Technical discussion: Are glass fiber pipes that strong?
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This post was last edited by hesonchang214 on 2011-4-20 at 12:17. Today we met with a manufacturer from Hebei who sells fiberglass pipes. He said that the water supply pipes in ** are made of fiberglass; they have a diameter of 2.2 meters and were installed in 1965. They are still in good condition to this day, which seemed incredible to us, but the manufacturer was absolutely certain about it. Let’s discuss it – is fiberglass pipe really that strong? How many years has it been in use there?
Fiberglass is indeed a good material in theory, with a lifespan of around 50 years. However, due to competition in the domestic furniture industry, manufacturers have added various additives in an effort to reduce costs, which has led to a decline in its quality and resulted in its current poor reputation.
I haven’t seen such strong glass fiber pipes in a long time either; if you know any, please introduce them to me, hehe
Today we met with a manufacturer from Hebei who sells fiberglass pipes. He said that the water supply pipes in ** are made of fiberglass; they have a diameter of 2.2 meters and were installed in 1965. They are still in perfect condition to this day, which seemed incredible to us, but the manufacturer was absolutely certain of it. Let’s discuss it – is fiberglass pipe really that strong? How many years has it been in use there? Reply to the original poster: The fiberglass pipe from Shenzhen to ** was installed in 1965, so it certainly wasn’t manufactured in China. China’s equipment for winding fiberglass pipes was introduced from Italy at the end of the 1980s. Buried fiberglass pipes can last more than 50 years, but it’s uncertain whether their joints will have the same lifespan as the pipes themselves.
Reply to 4# Rotating arm: What do you mean by the joint?
Fiberglass water transmission pipes are mostly sealed using rubber “O” rings, and the quality of these rubber rings also determines the lifespan of the joints.
Glass fiber reinforced plastic is not yet widely used in water pipes; it is generally employed only in cases where the medium is corrosive, such as acids, alkalis, and salts. Moreover, glass fiber reinforced plastic is quite brittle, and its strength is inferior to that of carbon steel.
Sand-laminated glass fiber pipes are well-established for use in tap water and sewage systems, and can last for 50 years. However, the market is currently quite chaotic, which leads to inconsistent product quality; therefore, it is necessary to choose manufacturers carefully.
There is nothing wrong with the glass fiber pipe itself; the problem lies in the fact that some of these pipes are connected using adhesive, which makes those areas prone to failures and leaks.
This post was last edited by yzhang2010 on 2011-8-26 at 17:52. It has a diameter of 2.2 meters and was installed in 1965; it definitely isn’t of Chinese origin. China’s first microcomputer-controlled fiberglass-reinforced plastic pipe was produced in Jizhou, Hebei, at the end of the 1980s ； The earliest fiberglass-reinforced plastic pipes were produced in the United States in the 1950s, and they are still in use to this day; therefore, the theoretical service life of fiberglass-reinforced plastic materials is over 50 years ； FRP sand-filled pipes are a good product, but if manufacturers do not follow proper design standards, problems can still arise. Those who need information in this area can contact me. chnhebfrp@126.com
I don’t know what kind of wastewater can corrode cement?