HDPE pipes with a history of 60 years of technological developments that have positively influenced and until today has become one of today's most preferred tube.• HDPE pipes; It maintains the general properties of the fluid inside.• HDPE pipes; moss on hold due to the inner surface can be used in drinking water systems.• HDPE pipes; Due to its chemical nature, it has a high resistance to chemicals.• HDPE pipes; To take shape and slope of the sloping terrain by laying is very simple due to be flexible.• HDPE pipes; Due to its high elasticity properties, for use in areas where a lot of seismic activity is very comfortable. It can orient itself according to the direction of movement of ground motion and does not break.• HDPE pipes; Other types of pipes• HDPE pipes; welding and assembly methods are very simple.•HDPE pipes; Easy to carry because of the weight and thus shipping is cheap.• HDPE pipes; It is highly resistant to acids and alkalis. Only damaged by nitric acid.• HDPE pipes; Environmentally Friendly.• HDPE pipes; Are not affected by underground, there is no refractive properties.• HDPE pipes; it do Not conduct electricity.• HDPE pipes; a good level of friction, wear and has a rustproof.• HDPE pipes; It is strong against microorganisms.
One of the difference of the expansion coefficient of the metal pipe to the metal pipe P is it is 10 times larger . That means more expansion and contraction will occur.Long-term use would be by limiting the temperature in the pressure pipe. This is usually 60 ° C t. Use of pressure for different temperatures are listed in the following table;
Max. Permanent temperature (oC)
Multiplication Factor
-29
2.54
4
1.49
38
0.73
-23
2.36
10
1.32
43
0.64
-18
2.18
16
1.18
49
0.58
-12
2.00
23
1.00
54
0.50
-7
1.81
27
0.93
60
0.43
-1
1.65
32
0.82
Due to the change pipe and welded seams temperature stresses can easily meet. Totally it is not necessary to use a system expansion or expansion in PE.PE 100 pipe expansion coefficient is higher than other materials need to be aware of the following;* PE 100 Pipes that will be exposed to a certain temperature to be rejuvenated, will make snake like movements or will put pressure on the fixed point.* Joints in the HDPE pipe connection is required to connect a methanic playing against it.