Plastic Tubes HDPE Pipe ISO4427-2000 DN25

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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: What is the difference between rigid and rigid and semi rigid in electric PVC plastic pipes?: The hard PVC does not contain softener, therefore, the utility model has the advantages of good flexibility, easy molding, uneasy brittleness, no poison, no pollution and long storage time, so the utility model has great development and application value. Hereinafter referred to as "PVC".

Q: What is the minimum wall thickness for transparent plastic tubes?: The minimum wall thickness for transparent plastic tubes can vary depending on the specific material and manufacturing process used. However, a common guideline is to have a minimum wall thickness of approximately 0.5mm to ensure structural integrity and transparency.

Q: When the concrete is poured into the concrete, the formwork is lined with white tubes. What is that for?: This is a through - wall bolt sleeve that is capable of pulling out through - wall bolts after concrete placement has been completed. PVC plastic pipes are generally used for through wall bushings, and the diameter is generally larger than that of through wall bolts. The steel bar can pass through the steel bars.

Q: I've seen these big plastic tubes in pet stores recently and the box for them says that they are meant for guinea pigs. I don't understand I thought guinea pigs like big places to hide not little spaces where they can't move freely. But maybe I'm wrong, do guinea pigs really like them?: yea most rodents like tubes and are curious i had a guinea pig and it would always go through a tube that i put in its cage just get a tube out of hard material becuase it will chew it up

Q: I am looking for plastic tubing that has an ID of .5mm to 1mm that is made of a light weight material, and is sold in straight lengths, opposed to a coil. I am trying to avoid the coil because my application requires a very straight piece of tubing. Any help would be greatly appreciated. Thanks, Zach: This Site Might Help You. RE: Where do I buy small diameter straight lengths of plastic tubing? I am looking for plastic tubing that has an ID of .5mm to 1mm that is made of a light weight material, and is sold in straight lengths, opposed to a coil. I am trying to avoid the coil because my application requires a very straight piece of tubing. Any help would be greatly appreciated....

Q: Are plastic tubes safe for food and beverage applications?: Yes, plastic tubes are generally safe for food and beverage applications. However, it is important to note that the safety depends on the type of plastic used and its compliance with food-grade standards. Food-grade plastics, such as polyethylene and polypropylene, are commonly used for manufacturing tubes that come into contact with food and beverages. These plastics are non-toxic, resistant to chemicals, and can withstand the necessary temperatures for food and beverage applications. Additionally, it is vital to ensure that the plastic tubes are properly cleaned and maintained to prevent any contamination.

Q: How can the pipe support for water supply and drainage be calculated?: The quota regulation is this: the indoor pipe support is all included in the quota, the outdoor pipe support, regardless of the diameter of the pipe, according to the designed pipe support, is calculated by ton.

Q: Can plastic tubes be used for DIY crafts?: Yes, plastic tubes can definitely be used for DIY crafts. They are versatile and can be shaped, cut, and decorated to create various projects such as pen holders, vases, wind chimes, and even jewelry. Plastic tubes are easily available and can be found in different sizes and colors, making them a great material choice for crafting.

Q: Can plastic tubes be used for craft projects like DIY lamps?: Yes, plastic tubes can definitely be used for craft projects like DIY lamps. They are versatile, lightweight, and easy to work with, making them ideal for creating unique and creative lamp designs. Additionally, plastic tubes come in various sizes and colors, allowing for endless possibilities and customization in your craft projects.