Since plastic materials are often used for storing and processing corrosive stuff like acids, the consequences of a failure can be devastating. GRP pipe manufacturers would like to share details on non destructive testing of GRP laminates through this article. How to inspect GRP laminates and how NDT tool helps in the job is explained well in this post.
Non destructive testing or NDT tool is essential for inspecting GRP pipes and tanks. Earlier, NDT methods for field use have not been completely intended for adequate precision. Today, many modern facilities are running procedures for several testing methods of GRP laminates. It includes-
It is done with a portable digital imaging unit. The results are processed instantly and evaluated in digital computer. The equipment is user-friendly and small-scale.
Ultrasonic testing is used for detecting delamination and corrosion. The structure of GRP material can make the use of ultrasound complex.
To standardize and enhance the process of visual inspection, professionals take help of tool to detect the most common defects. This allows experts to distinguish manufacturing defects from others that have been appeared during operations.
With the help of these three NDT methods, it is possible for the manufacturers to comply with available regulations, even if the component is made of GRP material.
The inspection of welds and joints is also important for ensuring safety and quality of newly commissioned plants prior taking the ownership from the owner or contractor of the site. NDT plays critical role in the inspection.
Advantages of NDT of Glass fibre reinforced laminates-
GRP pipes are applied in following industries:
GRP pipe manufacturers have shared their best knowledge about NDT methods used for testing GRP laminates. The three techniques – radiography, ultrasonic and visual inspection are widely popular and are used by modern facilities to test GRP laminates. If you want to explore more about this topic, you may do research online.
Thermoplastics are specialized materials that can be re-heated and molded in several shapes. GRP pipe manufacturers use them to fabricate piping systems and other GRP profiles for industries. In this post, they will explain different thermoplastics and their advantages, disadvantages, and uses.
These plastics share common property, they soften when heated and are generally used in schools to vacuum form shapes.
1. Acrylic: It is the most commonly used plastic in a workshop of the school. It is available usually in the form of sheets in different colors. It can be transparent, translucent, or opaque. Acrylic is resistant to many acids and weather conditions.
2. Polyethene: Polyethene can be molded into any possible form and the credit goes to its excellent molding features. Manufacturers prepare large sheets and use polyethene for the production of a variety of products due to its dual densities- high density and low density.
3. PVC: PVC is a tough composite material that can be either availed as hard material or a flexible form. PVC can be bonded or welded with an adhesive.
You can avail PVC pipes and similar products from GRP pipe manufacturers. Make request here in comments and talk to professionals.
ipes like pressure pipes, sewer pipes, drainage pipes, industrial pipes, etc. are the products supplied by frp pipe manufacturers. These products are being made at manufacturing unit using Helical Winding Method. This method is most flexible one as manufacturers are able to produce different sizes of pipes at a time on the same machine. The engineers use GRP/FRP materials for production of FRP and GRP pipes. These materials are fed to computer controller winding machine. The operator starts the programme for specific pipe and the machine winds the pipe accordingly.
In this post, we will discuss different phases involved in the processing of FRP/GRP pipes.
First and foremost thing done by manufacturers is preparation of mandrel. Mandrel is cleaned and polished before its use. Once it is cleaned and polished, a thin film is wrapped across the mandrel to achieve better inner surface finish. This will help releasing of pipe smoothly and easily from mandrel.
Nin next stage, manufacturers apply a resin layer on the mandrel. After that, multiple layers of resin is being applied with glass surface mat and chopped strand mat.
During helical winding process, continuous strands of closely spaced glass fibers are wound over the cured liner with computer controlled machine. Manufacturers perform winding pattern with pre-programmed machine to achieve the required thickness in the piping.
Once the filament winding process is done, manufacturers put the mandrel for curing up to 1-2 hours. The timings depend on the weather condition.
When manufacturers are done with the curing process, the product is released from mandrel by hydraulic extraction machine.
When the pipe is removed from mandrel, a final layer of resin is applied by manufacturers with UV stabilizer.
After finishing the final layer with UV stabilizer, manufacturers cut the both rough ends of the pipe and calibrate them for coupler jointing. They prepare them for hydraulic testing and send the quality assured products to finished goods department.
These are critical phases involved in the process of manufacturing of pipes. FRP pipe manufacturers are performing every step with concentration to avoid making mistakes. If you need more information about these phases, ask your manufacturer and supplier today. To know more about FRP pipes and GRP pipes, write your requirements in comments below.
Fiberglass-pressure adsorbers are resistant to several chemicals. FRP storage tank manufacturers use FRP-series liquid phase adsorbers where corrosion is their sole concern. These units have 150 psi rating that reveals that these can be used in high pressure applications. You must protect your FRP vessels from vacuum conditions by using vacuum breaker in the line.
