Plastic Tubes HDPE Pipe ISO4427-2000 DN16

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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: How are plastic tubes measured and specified?: Plastic tubes are typically measured and specified based on their outer diameter (OD), inner diameter (ID), and length. The OD and ID are measured using micrometers or calipers, while the length is measured using a measuring tape or ruler. The specifications are often indicated in millimeters or inches. Additionally, the thickness of the tube's wall may also be specified, as it can affect its strength and durability.

Q: What is the maximum pressure plastic tubes can handle without bursting?: The maximum pressure that plastic tubes can handle without bursting depends on various factors such as the type of plastic used, the thickness and quality of the tube, and the specific application or industry requirements. It is essential to refer to the manufacturer's specifications or consult with an expert to determine the precise maximum pressure tolerance for a specific plastic tube.

Q: What are the ways to remove the taste in plastic pipes?: Method for removing peculiar smell of plastic pipe by vinegar. Clean the plastic tube with detergent first. Then soak the plastic tube in the vinegar and heat to 50-60 degrees. Keep the temperature. After 30 minutes, take out the plastic tube and clean it;

Q: he dips one end at the gasoline at the tank, why does the tecnique work: because the suction of dipping the hose in the tank makes a vacuum that pulls the gas out of your tank.

Q: What are the different closure options for flip-top tubes?: The different closure options for flip-top tubes include snap-on caps, screw-on caps, and flip-top caps.

Q: Looking at getting a Kamp;N Cold Air Intake and am unable to decide between the chrome or plastic tube? Does one perform better than the other? I know the Chrome would definitely look better under the hood.: There's nothing wrong with the cold air intake system that came on the motor from the factory. You'd need over $3000 worth of cams and other high performance mods to even get close to needing more air flow.

Q: Are plastic tubes suitable for underground installations?: Yes, plastic tubes are suitable for underground installations. Plastic tubes, such as PVC or HDPE pipes, are commonly used for various underground applications such as water and sewage systems, electrical conduits, and telecommunications. These tubes are durable, corrosion-resistant, and have good flexibility, making them a reliable choice for underground installations. Additionally, plastic tubes are lightweight, easy to transport, and relatively cost-effective compared to other materials, making them a preferred option for many construction projects.

Q: Can mercury be stored in a hard plastic test tube?: be aware that temperature plays a crucial factor with mercury, putting a lot of mercury into a test tube will be a bad idea if it's possible that the temperature will fluctuate. Storing it inside the fridge would be a good idea or storing a small amount should be fine though

Q: What is the maximum diameter-to-length ratio for plastic tubes?: The maximum diameter-to-length ratio for plastic tubes can vary depending on the specific type of plastic and the intended application. However, generally speaking, plastic tubes typically have a maximum diameter-to-length ratio of around 10:1.

Q: inner tubes and tire. I'm looking for some advice about what to do next.: Your tire might the the culprit. Feel along the inside of the tire for abrasions or holes. Feel along the side wall of the rim. Lastly take note of where the holes are on the inner tube. You got 2 ways of doing it. pumping up the tube and putting it in a bucket and searching for bubbles, mark area with tape or with white out. You can also pump up the tube and just feel for air coming out. The first works good on tiny holes, and the second doesn't work so well with tiny holes. You could be pinching tubes as you replace them. So once you figure out how you are getting the flats fixing the cause is easier.

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