Why Do You Need The FRP Pipe?

 

 

FRP pipe, also called fiberglass reinforced pipe, is a light, high-strength, and corrosion-resistant non-metallic pipe. With its excellent chemical resistance, light weight, high strength, non-scaling, strong shock resistance, long service life compared with ordinary steel pipes and cast iron piping, low overall cost, fast installation, safe and reliable, it is accepted by users. The application fields of fiberglass reinforced pipe involve industries such as petroleum, chemical industry, and sample water.

 

What is FRP (GRP)?

FRP, another name for GRP, is commonly known as glass reinforced plastic. It is a high performance material formed by mixing fiber material and base material in a certain ratio, which is light and hard, non-conductive, high mechanical strength, and corrosion resistant.

 

What are the characteristics of FRP Pipe?

► 1. The coefficient of development of products is comparable

The coefficient of thermal expansion of the FRP composite product resembles that of concrete. When the ambient temperature level changes, FRP and concrete work in harmony, and also no big temperature level anxiety will certainly be created between them.

► 2. High tensile stamina

The tensile stamina of FRP is considerably more than that of steel, and also the tensile toughness of high-strength steel wire has to do with the exact same, usually 2 to 10 times that of steel.

► 3. Lightweight

FRP product is lightweight and also high toughness, so it can reduce the weight of the framework as well as assist in the construction. Its weight is normally 20% of steel. When it is utilized in a huge span structure, it can substantially lower the weight of the structure.

► 4. Manufacturing facility production, assembly, and also building

FRP is a fabricated product, which can be made with different toughness indexes, elastic modulus as well as unique efficiency requirements according to the job requirements, such as fiber material of various fiber materials and laying techniques. Factory manufacturing and also on-site installation contribute to making certain tasks top quality, boosting labor efficiency as well as understanding construction automation.

► 5. Rust resistance

FRP material has great corrosion resistance and exhaustion resistance. It can be used in acid, antacids, chlorine salt as well as a moist environment for a long period of time. Thus, the life span of the structure can be boosted. This is hard to compare to the general structure products.

► 6. Practical forming

The manufacturing procedure of FRP consists of pultrusion, winding, hand gluing, injection molding, and also various other techniques. It is not only possible to produce normal shaped FRP products widespread, but likewise to generate nearly approximate designed sheets for creating non-linear structure forms.

 

We are an FRP pipe supplier, please feel free to contact us if you need them.

FRP pipe performance and characteristics

(1) Light and high, easy to transport and install (<20% of steel, 10% of concrete)

The specific gravity of FRP pipe is 1.7-1.9. Compared with other material pipes of the same pressure and caliber, the weight of FRP pipe is about 30% of that of steel pipe, so it is very convenient for transportation and installation. The length of each FRP pipe can be up to 12m, which is quick and easy to install. In addition, it can also eliminate the welding, rust prevention and anti-corrosion treatment required for steel pipe installation. The weight of the pipe is only 1/4 of that of ductile iron pipe and 1/10 of that of cement pipe, which is convenient for transportation and unloading and easy to install. The installation technology of FRP pipe is mature, convenient and fast, reducing pipe joints, speeding up the installation and improving the quality of the whole pipe

 

(2) Corrosion resistance.

Perhaps the main reason for using fiberglass reinforced plastics (FRP) is because of their inherent corrosion resistance. In many cases, they are the only material that can handle a given service environment; in other cases, their corrosion resistance combined with their economics make them the most economically acceptable solution.The corrosion resistance of FRPs is a function of the resin content and the specific resin used in the laminate. In general, the higher the resin content, the more corrosion resistant the laminate.

 

Chemically inert materials with excellent corrosion resistance and different corrosion resistant pipes are available for transporting media. The conventional thickness of the corrosion-resistant layer is 5 mm. the resin content is greater than 90%, which mainly plays a role in corrosion and leakage prevention. The choice of resin is based on the use of different types of resin. Resistant to acid, alkali, salt, seawater, untreated sewage, corrosive soil or groundwater and many chemical liquids

 

(3) High mechanical strength and designability

Good resistance to internal pressure, external pressure, and impact resistance, allowing the design and manufacture of pipes and fittings to the required pressure. The anti-corrosion layer can improve the use of FRP pipes under various conditions by adding wear-resistant materials, anti-static materials, flame retardant materials, etc.

 

The specific properties and shapes of the wound FRP pipes can be designed according to the specific use conditions.

① The winding angle when winding can be designed so that the FRP pipe has different longitudinal/circular strength distribution.