Manufacturers intend FRP series tanks in several sizes to handle a comprehensive range of liquid flows. They craft the filament wound vessels with an internal bladder wrapped in fiberglass, which made them ideal product for filtration. They use activated carbon, resins, or other filtering media to design the filters. Food grade internals are standard along with vast variety of inlet/outlet sizes.
Installation of FRP adsorbers in the tanks
FRP adsorbers are transported empty along with the required carbon. Experts should connect the adsorbers and test all fittings pressure to determine leak points before installing the carbon through the top access hole.
A vacuum relief device is used to prevent damage in the tank. Once the carbon is loaded, clean water should be released to the unit through the bottom collector. Experts recommend backwashing the carbon to remove the carbon fines that may result in excessive pressure drop through the unit.
All liquid phase adsorbers work great when they are backwashed periodically. Backwashing removes the fines and channel flow. Apart from this, extra maintenance can be done by testing the effluent quality and checking the operating pressure of the system will help in achieving great results. Experts always recommend monitoring the containment level into the last unit to safeguard the unit against failure.
Over time adsorber’s carbon is saturated by dirt and contaminants. It is advisable to take off the unit and replace the saturated carbon with fresh one. You can easily get a fresh carbon from the store of supplier, who is already offering related products.
When preparing the unit for service, drain the water as much as possible from the vessel. Bring experts to service your tank and those who can install the carbon to it.
FRP storage tank manufacturers would like you to note down a thing- wet activated carbon expels oxygen from air. This causes a severe hazard to workers inside carbon vessels. It is necessary to put confined space/low oxygen procedures prior entering to the vessels. All guidelines should be followed by the team for best results.
No doubt traditional materials are recognized for their benefits and uses. But, the harsh, corrosive environments have made FRP gratings India as a perfect partner for all. There are several reasons that explain the interest of industrial clients in FRP gratings. We will also explain use of FRP gratings in this post. Keep reading to know about FRP gratings.
FRP composites resist a broad variety of chemicals and remain unaffected or undamaged. Painting is the only maintenance tip suggested by experts to protect the FRP composite materials against UV rays.
Steel is subject to oxidation and corrosion. You have to paint the steel surface to protect it against harsh weather conditions. Still there is no surety that there will be no damage.
Aluminium can cause galvanic corrosion.
Wood can rot, warp, decay when exposed to water, moisture, and chemicals. Wood is even prone to attack by bugs.
FRP composites have greater flexural strength as compared to timber. The profiles made of FRP materials are stronger than steel and aluminium. It has ultimate flexural strength – LW – 30 ksi, CW – 10 ksi.
Steel is a homogeneous material and its yield strength is 36 ksi.
Aluminium is also a homogenous material having flexural strength – 35 ksi.
Wood is a natural material that has modulus of rupture – 12,000 psi.
FRP composites weigh 75% less than the steel ones and 30% less than aluminium.
You may need to lift steel products to move and locate.
Aluminium is lightweight- about 1/3 of the copper or steel weight.
Wood has specific gravity of 0.48.
FRP composite materials are non conductive.
Steel and aluminium conduct electricity and have grounding potential.
Wood can be conductive if wet.
FRP composite products never permanently deform under impact.
Steel can permanently deform under impact.
Aluminium is easier to deform under impact as it is softer than steel.
Wood can permanently deform or break under impact.
Since manufacturers of FRP gratings mold the colors through the product, there is no painting required for such products. You can avail them in different colors.
Steel has to be painted if you want it to be colored and may require re-painting over time.
This is how FRP gratings India make huge difference even if the traditional products are available. Manufacturers and industries prefer FRP over any other material due to its resistance and durability.
Fiberglass is a renowned material used by fiberglass products manufacturers as it has durability and efficient energy saving features. Products made of fiberglass resist the heat and cold transfer and thus, windows made of fiberglass are ideal choice for interiors. Picking fiberglass windows and doors for home can make a significant difference to your heating and cooling bills.
Other than energy efficiency benefits, fiberglass is a durable material and maintenance free. You just require a water-soap mix to wipe the surface of fiberglass windows and doors and this will make them new again. Unlike aluminium, wood, vinyl and other materials, fiberglass products never rot or corrode. It is less likely to crack or deform even under extreme conditions.
More benefits of using fiberglass windows and doors are here:
All these benefits are shared by fiberglass products manufacturers with global readers. If you think they have skipped any point or benefit, write in comments. Share more details about frp products range with other readers in your comments. Thanks in advance.
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