to work on - though it does come pretty quickly. Another important item is the draw order of the tubes. It's very important to ensure that tube contents don't contaminate subsequent tubes and cause erroneous results.

Q: Can plastic tubes be used in high-pressure applications?: Yes, plastic tubes can be used in high-pressure applications, but it depends on the specific type of plastic used and the pressure level required. Certain types of plastic, such as high-density polyethylene (HDPE), polyvinyl chloride (PVC), and polypropylene (PP), have good resistance to pressure and can withstand high-pressure environments. However, it is important to consider factors like temperature, chemical compatibility, and the specific requirements of the application when selecting plastic tubes for high-pressure use.

Q: Can plastic tubes be used for chemical storage?: Yes, plastic tubes can be used for chemical storage. However, the type of plastic used must be compatible with the specific chemical being stored to ensure safety and prevent any chemical reactions or degradation of the tube material.

Q: Are plastic tubes suitable for outdoor use?: No, plastic tubes are not suitable for outdoor use as they can degrade and become brittle when exposed to sunlight and extreme temperatures.

Q: Can plastic tubes be used for fluid transfer?: Yes, plastic tubes can be used for fluid transfer.

Q: how do you get 2 pieces of plastic tube unstuck?: Are they PVC? Is there a joint or fitting over them (a bigger piece of PVC that both tubes fit into)? Did someone else assemble it (or did you assemble it with a PVC glue)? If you answered yes to all three of these, you are in trouble. PVC is often assembled with glues which can be very difficult or impossible to undo. It is often easier to just cut the PVC and then extend it with a new joint.

Q: How do you prevent plastic tubes from becoming discolored?: To prevent plastic tubes from becoming discolored, you can follow a few simple steps. First, avoid exposing them to direct sunlight or excessive heat, as this can cause fading or yellowing. Second, clean them regularly using a mild soap or detergent and warm water, avoiding harsh chemicals that can cause discoloration. Third, try to store them in a cool and dry place, away from any potential contaminants or chemicals that may stain them. Finally, consider using UV-resistant or opaque tubes that are specifically designed to resist discoloration.

Q: just curious about commerce. . .: Because they are not making plastic tube radios anymore. Human bones are made all the time.

Q: How do plastic tubes compare in cost to other packaging options?: Plastic tubes are generally cost-effective compared to other packaging options due to their low production costs, lightweight nature, and efficient use of materials.

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