Polyethylene pipes are used as channels for optical cables (as casing for optical cable, providing protection for telecommunication and electrical power cables. They are black, with the smooth outer and grooved inner surface, supplied in a range of diameters, from DN 20 to DN 110 mm and used at the working pressure of 6 bar. The nominal diameter is the outer diameter of the pipe. They are supplied in the form of straight rods, 6 m and 12 m long, as well as in coils (according to the customer’s requirements). The following permanent markings are placed at a distance of 1 m of the pipe:
Kind and type of material,
Outer diameter and wall thickness, in mm,
Name of manufacturer,
Number of machine,
Date of manufacture (month and year),
The pipes are marked at distances of 1m,
Production and quality control are in compliance with the following relevant standards:
- SRPS EN 12201,
- Technical Conditions regulating the polyethylene pipes of small diameter, for cable-type sewage, “PTT Vesnik” No. 25/87,
- Technical Conditions regulating the polyethylene pipes of small diameter, for cable-type sewage, “PTT Vesnik” No. 8/75.
To this purpose and based on the customer’s requirement, we also offer pipes of different pressure values and nominal diameters. These options are not included in the table below.
|DN (mm)||Weight (kg/m)||e (mm)||Ae (mm)|
Owing to many advantages over other types of materials, Polyethylene pipes are becoming increasingly popular with users. While they are easy to transport and install, they can be very well adapted to various requirements of the site of installation and have a low coefficient of friction, thus yielding low levels of pressure loss.
Laying in the ground is performed inside trenches at varying depths, taking into consideration the type of the pipe and the type of the supporting soil, in accordance with the engineer’s specifications. The minimum depth for underground installation of the pipes is 0.6 -1 m.
The pipeline is installed at air temperature of at least + 5°C.
Connections options include flexible joints (PE and PP connectors) and fixed joints (electro-fusion and butt welding).
|DN (mm)||İD (mm)||Weight (kg/m)||e (mm)||Ae (mm)|