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10th July 2013, 03:21 PM
PE pipe (http://www.parsethylene-kish.com/separsekish/default.aspx?page=document&app=documents&docid=11487&docparid=0) (polyethylene pipe (http://www.parsethylene-kish.com/separsekish/default.aspx?page=document&app=documents&docid=11487&docparid=0)) enables the world’s underground infrastructure to have a backbone that is cost-effective, strong, durable, long lasting, easy to install (http://www.parsethylene-kish.com/separsekish/default.aspx?page=Document&app=Documents&docId=11915&docParId=11470) and secure. But within the world of PE materials only certain grades are “pipe-worthy.” Just like there are different grades of metal and concrete used in various applications, there are different kinds of PE designed for myriad industrial and consumer applications. And there are different grades within these application categories.
So how do you know that the pipe you need is made from the right PE material for your specific pipe application?
First a little background. The Imperial Chemical Company of England formulated and first produced polyethylene plastic resin in 1933. It was, however, a costly process. During the next 20 years, chemists in the petrochemical industry continued to advance the manufacturing process to diminish costs while yielding better grades of PE. In the early 1950s, chemists at the Phillips Petroleum Company developed an economical process and delivered a new grade of PE called high-density polyethylene, also known as HDPE. At that time it became possible to create various grades of PE and soon the resin was being used in a wide variety of products and applications.
The first use of PE was for baby bottles. Using PE instead of glass was the start of PE replacing traditional materials due to its improved physical properties. In this instance it didn’t break like glass, it was less expensive to produce and it was safe for mother’s milk or formula. Today, PE has not only replaced glass for bottles (including milk and shampoo) but also metal for pails, drums, gas tanks and a host of other applications.
For pipe, the grade of PE used now is very different from early generation materials, and even very different from other PE materials used in today’s consumer applications – like packaging, film, bottles, etc. Pipe grade PE is a highly engineered compound that is designed for long-term service in critical applications and put through a series of rigorous testing procedures before it is available for manufacturing
Read th efull text from here (http://www.parsethylene-kish.com/separsekish/default.aspx?page=Document&app=Documents&docId=11924&docParId=11470).
So how do you know that the pipe you need is made from the right PE material for your specific pipe application?
First a little background. The Imperial Chemical Company of England formulated and first produced polyethylene plastic resin in 1933. It was, however, a costly process. During the next 20 years, chemists in the petrochemical industry continued to advance the manufacturing process to diminish costs while yielding better grades of PE. In the early 1950s, chemists at the Phillips Petroleum Company developed an economical process and delivered a new grade of PE called high-density polyethylene, also known as HDPE. At that time it became possible to create various grades of PE and soon the resin was being used in a wide variety of products and applications.
The first use of PE was for baby bottles. Using PE instead of glass was the start of PE replacing traditional materials due to its improved physical properties. In this instance it didn’t break like glass, it was less expensive to produce and it was safe for mother’s milk or formula. Today, PE has not only replaced glass for bottles (including milk and shampoo) but also metal for pails, drums, gas tanks and a host of other applications.
For pipe, the grade of PE used now is very different from early generation materials, and even very different from other PE materials used in today’s consumer applications – like packaging, film, bottles, etc. Pipe grade PE is a highly engineered compound that is designed for long-term service in critical applications and put through a series of rigorous testing procedures before it is available for manufacturing
Read th efull text from here (http://www.parsethylene-kish.com/separsekish/default.aspx?page=Document&app=Documents&docId=11924&docParId=11470).