For nearly 50 years, polyethylene (PE) has been used to transport fluids. Its ability to withstand harsh chemicals without corrosion and leak as well as the tight installation, polyethylene (PE) has been regarded as the ideal material for the gas industry. Additionally, PE joints offer leak-free connections which outperform other competing materials in terms of reliability and longevity, not to mention the remarkable savings on the installation costs and life of the materials. Improvements in the strength and performance of PE materials has resulted in water, chemical & several other industry needing solutions for liquid and gas transfer to adopt PE for its pressure transmission networks.

Polyethylene (PE) belongs is a thermoplastic from the polyolefin group. Polyethylene is the best known volume plastic a relatively high molecular form, with medium to high density, has established itself in the piping systems industry.

The most wide spread use of Polyethylene is for buried gas and water pipe lines. The polyethylene we manufacture has been effectively stabilized with carbon against UV radiation effects. The stabilization also serves to counteract heat fatigue, thus increasing life.

It shows superior impact strength as compared with PVC. PP is normally available in grey colour and its high rigidity makes visually pleasing pipe layouts possible and the lower coefficient expansion makes installation easier.

Polyethylene consists of long molecular chains (macromolecules). These molecules may be branched and the degree of such branching and the length of side chains have important effect on the properties of polyethylene. Polyethylene crystallizes as the melt cools. Parts of the long molecular chains arrange themselves by folding into very small crystallites which are joined together by amorphous regions to form macrostructures knows as spherulites. The shorter the chains and lesser the branching, the better the process of crystallization. The crystalline region has a higher density than the amorphous region and therefore different density values are obtained depending on the degree of crystallinity.

The three basic popular available type of PE are HDPE, MDPE and LDPE. LDPE grades have a very minimal role in pipe production and HDPE remains the dominant player in pipe manufacture. The Properties of polyethylene are primarily determined by density, molecular weight distribution. With increasing density (higher crystallinity), the following properties also increase: Yield Stress (tensile Strength), Modulus of Elasticity (Rigidity), Hardness, Solvent Resistance, Impermeability to gases and vapours. On the other hand, impact strength, transparency and stress cracking resistance decrease with increasing density.