 

②The wall thickness of the FRP pipe can be designed so that the FRP pipe can withstand different internal and external pressures.

 

③Materials can be designed to achieve different corrosion resistance, flame retardancy, dielectric properties, etc.

 

④The front-end way can be designed to adapt to different installation conditions and improve the speed of project installation.

 

(4) Strong temperature adaptability

Operating temperature range: greater than -70 degrees Celsius, less than 180 degrees Celsius, can be used normally, the pipeline does not crack in the frozen medium.

 

(5) Small fluid resistance

The inner surface of FRP pipe is very smooth, the roughness coefficient is small, and the hydraulic coefficient C can be maintained in the range of 145-150 for a long time. Tested, the water friction loss coefficient f is 0.000915, which can significantly reduce the fluid pressure loss along the way and improve transportation. Capacity in more than 20%. Reduce the flow resistance, increase the flow rate and reduce energy consumption. Use smaller diameter pipe to transport the same flow of fluid, than the same size of steel pipe can improve the flow rate of about 10%; it will not scale and reduce the flow rate after long-term use. Excellent protection for cables in disturbed and heavy corrosive environments.

 

(6) Maintain water quality

The material is non-toxic. FRP pipe is made of resin as the base, glass fiber as the reinforcing material, after a special process to ensure the hygiene and non-toxic, smooth inner wall does not accumulate, does not breed microorganisms, to ensure the quality of the fluid, does not affect the water and other media to produce secondary pollution and transport drinking water, can maintain long-term water quality and hygiene. Water transmission FRP pipe adopts food-grade resin, and the testing indexes all reach international standards.

 

(7) Widely used, good weather resistance

FRP pipes have good weather resistance and are suitable for harsh environments such as deserts and saline lands.

 

(8) Material selection

Resin selection: The matrix resin is made of epoxy vinyl resin and phenolic vinyl resin. The fiber is alkali-free fiber or ECR fiber. Meet various anti-corrosion requirements.

 

(9) Low maintenance cost

The service life of FRP pipe can be more than 50 years, which greatly reduces the maintenance cost. Since FRP pipes have excellent corrosion resistance, abrasion resistance, frost resistance and pollution resistance, there is no need for rust prevention, pollution prevention, insulation, insulation and other measures and maintenance. Buried pipes do not need cathodic protection, which can save more than 70% of maintenance costs.

 

(10) Color

The appearance color of FRP pipes can be made into various colors according to the requirements of customers. The color of appearance can be changed by spraying gel coat resin to adapt to various use environments, with neat and beautiful appearance and vivid colors.

What are the Benefits of Using FRP?

 

 

FPR materials are indispensable for building construction. What are the specific benefits of using it? Read on for more information.

 

1. Weight

 

Going hand-in-hand with a quicker setup time is FRP's weight. FRP is known for being light-weight. As a matter of fact, it has to do with eight times lighter than enhanced concrete-- indicating FRP is likewise less labor-intensive to use and also mount, and also requires less tools. This material likewise calls for less labor during removal processes. See below to compare the total weight of FRP to the overall weight of precast concrete.

 

As you can see from the graph, FRP is considerably lighter than precast concrete, with an FRP panel weighing regarding 5,000 pound and a precast concrete panel weighing almost 41,000 lb. Using a lighter material makes it easier on your workers, saves money on labor prices, as well as places much less stress on the framework. The lower the weight of the material being utilized, the much less wear and tear the facilities will certainly experience all at once.

 

2. Production and Installment Time

 

When developing the design for your general facilities strategy, it is very important to consider the amount of time that will certainly be required not just for the whole job, however likewise for each and every step within the process. Obviously, saved time translates to saved costs, but you certainly do not wish to give up high quality for effectiveness. FRP can provide an ideal balance, helping to conserve useful manufacturing time while still giving the needed quality, strength, and sturdiness. Listed below, compare the manufacturing as well as installment time of FRP to that of precast concrete:

 

As you can see from the graph, FRP's overall manufacturing time is 15 days less than that of precast concrete. This converts to more than 2 weeks' worth of conserved labor costs and also total downtime for facilities advancement. FRP additionally requires much less complete installation time than precast concrete-- nearly five days less, generally.

 

Thanks to this much shorter installment time, engineers using FRP don't need to complete their job exclusively throughout the workweek. Rather, they can opt to do installment work with the weekends, as well, when there is less traffic jam and also end users will experience less inconvenience as well as less disruptions to their commutes.

