Product Description

A fiberglass holding tank, also known as an FRP storage tank, is an advanced composite container manufactured using computer-controlled filament winding, combining glass fiber reinforcement with a resin matrix. It offers excellent lightweight strength, corrosion resistance, long service life, and thermal insulation, making it an ideal choice for storage and transport systems across industries such as chemical processing, environmental protection, food and beverage, pharmaceuticals, energy, and agriculture.

Product Parameters

Item	Specification
Main Materials	Glass fiber + resin (epoxy, polyester, vinyl, etc.)
Molding Process	Filament winding, hand lay-up, compression molding
Density	1.5–2.0 g/cm³, about 1/4–1/5 that of carbon steel
Tensile Strength	Comparable to or higher than carbon steel
Corrosion Resistance	Resistant to acids, alkalis, salts, and organic solvents
Temperature Range	Typically -50℃ to 120℃ (depends on resin type)
Design Pressure	Customizable (atmospheric to pressurized)
Service Life	Long, generally over 20 years (depending on conditions)

Main Applications

Chemical & Environmental Sectors:

Storing corrosive chemicals, wastewater treatment, exhaust gas purification, and dosing systems.

Food & Pharmaceutical Industries:

Storing juices, alcoholic beverages, edible oils, raw pharmaceutical materials, and process water, meeting food-grade or GMP standards.

Energy & Agriculture:

Storing petroleum products, irrigation water, pesticides, and fertilizers, with good sealing and environmental adaptability.

Water Treatment:

Used as pure water storage tanks, recycled water tanks, sewage equalization tanks, and chemical dosing tanks, including FRP vessels for water treatment.

Other Industrial Fields:

Liquid or slurry storage in papermaking, power, metallurgy, and desalination industries, includingFRP underground storage tanks.

Structure & Manufacturing

FRP tanks typically consist of (from inside to outside): a corrosion-resistant inner liner, an anti-permeability layer, a fiber-wound structural layer, and an external protective layer.

Main molding processes include:

♦ Filament Winding:Automated, suitable for large, pressurized tanks with uniform structure and high strength.

♦ Hand Lay-up:Flexible, used for irregularly shaped, small-batch, or non-standard products.

♦ Compression Molding:Precise dimensions and smooth surfaces, suitable for mass-producing small to medium-sized tanks.

Frequently Asked Questions (FAQ)

Q: What are the advantages of FRP tanks compared to stainless steel tanks?

A:Fiberglass holding tanksoffer better corrosion resistance, lighter weight, lower thermal conductivity, and generally lower overall cost and maintenance, especially in highly corrosive or outdoor environments.

Q: Can FRP tanks be used for potable water storage?

A: Yes. With a food-grade resin liner and compliance with relevant health standards (e.g., GB 5749, FDA), they are safe for storing drinking water and other food-grade liquids.

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