HDPE PIPE ISO4427-2000 DN73

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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]


SDR33 SDR26 SDR17.6 SDR13.6 SDR11
公称压力 PN,Mpa
0.32 0.4 0.6 0.8 1.0
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

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No, but K+N does make a filter the fits in the stock location for your car and a kit to put on a cone-type open element filter.
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Plastic pipes are usually made of synthetic resins, that is, polyester as raw materials, adding stabilizers, lubricants, plasticizers, etc., to "plastic" method in the pipe mill by extrusion processing. Because of its light weight, corrosion resistance, beautiful appearance, no bad smell, easy processing, convenient construction and other characteristics, it has been more and more widely used in building engineering. Mainly used for building construction of the water supply system, piping, drainage, exhaust and sewage sanitary pipe, underground drainage pipe system, storm pipe and wire installation supporting the use of threading pipe.
Q:Which kind of inner tube is better for river tubing, a rubber truck inner tube or a PVC plastic one?
I would get the big black heavy innertubes. but if they are rapids with rocks, make SURE they have plasctic or wood bottoms ;)
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You may look up the manning's number for the effect of using different materials.
Q:Alternatives to a stuffing tube?
I always use a plastic bag with the tip cut off. This method is also good for filling deviled eggs, piping frosting, or putting jam in the center of thumbprint cookies.
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I doubt it. If it's an AC line it has to be replaced. Aluminum is difficult to weld,
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It is fairly easy. It's just a plastic tube from her nose to her stomach. Don't put anything too hot or too cool. Room temp for liquids, unless otherwise noted by the doctor. But let her tug on it, keep it taped down, too! If she has been fed by NG for a while, I'm sure she will know what to do.
Q:How do I calculate the pressure generated on a piston face by the fluid it is pushing through a plastic tube?
If the flow is not turbulent (no high speeds) and incompressible, and the tube is of circular cross section, then Poiseuille Law flow will ensue. In Poiseuille flow through a cylindrical pipe the velocity is largest along the centerline of the tube and diminishes to zero at the inner wall quadratically with distance r: v(r) = c (R^2 - r^2) with c a constant for given viscosity and pressure gradient ( delta(p) / L ) In Poiseuille flow through a cylindrical pipe the rate of flow (volume/second) is given by Qdot, where Qdot = ( Delta(p) pi R^4 ) /(8 eta L). (where eta is the dynamic viscosity of the fluid) Since the pressure difference Delta(p) is the pressure on the piston face - ambient pressure , let's call this (p - p0) , you have p - p0 = ( 8 eta L) * Qdot /(pi R^4) Using this Poiseuille' s Law you can calculate the pressure on the piston. You say at the end of your question that the pressure used to push is kept constant. In that case the flow rate you measure should be inversely proportional to eta and L.
Q:Are there any stores that sell, carry large Corrugated Pipes, Tubes? ones that can fit around your legs?
I'm not sure if these are the best solution for you, but... something to consider, at least? Best of luck with your cosplay, in any case! (Is it strange that I'm now really curious what your costume will be? All this tube research has me interested. :y )
Q:Anyone know where I can buy a custom tube (wood, aluminum, or plastic) with the following dimension...?
Do you really need spec.s to ten thousanths of an inch and not care about the nature of the material?

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