 

3. Repair

 

FRP frameworks are very trusted and also low-maintenance, but they should not be thought about maintenance-free-- fixings calling for area solution will certainly require to be done on rare events. Executing yearly regular examinations (at minimum) will assist guarantee prospective issues can be caught before they become an issue. If a concern has been recognized and reported (ex. fractures, crazing, staining, too much wear, etc), a field solution technician will be sent to complete the repair work.

 

As mentioned, frameworks made from steel, concrete as well as wood are prone to routine repair work, along with those made with brick and also tile-- that's also where FRP can be found in. Fiberglass can be made use of for patch fixings on bridge outdoor decking as well as linings can be put on culverts, pumps, tank and also pipes to shield less-resistant products from future damages. FRP can also be utilized for wrapping bridge piers and also columns.

 

Repair work made with FRP add up to long-term cost financial savings. Because the product is corrosion-resistant and has a lot longer life span, it's a wonderful alternative to make use of when fixing as well as shielding existing frameworks. Take a look at our brief case research for more information concerning exactly how FRP repairs decrease prices.

 

4. Rust and Maintenance

 

Offering high toughness as well as strength, in addition to dependable resistance to deterioration, FRP is resilient and minimizes the need for ongoing maintenance. The lack of constant maintenance and repairs aids to reduce costly labor as well as product expenses and likewise stops trouble to end users, given that repair service downtime is reduced.

 

And, given that FRP is durable and immune to corrosion, the long-lasting expenses end up being much less as well.

 

Though FRP does have a slightly higher price point per square foot at initial setup, the material permits several advantages in regards to long-term cost savings. Since FRP causes less stress on the framework as well as is much more resilient than various other products, it decreases the demand for costly fixings or reconstruction in the future. For example, bridges as well as platforms constructed from products such as strengthened concrete, steel, or timber often break down 15 to two decades after preliminary installation-- needing incredibly pricey repair work or even an entire brand-new investment to rebuild from the ground up. FRP, nonetheless, is built to last as well as will not experience deterioration in time like several other construction products.

 

We are an FRP pipe manufacturer, please feel free to contact us if you need them.

FRP Pipes: The Best Choice For Water And Wastewater Treatment

 

 

With the aging facilities, federal governments and also districts across the globe face a big task of changing the pipe facilities with the ideal materials providing a life span most likely going beyond 100 years. And also FRP pipes are our finest option to change standard sewage therapy pipes.

 

Why do we require FRP pipes?

 

What veins and also arteries are to our body, are water and wastewater pipelines to infrastructure. Think of spending a day without water. From bringing potable to our home to dealing with household and commercial wastewater successfully, these pipes do tasks quintessential to using a hassle-free income.

Over the past 100 years, global water usage has actually increased by an element of 6. With the constant increase in populace, financial advancement, and moving usage patterns, global water usage is growing at a steady rate of 1% annually.

The most usual materials for the manufacture of water and also wastewater pipes are metal (cast iron, ductile iron, steel, and copper), clay and also concrete pipe (glazed clay, strengthened concrete, as well as asbestos concrete), and plastics (PVCs, HDPE, as well as fiberglass).

The most usual pipeline size for water mains varies from 6 to 16 inches. Branch lines giving service to residences, workplaces, and structures vary from 0.5 to 6 inches. Sewers, which lug wastewater and also stormwater have diameters surpassing that of water mains.

For a long, metals as well as concrete have dominated water as well as wastewater applications.

 

Application of FRP pipes

 

Picking the right kind of pipe product and also dimension is of critical relevance and also depends upon numerous variables including yet not limited to the application, water pressure, running temperature level, as well as nature of fluid going through the pipe.

While FRP pipes have been in usage for a long, they have actually located a bigger acceptance not long ago, and also have emerged as one of the most popular alternatives to conventional pipelines, such as steel, concrete, and also plastics, in water/wastewater applications.

FRP Piping is majorly made by the filament winding procedure. The filament winding procedure makes use of constant glass hair roaming impregnated with polyester material which is helically wound on a rotating mandrel at a specified winding angle. The roving is wound constantly in bi-directional layers up until the wanted wall surface thickness is accomplished.

While FRP pipes are primarily manufactured utilizing polyester material strengthened with glass fibers, a smaller portion of them additionally utilizes plastic ester and also epoxy depending upon the application demands.

Water/wastewater is a price-sensitive application as well as demands products at a competitive price. Polyester resin has the most affordable expense amongst thermoset materials consisting of plastic ester and also epoxy as well as uses superb chemical as well as corrosion resistance and also moderate mechanical, physical, and also thermal properties.

 

What makes FRP pipes ideal for water and wastewater applications?

