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PE PIPES FOR DISTRIBUTION OF DRINKING WATER

APPLICATION

Polyethylene has been used to make pipes for over 60 years mainly in the distribution of drinking water and gas as well as in the systems for the discharge of wastewater.
In addition to corrosion and broad chemical resistance, the resistance to mechanical abrasion and low weight, the pipes made of polyethylene excel further with the flexibility and time durability as well.

STANDARDS

PE pipes for the distribution of drinking water are produced in accordance with the DIN EN 12201 standard and the Slovenian technical approval STS-16/0010, issued by the Construction Institute of Slovenia. The pipes are manufactured according to the law regarding the health suitability of food and products as well as the materials that come into contact with food. For these, we also have the appropriate W 270 certificate.
Polyethylene pipes for potable water are marked with a blue stripe.

CHARACTERISTICS AND CLASSIFICATION OF PE MATERIALS (PE 80, PE 100, PE 100 RC PLUS)

According to the new ISO classification (ISO TR 9080, ISO 12162), we classify the PE pipe material for a minimum long-term strength (IAS), which is obtained by using the standard methods of extrapolation. In Table 1, the value of IAS and σs for individual types of PE material are given.

ADVANTAGES

Welded polyethylene pipes are permanently tight tubular rods. When welded along with the coupling parts, we get permanently tight pipe systems with which we can achieve maximum operational safety. The flexibility of PE pipes allows rational techniques of installation and thus reduces costs. In the case of the collapse or moving of the ground, there are no cracks or fractures as with rigid pipes made of other materials.

CLASSIFICATION OF PE MATERIAL

Materials
TYP
MRS (MPa)
The minimum
strength required
σs = MRS/C (MPa)
Permissible
tension
PE 80 8 6,3
PE 100 10 8
PE 100 RC PLUS 10 8

CORRELATION BETWEEN SDR AND S

SDR S PE 80 PE 100 PE 100 RC PLUS
17 8 8 10 10
13,6 6,3 10 12,5 12,5
11 5 12,5 16 16

PIPES MADE OF PE 80

d (mm) 6 bar
(SDR 21)
e (mm)
8 bar
(SDR 17)
e (mm)
10 bar
(SDR 13,6)
e (mm)
12,5 bar
(SDR 11)
e (mm)
16 bar
(SDR 9)
e (mm)
20 2 2,3
25 2,3 2,3 3
32 2 2,4 3 3,6
40 2 2,4 3 3,7 4,5
50 2,4 3 3,7 4,6 5,6
63 3 3,8 4,7 5,8 7,1
75 3,6 4,5 5,6 6,8 8,4
90 4,3 5,4 6,7 8,2 10,1
110 5,3 6,6 8,1 10 12,3
125 6 7,4 9,2 11,4 14
140 6,7 8,3 10,3 12,7 15,7
160 7,7 9,5 11,8 14,6 17,9
180 8,6 10,7 13,3 16,4 20,1
200 9,6 11,9 14,7 18,2 22,4
225 10,8 13,4 16,6 20,5 25,2
250 11,9 14,8 18,4 22,7 27,9
280 13,4 16,6 20,6 25,4
315 15 18,8 23,2 28,6
355 16,9 21,1 26,1 32,2
400 19,1 23,7 29,4 36,4
450 21,5 26,7
500 23,9 29,7
630 30 37,4

*AVAILABLE BY ARRANGEMENT
Also available in other pressure levels.

PIPES OF PE 100 PE AND 100 RC PLUS

d (mm) 6 bar
(SDR 26)
e (mm)
8 bar
(SDR 21)
e (mm)
10 bar
(SDR 17)
e (mm)
12,5 bar
(SDR 13,6)
e (mm)
16 bar
(SDR 11)
e (mm)
20 bar
(SDR 9)
e (mm)
20 2 2,3
25 2,3 2,3 3
32 2 2,4 3 3,6
40 2 2,4 3 3,7 4,5
50 2 2,4 3 3,7 4,6 5,6
63 2,5 3 3,8 4,7 5,8 7,1
75 2,9 3,6 4,5 5,6 6,8 8,4
90 3,5 4,3 5,4 6,7 8,2 10,1
110 4,2 5,3 6,6 8,1 10 12,3
125 4,8 6 7,4 9,2 11,4 14
140 5,4 6,7 8,3 10,3 12,7 15,7
160 6,2 7,7 9,5 11,8 14,6 17,9
180 6,9 8,6 10,7 13,3 16,4 20,1
200 7,7 9,6 11,9 14,7 18,2 22,4
225 8,6 10,8 13,4 16,6 20,5 25,2
250 9,6 11,9 14,8 18,4 22,7 27,9
280 10,7 13,4 16,6 20,6 25,4
315 12,1 15 18,8 23,2 28,6
355 13,6 16,9 21,1 26,1 32,2
400 15,3 19,1 23,7 29,4 36,4
450 17,2 21,5 26,7
500 19,1 23,9 29,7
630 24,1 30 37,4

*AVAILABLE BY ARRANGEMENT
Also available in other pressure levels.

PE 80

Smaller diameter pipes (up to max. d 125 mm) are generally supplied in coils, and are mainly used for the implementation of house connections and distribution lines. Since these are highly branched and often change direction, they need to be made of a very flexible material or pipe. In this case, it is the most appropriate to use PE 80.

PE 100, PE 100 RC plus

The main supply lines, which connect the place of the preparation of water with the distribution networks, are generally implemented with pipes made of PE 100. The PE 100 is a logical continuation of the development, which has enabled an increased usefulness of PE systems. A higher strength of the material gives us the possibility to produce pressure pipes of larger diameters. These pipes are usually available in bars of 12 meters and more.

WELDING, JOINING AND FITTING

Pipes made of PE are commonly brewed with known methods: butt and electro-fusion welding, and by using standard PE fittings, PE 80 or PE 100. When transferring pipelines from PE 80 to PE 100 we recommend merging with electro-fusion coupler. Pipes can be joined mechanically with toothed couplings.