HDPE PIPE ISO4427-2000 DN355

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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: theres a list on one end of the tube with the objects in the tube, you have to shake the tube and look for the different objects. what is this game called? i'l like to buy it for a friend: I don't actually know of a place that sells them. I have had one made for me here is wat they did.... What you need... An Empty water/soda bottle (remove the wrapper logo thing) Some Sand 10 or more little objects that will fit in the bottle to be found A piece of string and a list of the items you put in the bottle. Ok take the bottle and put some sand and a few items shake it up and keep doing that until it is full... make sure you write down all the items you put in... the super glue the cap on... the punch a hole in the list and put the string through it and tie it around the neck of the bottle. There you go you got one that means even more because you made it.

Q: For a while the little plastic handle on my car's dipstick has been broken, some of the handle is still on the stick. Today as I was changing my oil I tried to get the dipstick out but couldn't, after some tries I accidentally chipped off a bit of the plastic, causing the dipstick to slide down 1 inch into the tube. I have read that this is not necessarily a problem, but I'm still worried. I tried extracting it by super gluing one end of a small rod to the dipstick but have had no success. How can I extract the dipstick without having to see a mechanic?: Most dip sticks will unbolt or loosen from where it attaches to the engine block and you can remove the entire assembly. Hopefully it is stuck inside and you can pull it out the bottom. If it is not there, then you will have to remove the oil pan and go looking for it.

Q: There are so many plastic tubes in the beer brewing process, and the cleaner that comes with the kit is not good enough. I was wondering if anyone has any good tips or tricks.: soak them in bleach water, a sink full of water to 1 cap of bleach.

Q: Regarding NG feeding tubes how difficult is it to take care of someone at home with one? My friend's daughter is coming to stay with me for a little while and her daughter has an eating disorder and is currently being fed with a tube. Her doctor is going to show me how to feed her with it. I was just wondering if this was going to be really complicated or fairly straight forward. Anyone have experience with NG tubes who would like to share their experience using it?: as long as you don't have to replace it, it is easy.

Q: Can plastic tubes be used for chemical dosing?: Yes, plastic tubes can be used for chemical dosing. Plastic tubes are commonly used in chemical dosing systems as they are resistant to many chemicals and can effectively transport and dispense different types of chemicals.

Q: Can plastic tubes be used for chemical transfer?: Yes, plastic tubes can be used for chemical transfer. They are commonly used in various industries for transferring a wide range of chemicals due to their resistance to corrosion, affordability, and flexibility. However, the choice of plastic material should be carefully considered based on the specific chemical being transferred, as some chemicals may react with certain types of plastics.

Q: Can plastic tubes be used for oil and gas industries?: Yes, plastic tubes can be used for oil and gas industries. They are often used for various applications such as transporting fluids, chemicals, and gases. Plastic tubes offer several advantages, including resistance to corrosion, lightweight design, and flexibility. However, specific requirements and regulations must be considered to ensure the suitability of plastic tubes for each application within the oil and gas industry.

Q: I have my own Bath Body company and want to add foot care to my line. Well I have the ingredients and know how to make the foot care, but I have yet to be able to find EMPTY, plastic tubes I can fill to be able to sell my product. Any ideas on a supplier? I'm done many searches in many serach engines with no luck! :-(: I found this site that might sell the supplies you are looking for. Just search for pump in the upper right hand corner of the site.

Q: What is the PVC composite pipe and what is the difference between it and the plastic pipe?: PPR (polypropylene) is a solid wall of plastic pipe, hot and cold water pipes usually do the building, the middle is a layer of aluminum plastic pipe with inside and outside PERT (polyethylene) composite materials, general heating pipes, PVC (polyvinyl chloride) is a solid wall pipe, because of low pressure and contain harmful substances, usually can only do drainage or wear line.