 

Corrosion Resistance: FRP is an inert product offering excellent rust resistance, high chemical resistance, and also high weathering resistance.

Light Weight: FRP pipelines are extremely lightweight and also have an excellent strength-to-weight proportion. They consider 1/10 of concrete, 1/5 of steel, and also 1/8 of cast-iron pipes.

Longer Life Span: FRP pipes use a longer life span and also toughness with a much-reduced life cycle expense contrasted to steel, iron, and also concrete pipes.

Low Thermal & Electric Conductivity: FRP pipes have outstanding thermal protecting residential or commercial properties and do not need insulation. Besides water/wastewater, FRP pipes are likewise commonly utilized in chemical & industrial, oil & gas, and also marine & overseas applications.

Easy Installation: Being lighter than steel and also concrete, FRP pipelines use a faster setup and need lower installation in addition to upkeep expenses.

 

We are an FRP pipes supplier, please do not hesitate to contact us if you need them

FRP: Manufacturing and Advantages

 

 

FRP is a very beneficial building material. Many industries turn to FRP products once they realize the long-term financial savings.

 

How is FRP made?

 

FRP is a composite material that consists of a thermosetting resin matrix reinforced with fibers. In the early days of FRP, there were even some reinforcements made from paper, asbestos or wood. This is now obsolete due to its poor durability compared to carbon and glass.

Today, FRP can be purchased in a variety of compositions with different resins and fibers. The greater the amount of fibers, the stronger the FRP. Depending on the application, there are many different types of resins used to make FRP. These plastic resins can include：

Polyurethanes

Epoxy resins

Polyester fibers

Phenolic formaldehyde

Vinyl esters

 

What are the advantages of FRP? 

 

Advantages of FRP features

The fiber reinforcement adds elasticity and strength to a tough but still relatively fragile substrate. This allows it to be turned into a variety of complex structural shapes and platforms or sheets for a variety of applications.

Fiber-reinforced plastics are incredibly strong and exceptionally durable. And they are super resistant to impact and denting.

They can also handle climates and environments of the harshest nature, especially corrosive environments such as oil rigs.

It can be as strong as steel at a fraction of its weight.

 

 

Advantages of FRP structure

FRP products offer the same strength but also improved flexibility, durability, and resilience.

Because of the strength of fiber-reinforced plastic relative to other materials, ordinary polymers, thermoplastics, and other materials, and even metals such as aluminum and steel, cannot match it.

It is a fraction of the weight of its traditional counterparts.

Its elasticity and strength can even be scaled to suit your needs. This makes FRP a highly adaptable material that can be easily used in many different applications in many industries.

Shapes can be either contoured or rounded and can be provided with tight tolerances and uniform thicknesses. FRP can be manufactured into vastly complex designs using several combinations of geometric shapes. The thickness of the material can be adjusted from as little as 1/16" to 1/2" if desired.

 

We are an FRP pipe supplier, please feel free to contact us if you need them.

Common Leakage Of FRP Storage Tanks And Repair Methods

 

 

This article mainly discusses the common leakage phenomenon of FRP storage tanks and analyzes its causes. Eventually, we hope to find out the repair methods.

 

Bottom plate leakage

In general, the visual manifestation of bottom plate leakage is the corrosion phenomenon on the ground. At this time, we should first check the outside of the tank to find the leakage point and consider whether the damage of the tank is caused by the bump during the lifting process; secondly, we should consider whether the leakage is caused by the air holes inside the bottom plate due to the unqualified manufacturing process.

Solution: Open a manhole side window of about one person's shoulder width (diameter φ400) on the side of the tank, enter the tank to find the leak point, and reinforce the leak point and the entire bottom of the tank, the inner wall of the tank bottom upward within 1 meter of the all-around cladding for repair. After completion, fill with water and test for 48 hours without leakage to solve.

 

Flange Leakage

Flange leakage is generally caused mostly by defects in the production of the flange, as shown in Figure 3, the flange was found to be leaking drop by drop to the lower exterior.

Solution: The leaking flange will be cut and replaced, bearing in mind that when replacing the internal and external flange body and tank are required to wrap, and internal wrapping is completed to leave the tank inside the mouth to avoid blocking the flow of liquid.

 

Side window manhole bolt drip

If the tank comes with a side manhole, after finding the side manhole bolt dripping, you need to consider two problems: first, whether the bolt is not tightened or the gasket is damaged; second, whether the manhole flange has cracks.

Solution: Replace the gasket for the tightened bolt. If the problem is not found to be solved, remove the blind plate and find that the flange is cracked, the flange should be cut down and re-wrapped, and replaced.

