Plastic Tubes HDPE Pipe 80

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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 recently purchased a 1972 Volkswagen Super Beetle and I found that the plastic tube above the fuel tank is cracked. I know that it is some sort of vapor trapping device, but i cannot find a replacement: Plastic? check with dealer parts department. More than likely it is a rubber hose that goes back to the air cleaner in the engine compartment.

Q: My bridge had broken and I got someone to make me a new one, but when I reviewed it over, I noticed they moved the plastic tube to the bottom of the violin. Should I not worry about it or have someone fix it?: Does the bridge have a protective cover glued to it under the string - it's called a parchment? Or does the bridge have an insert in it, usually made from Ebony? If either of these is a yes, you don't need the tube. If the answer was no to both, the tube should probably be there to protect the bridge from the string cutting in. Here is a pic of the two possibilities I've mentioned.

Q: What are the common diameters of plastic tubes?: The common diameters of plastic tubes can vary depending on their intended use, but some common sizes include 1/4 inch, 3/8 inch, 1/2 inch, 3/4 inch, and 1 inch.

Q: Can you smoke hookah with just a plastic tube?: no, you need something to put the hookah in, and you need something to light it. And you don't want to burn the plastic and breathe the fumes!

Q: How is 20 silver dollars inserted into plastic tube?: Home All Categories Computers Internet Internet YouTube ??

Q: What is the name of the popsicle that comes in a plastic tube and breaks in half?: They have two names from what i know of 1. Twice as nice 2. Gator pops hope this helps

Q: Are plastic tubes resistant to staining from food dyes?: Yes, plastic tubes are generally resistant to staining from food dyes.

Q: What is the maximum pressure plastic tubes can handle without collapsing?: The maximum pressure that plastic tubes can handle without collapsing varies depending on the type of plastic and the specific parameters of the tube, such as its diameter, wall thickness, and length. It is essential to consult the manufacturer's specifications or conduct proper testing to determine the maximum pressure tolerance for a particular plastic tube.

Q: a molten plastic flows out of a tube 8 cm long at a rate of 13 cm^3/min where the pressure differential between the two ends of the tube is 18 cm of mercury. find the viscosity of the plastic. the i.d of the tube is 1.30 mm. the density of mercury is 13.6 g/ cm^3the answer is 0.097 kg/m.s or 97 cp! help!: Hello Cedric Mapula, let us use the expression V/t = pi P a^4 / 8 l eta Here V/t = volume flown in one sec = 13 cm^3 / 60 s = 13/60 cm^3 /s pi = 3.14 P = 18*13.6*980 a = 1.3/ 20 cm = 0.065 cm l = 8 cm eta = ? Plug these and find the required eta i.e. coefficient of viscosity of liquid Ans : 0.969 g/cm*s = 0.969*10^-3/10^-2 kg/m*s = 0.0969 kg/m*s