Production range of  Peštan HDPE pipes for transportation of gas under pressure includes  pipes produced  from the highest quality polyethylene PE-80 and PE-100 in diameters from Ø16 to Ø630.

Also, the pipes are  available in four variants (depending on the pressure to which they are intended, and the material they are made):

PE-80

SDR17 – PN1

SDR 11 – PN4

PE-100

SDR17 – PN6

SDR 17.6 – PN6

SDR 11 – PN10

Peštan is able to offer a complete range of welded fittings manufactured in all diameters and all working pressures.

Also, other operating pressures are available upon request.

Resistance to elevated temperature:

At  increased exploitation temperatures (eg. Industrial use) it is necessary to correct the value using the PN -a reduction coefficient from the table:

Physical properties of materials:

Chemical resistance of materials

Table of chemical resistance of material viewed in the section Download

Connecting polyethylene pipes

There are several ways to connect polyethylene pipes for transport of gas. The pipes can be connected in the following ways:

1. Frontal  welding
2. Electrofusion welding
3. Compression fitting (diameters up to Ø125)
4. Connecting sleeves and flanges

Electrofusion and frontal  welding are performed according to the guidelines of DVS 2207-1

Installation, jointing and testing of polyethylene pipeline is done according to applicable European standards and guidelines:

EN 805

EN 1610

DVS 2207-1

DVGW W 400-2 (A)

Safety factor of HDPE gas pipes is 1.60

Coefficient of linear expansion of polyethylene is 1,3×10-4C-1 (0.13 mm/m° C)