 

 

In order to prevent the phenomenon of leakage, should do a good job of daily maintenance.

Maintenance of FRP storage tank

 

1. To prevent the work apparatus from hitting the tank wall. The use of ladders, metal parts equals the contact part of the tank wall to add soft pads to protect the inner wall from being scratched and bruised.

2. Enter the FRP acid and alkali tank maintenance, should first close all feed valves, empty and clean the tank. After testing to confirm that there is no toxic gas in the tank, no lack of oxygen to enter the tank. Enter the tank should wear soft-soled shoes, strap on the safety belt, and the other end of the safety belt tied to the top of the tank. Pay attention to the ventilation inside the tank. Into the tank operation, there must be personnel outside the tank under supervision.

3. Outdoor use of glass fiber reinforced plastic storage tanks will be used for many years due to aging of the outer surface layer, resulting in resin layer peeling or fiber exposure. It is recommended that every two or three years the outer surface of the tank should be painted or resin to prevent aging and extend service life.

4. FRP tank maintenance can not be loaded at will on the top of the tank but is also not allowed to apply external force on the receiver.

5. FRP tanks outside climbing ladders, cages, guardrails before climbing should be carefully checked whether safe and reliable, there is an abnormal situation is strictly prohibited to climb the use.

 

We are an FRP storage tank supplier, please feel free to contact us if you need them.

Do You Know The Differences Between GRP And FRP?

 

 

The term FRP is often used interchangeably when referring to GRP, a broader generic term more commonly used for engineering materials used in a wide range of industrial applications. The term FRP is often used interchangeably when referring to GRP.

 

What is GRP?

 

GRP stands for Glass Reinforced Plastics. It is also known as glass fiber, composite plastic, or FRP. it is strong, extremely light, and versatile. the behavior of GRP is different from that of traditional thermoplastics used in everyday products. This means that it has properties that can be used in a range of applications in many industries.

 

What is FRP?

 

FRP stands for Fiber Reinforced Polymer. FRP is a composite material formed from a polymer matrix reinforced with fibers. While the fibers used are usually glass fibers, such as GRP, other fibers such as carbon, aramid, or basalt are also used.

 

What is Fiber Reinforced Plastics used for?

 

GRP is used in a range of different applications. In many industries, products made partially or completely from GRP are useful. For example:

1. Non-slip protection for refurbishing wet and dry floors

2. Handrails

3. Sports equipment such as kayaks

4. Electronic enclosures

5. Safety grating for industrial and public areas

6. Helicopter rotor blades and wind turbine blades

7. Water pipes or drain covers

 

 

What are the properties of Fiber Reinforced Plastics?

 

GRP has many valuable properties that make it very useful in industries around the world. These properties include

Thermal insulation

FRP has a low thermal conductivity of 1.25 to 1.67 kJ/(mhK) at room temperature, 1/100 to 1/1000 that of metal, making it an excellent thermal insulation material. In the case of transient ultra-high temperature, it is an ideal material for thermal protection and ablation resistance and can protect the spacecraft to withstand the high-speed airflow above 2000℃.

High strength to weight ratio

The relative density is between 1.5~2.0, only 1/4~1/5 of carbon steel, but the tensile strength is close to or even exceeds that of carbon steel, and the specific strength can be compared with that of advanced alloy steel.

Corrosion resistance

FRP is a good corrosion-resistant material, with good resistance to the atmosphere, water, and general concentration of acids, alkalis, salts, as well as a variety of oils and solvents. It has been applied to all aspects of chemical corrosion resistance and is replacing carbon steel, stainless steel, wood, non-ferrous metals, etc.

Good electrical properties

It is an excellent insulating material, used to make insulators. Good dielectric properties can still be protected under high frequency. Good microwave permeability has been widely used in radar radome. Good heat and sound insulation effect.

Easy to mold

① The molding process can be flexibly selected according to the shape, technical requirements, usage, and quantity of the product.

② The process is simple and can be molded in one go, with outstanding economic effects, especially for products with complex shapes and small quantities that are not easy to mold, highlighting its process superiority.

 

What are the production methods of Fiber Reinforced Plastics?

 

Basically, there are two major categories, namely wet contact molding and dry pressurized molding. If we divide by process characteristics, there are hand paste molding, RTM method, lamination molding, molding, extrusion and pulling method, winding molding, etc. Hand- glued molding includes a bag-pressing method, hand-gluing method, a spraying method, wet-gluing low-pressure method, and mold-free hand-gluing method.

 

We are an FRP pipes manufacturer, please feel free to contact us if you need them.