FRP Pipe & Tanks - Outstanding Corrosion Resistance

FRP, also known as fiberglass reinforced plastic, is an advanced composite material composed of resin and fiberglass. Depending on the type of resin used, FRP can be classified into polyester FRP, glass-fiber reinforced epoxy (GRE), and phenolic glass-fiber reinforced plastic. These materials are commonly fabricated into FRP pipes and tanks.

Discover the diverse range of quality FRP pipes and tanks, known for their robustness, lightweight, and excellent corrosion resistance. Perfect for various industrial applications.

Contact us to discuss your requirements for smith fiberglass piping. Our experienced sales team is ready to help you select the best options to meet your needs.

Our Manufacturing Process

Our FRP pipes and tanks are produced using the filament winding process by specialized experts. Continuous roving is impregnated with polyester resin and helically wound around a rotating mandrel to achieve the desired wall thickness. This process results in FRP pipes and tanks with superior physical properties and a longer service life compared to traditional materials. Additionally, our FRP products are lightweight, rigid, non-conductive, and highly resistant to corrosion.

Variety of FRP Products

We offer a wide range of FRP products, including:

• FRP pressure pipes
• FRP cable protection pipes
• FRP chimney pipes
• FRP flue pipes
• FRP double wall tanks
• FRP storage tanks
• FRP flanges, available in both large and small diameters
• Specially customized FRP tanks
• FRP pipe connectors
• FRP septic tanks
• FRP sand filtration tanks
• FRP transportation tanks
• FRP depositing tanks

Besides the above products, we also supply FRP ducting, stacks, tubs, and various corrosion-resistant tanks based on customer requests. All our FRP products offer unmatched benefits:

Unmatched Advantages of FRP Products

• Light Weight
  FRP products have a low relative density of 1.5 to 2, offering a higher strength-to-weight ratio compared to other pipe materials. For instance, they are only 1/5 to 1/4 the weight of carbon steel while maintaining high strength comparable to quality alloy steel.
• Superior Corrosion Resistance
  Made from high-quality inert materials, FRP pipes and tanks are highly resistant to corrosive liquids such as acids, alkalis, and saltwater. They also exhibit excellent chemical and weather resistance, significantly extending their lifespan.
• Exceptional Thermal Properties
  FRP products have a low thermal insulating property—about 1/100 to 1/1000 that of traditional steel. They are also temperature-resistant, effectively maintaining the temperature of liquids within the pipes.
• Excellent Design Flexibility
  FRP materials offer superior design flexibility, allowing them to be fabricated in various designs to meet different application needs. They are also easy to install, handle, modify, and repair at a lower cost.
• Non-Toxic & Anti-Aging
  FRP's non-toxicity makes it suitable for contact with potable water and food. It is also highly resistant to aging, enabling years of outdoor use.
• Long Service Life
  Thanks to advanced manufacturing techniques, FRP pipes and tanks offer long service life without compromising safety, providing cost savings with minimal maintenance needs.

If you would like to learn more about our FRP pipe and tank products, please email us at info@frpmachine.com. Custom orders are also welcomed. Don't forget to enclose your design drawings for specific products. We are happy to answer any of your questions.

Contact Our Team

Hengshui Fangchen FRP Equipment Technology Co., Ltd.
Email: info@frpmachine.com

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Understanding Fiberglass Reinforced Plastics (FRP)

FRP vs. GRP: Identifying the Differences

FRP stands for Fiber Reinforced Plastic, while GRP stands for Glass Reinforced Plastic. The main difference is the type of reinforcing fiber used, though these terms are often used interchangeably to describe similar plastic products.

Introduction

In recent years, FRP has gained popularity in process, water, and chemical industries due to its high corrosion resistance.

FRP pipes are increasingly used for transporting water, oil, fuel, glycol, wastewater, sewer, and more. Consequently, the demand for FRP pipes continues to grow.

With an average service life of about 50 years, FRP pipes offer a cost-effective solution compared to metal pipes over their lifespan.

What is FRP?

FRP is a composite material made up of a polymer matrix reinforced with fibers. FRP pipes are manufactured using either contact molding or the filament winding method, with various resins like thermosetting polyester, epoxy, or phenolic resin used to achieve specific properties.

The most widely used reinforcement is fiberglass. Given its corrosion resistance, FRP piping systems are used worldwide as an alternative to metallic piping.

