Fiberglass tank

Fiberglass tanks are key components in water treatment equipment. Made of fiberglass reinforced plastic (FRP) and lined with food-grade polyethylene (PE), they are lightweight, high-strength, and corrosion-resistant. Operating pressures range from 0.15-0.6 MPa and temperatures ≤49°C [2-4]. They are widely used in boiler feedwater softening, air conditioning system replenishment, and water treatment applications in the chemical, food, and beverage industries. The tanks are manufactured using a continuous fiber winding process, enabling fully automatic backwashing and regeneration cycles. Their thermal conductivity ranges from 1.25 to 1.67 kJ/(m·h·K) and their relative density ranges from 1.5 to 2.0. ISO9001 and CE safety certification are available, with diameters ranging from φ200 to φ1800 mm and support for threaded and flanged connections.

Product Advantages

(1) FRP tanks are lightweight and high-strength

The relative density is between 1.5 and 2.0, only 1/4 to 1/5 of carbon steel, but its tensile strength is close to or even exceeds that of carbon steel, and its specific strength is comparable to that of high-grade alloy steel. Therefore, it is used in aviation, rockets, spacecraft, high-pressure vessels, and other applications where weight reduction is required. The tensile, flexural, and compressive strengths of some epoxy FRPs can reach over 400 MPa. Note: Specific strength is strength divided by density.

(2) FRP tanks have good corrosion resistance. FRP is a good corrosion-resistant material, with good resistance to air, water, and generally concentrated acids, alkalis, salts, and various oils and solvents. It has been applied to various aspects of chemical corrosion protection and is replacing carbon steel, stainless steel, wood, non-ferrous metals, etc. 

(3) FRP tanks have good electrical properties. It is an excellent insulating material and is used to make insulators. It can still maintain good dielectric properties at high frequencies. It has good microwave transmittance and is widely used in radar antenna covers.

(4) FRP tanks have excellent thermal performance. FRP has a low thermal conductivity of 1.25-1.67 kJ/(m·h·K) at room temperature, only 1/100-1/1000 of that of metal, making it an excellent thermal insulation material. Under transient ultra-high temperature conditions, it is an ideal thermal protection and ablation-resistant material, capable of protecting spacecraft from high-speed airflow at temperatures exceeding 2000°C.