Advantages of GRP pipes instead of polyethylene and concrete pipes
Topic: Advantages of GRP pipes instead of polyethylene and concrete pipes in the industry of sewage transmission and drinking water network
GRP pipes can be used instead of simple and double-walled polyethylene pipes, carrogate or spiral in the water and sewage transportation industry.
The advantages of this pipe compared to PE pipes are as follows:
Important: According to the latest research, the lifespan of GRP pipes is at least 150 years, and according to the new standard of pipes, it is at least 100 years.
A- The stiffness of these pipes is 8 times the stiffness of PE pipes, and for example, a GRP pipe with a stiffness of 10 kilopascals is equivalent to a polyethylene pipe with a stiffness of 80 kilopascals, in other words, a GRP pipe is 8 times the pressure of a PE pipe. To withstand the external load caused by dead and live loads.
explain :
1- The standard maximum stiffness of GRP pipes is 10 kilopascals and the maximum standard stiffness of double-walled PE pipes is 32 kilopascals, while the number 32 becomes 4 kilopascals after converting the standards (division by 8) which is also in the country It is not accessible.
2- In addition, PE pipes can only be produced up to 4 kilopascals (32 kilopascals according to DIN 16961 standard) in the world, and this amount is only available in Iran up to 2 kilopascals (16 kilopascals according to DIN 16961 standard).
3- GRP pipes can easily be produced up to 80 kilopascals (10 kilopascals according to ISO 7685 and ISO9969 standards) and they can be buried up to 16 meters deep underground.
Therefore, to install GRP pipes, there is no need to dig tunnels with a large diameter, and there is no need for Chinese chairs and roofing with wooden beams.
B- The installation and connection of these pipes can be done quickly and easily, and there is no need for butt welding in these pipes.
C- The ring stiffness of these pipes remains constant for about 100 years, while the ring stiffness of PE pipes decreases with the increase in life, and in less than 10 years, under the pressure of the soil, they gradually become double-wide and oval, and even their wall collapses. to be
D- The advantages of these pipes compared to asbestos or concrete pipes do not need to be explained and it is very clear that the cement that forms the raw material of the mentioned pipes has no resistance against the inorganic sulfuric acid present in the sewage and it dissolves quickly. .
E- For transporting drinking water, asbestos, concrete and metal pipes are unsanitary due to the presence of asbestos particles and eroded particles and iron rust in them.
F- GRP pipes provide the same resistance at 40 degrees below zero as they do at 50 degrees Celsius above zero, while PE pipes become very brittle and brittle at 5 degrees and below.
G- Experience has shown that PE pipes in the country are not produced from the best materials and they often rot quickly against water and sewage, while the products of this company have sufficient guarantees.
In conclusion, it is hoped that the respected official will use this new product, which is considered the world's most advanced technology, in water and sewage transfer projects.
God willing
Thanks a lot
Engineering unit for the sale of gravity GRP pipes