Polyester pipe is a tube-like product from fibreglass reinforced resin, the common name of which is GRP, FRP or fibreglass pipe. By combining fibreglass, thermostable resin and special fillers in appropriate quantities, it is possible to produce pipes with a wide span of physical and chemical properties, resistant to aggressive media and temperature from -60 ºC to +120 ºC, which results in their diverse application.
Polyester pipes are produced from non-corrodible materials, which provides a whole range of advantages:
✔ Lesser pipe weight (1/4 of the cast iron pipe weight or 1/10 concrete pipe weight),
✔ Extreme wall smoothness,
✔ Unnecessary cathode protection,
✔ Unnecessary lining, coating, and painting,
✔ The ease of connecting and assembly at the same time means less time to install,
✔ Enabled flexible replacement of the pipeline axis,
✔ Low maintenance costs,
✔ Low transportation costs since the pipes can fit one into another,
✔ Hydraulic properties remain unchanged for a long period of time, which means a long and efficient life,
✔ The high quality properties of the pipes conform to the world wide standards,
✔ Quality ensured for all kinds of application.
|*Pipes produced by discontinual filament winding|
Pipe stiffness is the capability of pipe to take over the upper-part load due to earth and traffic, as well as the internal negative pressure. Polyester pipes are delivered with the following tangential initial stiffness (STIS) EI/D3.
Standard length of polyester pipes is 6m and 12m; nevertheless, pipes can be delivered in other dimensions upon buyers’ request.