GRP (Glass reinforced plastic) pipes are made up of a composition of at least two raw materials which are chemically compatible with each other so that the benefits of each material combine with the other to produce the desired outcome.
These pipes are a combination of thermosetting plastics like chopped glass fibres and reinforcing agents, unsaturated polyester or vinyl ester raisins which make it strong and durable. It is impossible to imagine today’s life without these GRP pipes, owing to their increased demand as well as their several benefits.
There are a number of steps involved in the manufacturing of these highly demanded pipes, like: preparation of mandrel, preparation of the lining and curing them, winding of the filament, curing the pipeline, extraction of the pipes from the mandrel and then the ultimate layer of UV stabilization. Once the UV stabilizer is established, the uneven ends of the pipe are cut and smoothened at both the ends for preparing the joints and sealing.
Then these pipes are sent for hydraulic testing. These pipes go through a series of tests both from the manufacturer as well as third party specialists before they hit the market. Due to the increased oil and gas drilling, the usage of GRP pipes is on the rise.
Areas where these typical plastic-fibre combination is greatly used are stated below:
- Aerospace Industry -mainly the tail units and panels are of GRP.
- Hydroelectric power generation – GRP wind turbines ensure more power units as compared to others.
- Sewage and water transportation – Both domestic and industrial water transportation as well as sewages involve GRP in pipes, tanks and manholes to ensure fast and smooth delivery. The joints, turns and fittings are manufactured such that they are able to withstand the pressure and do not cause leakages or other damages.
- Irrigation – For watering lands and crops on farmlands, GRP pipes are used extensively.
- Corrosive and Non-corrosive chemicals – Especially in petroleum industries and pumping stations, GRP pipes are used which remain unaffected by the harmful chemicals passing through them. This is because GRPs are made up of plastic-fibers which are produced such that they are compatible with the fluids or semi-fluids passing through them.
Why GRP is preferred
Let me take you through some of the factors which make GRP pipes one of the most used and preferred ones.
Its rust free which means the outer surface is less prone to damages, which gives a long shelf life of about 50 years.
The inner pipe surface is so smooth that it reduces friction and loss of pressure, which makes the water flow hygienic.
Tight and low weight
These pipes being too light with tight bends makes it being installed at a high rate even in less accessible zones (especially the low terrain ones) in possibly all weather conditions.
There are very few coupling and sealing areas in these pipes which make their installation quite easy.
The lengths of GRP pipes can be adjusted quite easily as per requirement on the sites.
Before hitting the markets, these pipes are tested by the manufacturers as wells as third parties specializing in testing of the material properties, their durability, strength and other factors. So rest assured, you won’t get a damaged pipe!
The low operating and maintenance cost of the GRP pipes , their easy accessibility coupled with their compatibility with other materials which these pipes have to endure as well as their high load taking capacity makes them the most preferred ones by the engineers. To add on, they are also UV resistant.
GRP pipes are available in different sizes with different pressure endurance levels, based on the requirement which comply with various domestic and international standards so, go ahead and get the GRP pipe from the market of your choice.
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