HDPE PIPE ISO4427-2000 DN90

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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:I cant find them online and i need some.: They have two names from what i know of 1. Twice as nice 2. Gator pops hope this helps

Q:My model rocket's (currently being built) body tube has a slight issue.First, this is how im making it.Taking a plastic tube, I wrap a piece of construction paper around it, and glue it. (not to the tube, but to itself so I can slide out the tube, and have a cylindrical paper mold.) Next, I take a special type of paper with water-activated adhesive on one side, and wrap it around the construction paper.However, now that everythings dry, I find that upon gluing the construction paper, I also glued it to the tube. Now the plastic tube is stuck within.How can I get it out without tearing my outer shell?Im guessing with heat/cold, but Im not sure.: To save what you have so far, slit the tube you glued up and peel it off,clean the plastic tube. Then re-glue your paper tube with white glue using wax paper over the plastic tube. Then add another layer or two of the water activated paper. You can cut the paper into 3 inch wide strips then spiral it around the tube. It will be much stronger. Make your tube longer then you need because the ends will be rough and you will want to cut them off. Let it dry for a few days so it will stiff-in up. If it is not strong enough add more layers.

Q:PVC flame retardant pipes have three kinds of ABC, heavy duty is not rigid flame retardant tube?: The rigid flame retardant tube is usually made of white hard material. It is refractory and connected directly with the head or screw joint. The diameter of the small tube can be bent by spring. It is the most widely used electric threading pipe in plastic pipes.

Q:What types of closures are available for plastic tubes?: There are various types of closures available for plastic tubes, including screw caps, flip-top caps, snap-on caps, pump dispensers, and twist-off caps.

Q:What sensors can be used to measure changes in the water level in a transparent plastic pipe?: The infusion can be troublesome, and this should be done by the manufacturer who produces the infusion apparatus. The method is to place a styrofoam ball in it, and then solve it by light control. In this way, it is important to fix the reservoir.But this approach has been developed to reduce the work pressure of nurses, especially nurses in intensive care unit.

Q:Can plastic tubes be used for bottling beverages?: Yes, plastic tubes can be used for bottling beverages.

Q:What industries commonly use plastic tubes?: Some industries that commonly use plastic tubes include the medical and pharmaceutical industry, food and beverage industry, cosmetic and personal care industry, plumbing and construction industry, and the automotive industry.

Q:Are plastic tubes suitable for cosmetic sampling?: Yes, plastic tubes are suitable for cosmetic sampling due to their lightweight, portable, and hygienic nature. They provide a convenient way to distribute and test cosmetic products while protecting them from contamination and ensuring accurate dosage.

Q:Can duct tape be used to fix flexible plastic tubing? We sprung a leak in the flexible plastic tubing last night and so I am hoping I can just use duct tape to fix the small crack in the flexible plastic tubing. Thanks,Jeff: I have used duct tape to seal a TIRE, but never a tube. I am not much for patching my high pressure tubes because of the balance issues. I never hit the road without 2 extra tubes in my seat pack. I do carry a small patch fit, but I use those to seal the inner casing of the tire. I should own stock in one of those tube factories, for I buy new tubes by the half dozen.

Q:incase i needed antibiotics and the nurse had a technician take my bloodpressure and i told him and he saw how i ahd that lil plastic tube in my vein incease i needed antiobiotics and i said shouldnt you do it on the other arm and he was like no its ok and he cecekd my blodd pressure while i ahd that in my vein is that really ok to do that??????????????? cus later she checked my blood pressure again ten mintues after he did that and it was only 70 and later when i left the hospital i was so dixxy and felt imparied but they also gave me adovine a anti anxiety could that habe made me dizzzy? was it ok that he checked my blood prssuere witht hat in my vein?: SPELLING IS FUNDAMENTAL

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