Why Polyethylene (PE) Is Used In High Pressure Pipes – Plastic Molding Processes
Polyethylene is taking plastic to newer grounds and applications that are possible through the commercial process called the Ziegler-Natta catalysts that made PE such a success since it was developed in the 1950s. Polyethylene is a thermoplastic polymer with variable crystalline structure and an extremely large range of applications depending on the particular type. It is one of the most widely produced plastics in the world and is used in several plastic molding processes. The wide array of its productivity comes from its variety of crystalline structures that are namely the high-density and low-density form factors. Then there is the Ultrahigh Molecular Weight Polyethylene (UHMW) structure that makes an extremely dense version of polyethylene with molecular weights typically an order of magnitude greater than HDPE. It can be spun into threads with tensile strengths many times greater than steel and is frequently incorporated into high-performance equipment like bulletproof vests.
HDPE to RTP for high-pressure pipes
Oil and gas companies and mining companies seeking cost-cutting measures are actively considering high-density polyethylene pipe as a money-saving alternative.
Reinforced thermoplastic pipe offers the advantages of corrosion resistance and is already being used in moderate temperature and pressure applications.
Features that make RTP desirable for the job
The unreactive nature and long life that is promised by the RTP based pipes along with low maintenance including leak-proof joints and zero allowed leak rates make it the best in class till date.
Some of the main properties of RTP pipes include;
- Polyethylene pipe is rustproof, break-resistant and corrosion-free.
- PE pipe can withstand harsh chemical environments.
- PE pipe is semi-rigid to withstand high external loads. Its flexible nature expands with pressure a surge that increases the life of the pipeline.
- Lightweight PE is easily installed without heavy lifting equipment. Alternate installation methods (Horizontal Directional Drilling, Pipe Bursting, Slip lining, Plow and Plant, Submerged or Floating Pipe, etc.) can save considerable time and money in most applications.
- PE pipe is produced in straight lengths up to 50 feet long and coiled in diameters up through 6-inches. Coiled lengths over 1,000 feet are available depending on size.
Hence, it is these really the various structural characters of polyethylene which still holds it’s structural Integrity that makes it a host of desirable traits for all kinds of projects. However, the heavy laden steel pipes used across the different industry are seeing a revolution with the introduction of RTP and are performing leagues ahead of its predecessors.