Filament Wound Laminate Structure

1. C-Glass surface veil

2. Chopped Strand Mat

3. Woven Roving

4. Filament Wound Strand

5. Outer surface layer with U.V. inhibitor

a. Corrosion Barrier (Abrasion Barrier) (Thickness .100in nominal)

b. Structural Wall (Thickness in accordance with pressure rating)

Contact Molded Laminate

Common Fiber Types

• Glass: A good insulating material that forms fiberglass when blended with the matrix. While less strong, rigid, and expensive than carbon fiber, it is also less brittle.
• Carbon Fiber: Reinforced plastics with high tensile strength, chemical resistance, stiffness, temperature tolerance, low thermal expansion, and weight. Carbon atoms align along the fiber's long axis for high strength-to-volume ratio.
• Aramid: Offering robust and heat-resistant synthetic fibers, aramid finds widespread industrial applications.

FRP Pipe Systems

FRP pipes are available in a variety of sizes, from 1 inch to over 100 inches. The selection of FRP materials for pipes and fittings, including flanges, elbows, tees, crosses, reducers, and more, can eliminate the need for internal lining, external coating, and cathodic protection.

Beyond FRP Pipes

In addition to pipelines, FRP is used to manufacture storage tanks, towers, grids on walkways, and profiles similar to steel profiles. Here's a closer look at FRP storage tanks:

FRP Storage Tanks

FRP storage tanks are categorized into vertical and horizontal types. Material selection for winding storage tanks must prioritize quality while considering cost. FRP storage tank walls typically consist of an inner liner layer, a strength layer, and an outer surface layer.

Material and Resin Selection

Different layers have different material requirements. The inner liner, directly contacting the medium, is crucial for controlling leakage. For acidic mediums, vinyl resin is used, while bisphenol A resin suits alkaline mediums. For water and alkali resistance, alkali-free glass fiber is used; for acid resistance, medium-alkali glass fiber is employed. The inner liner comprises surface felt and chopped strand mat to reinforce impermeability.

The strength layer meets the tank's strength and stiffness requirements, using resins that form a dense structural layer with the glass fiber. The outer surface, exposed to the environment, is selected based on aging resistance requirements.

Applications

FRP tanks are versatile, resistant to pressure, corrosion, aging, and offer a long service life. They are lightweight, strong, impermeable, heat-insulated, non-toxic, and smooth-surfaced. Industries include coatings, pharmaceuticals, building materials, chemicals, pigments, resins, food, and scientific research.

Drawbacks of FRP

• Not recommended for fluids over 100°C.
• Slight UV degradation, mitigated by using pigments, dyes, UV stabilizers, fillers, etc., in the resin system.

FRP Products Recap

• FRP Storage Tank
• FRP Columns
• FRP Grids on Walkways

References

www.frpwt.com
HeBei WeiTong FiberGlass Co., Ltd.

www.versteden.com
Versteden Fiberglass Piping Systems

www.fibrex.com
FIBREX FRP Piping Systems

Standards and Codes for FRP

For more information, visit underground fiberglass storage tanks.

• ASTM D6041, Specification for Contact-Molded "Fiberglass" (Glass Fiber-Reinforced Thermosetting Resin) Corrosion Resistant Pipe and Fittings, ASTM, West Conshohocken, PA
• ASTM D2992, Hydrostatic or Pressure Design Basis for Fiberglass (Glass-Fiber-Reinforced Thermosetting-Resin) Pipe and Fittings, ASTM, West Conshohocken, PA
• ASME B31.3 Process Piping, ASME, New York, NY
• ASTM D5421, Specification for Contact Molded Fiberglass (Glass-Fiber Reinforced Thermosetting Resin) Flanges, ASTM, West Conshohocken, PA
• ISO 7370, Glass Fiber Reinforced Thermosetting Plastics (GRP) Pipes and Fittings - Nominal Diameters, Specified Diameters, and Standard Lengths
• ANSI AWWA C950-2020, Standards for Fabrication and Testing of Fiberglass Pipe for Aboveground and Underground Water Systems
• AWWA M45, Guidelines for Selecting, Installing, and Maintaining Fiberglass Pipes in Potable Water Systems
• ISO 14692-1, Petroleum and Natural Gas Industries - Glass-Reinforced Plastics (GRP) Piping