Customized GFS Water Tank for Drinking water storage
description
Safety, cleanliness and odorlessness are essential requirements for drinking/potable water storage.
GFS tanks also named Glass-Fused-to-Steel tanks, its steel plates are fused with inorganic glass enamel layers on both the interior and exterior surfaces through high-temperature firing. It is specifically designed for the storage of drinking water, purified water, tap water, and demineralized water. Compared with stainless steel, concrete, plastic, and FRP tanks, it offers outstanding advantages.
●The water quality is safe and conforms to the hygienic requirements for drinkable water.
1.Non-toxic material with zero leaching.
The enamel glaze is an inorganic silicate glass, free of heavy metals and plasticizers. Highly stable after high-temperature firing, it leaches no harmful substances even during long-term storage of cold or ambient-temperature drinking water. It meets the Hygienic Safety Evaluation Standards for Drinking Water Conveyance Equipment and Protective Materials, making it suitable for storing municipal tap water, purified drinking water, and raw water for bottled water.
2.No harmful substances will grow and no secondary pollution will occur.
The inner wall is dense, smooth, free of micropores, non-permeable, and does not adsorb organic matter. Unlike concrete tanks, it does not leach calcium ions or alkaline substances; unlike ordinary plastic tanks, it does not release trace amounts of additives even after prolonged immersion.
●Highly corrosion-resistant, suitable for a wide range of water qualities, and offers an extended service life.
1.Acid and alkali resistant, and resistant to corrosion from residual chlorine in tap water.
Tap water contains hypochlorous acid and chloride ions. Ordinary carbon steel is prone to rusting, and 304 stainless steel can suffer from pitting corrosion when exposed to high-chloride water environments over the long term. The enamel layer offers far superior resistance to chloride ion corrosion compared to stainless steel, ensuring that during long-term storage of tap water, it does not rust and does not produce rusty yellow water.
2.Tolerant to water quality fluctuations.
Whether the water is slightly acidic or slightly alkaline—such as groundwater or surface water—the inert enamel glaze layer will not undergo any chemical reaction. The water will not change color or develop off-flavors.
3.Ultra-long service life.
A qualified drinking-water-grade enamel tank can achieve a normal service life of 30 years or more. The enamel layer is resistant to aging and powdering, far outperforming FRP tanks (which are prone to aging and leakage) and plastic tanks (which typically age within 5–10 years).
● Smooth inner wall resists scaling, algae, and bacterial adhesion.
1.Extremely low adhesion, easy to clean.
The glass enamel surface has an extremely low friction coefficient, making it difficult for scale and microbial slime to adhere to the tank wall. In contrast, concrete tanks have rough, porous surfaces that readily trap sediment and promote biofilm growth, while stainless steel tanks tend to develop passive scale layers over prolonged use.
2.Inhibits the growth of algae and biofilms.
The smooth, non-porous inner wall lacks attachment sites for microorganisms. When combined with routine disinfection, biofilms and green algae are unlikely to form inside the tank. This significantly reduces the risk of odor and turbidity in the water, and decreases the frequency of water changes and tank cleaning.
● Structural and Installation Advantages (Practical Benefits for Drinking Water Engineering Projects)
1．Modular assembly on-site with low transport costs.
Panels are factory-shipped in sections, ideal for mountainous sites, residential areas, and compact waterworks with limited space—eliminating the need for integral tank transport and simplifying foundation requirements.
2．Leak-proof and impermeable.
Steel-plus-enamel dual protection, paired with food-grade rubber gaskets, delivers reliable sealing. Avoids the leakage issues of concrete tanks and prevents groundwater backflow contamination.
3．Adaptable insulation options.
External insulation can be installed, making it well-suited for outdoor drinking water storage—reducing summer bacterial growth from temperature rise and minimizing winter freezing risks.
● Low maintenance cost.
The tank is not prone to corrosion or perforation, requiring minimal repair.
Cleaning is simple—just a high-pressure water rinse is sufficient; no acid washing or grinding is needed.
In the event of minor localized chipping or damage to the enamel layer, on-site repair is possible without the need for full tank replacement, making maintenance quick and convenient.
Material Characteristics of Glass-Fused-to-Steel Tanks
-Low Carbon, High Strength, High Titanium.
The steel substrate employed in the construction of glass-fused-to-steel tanks is a special high strength enamelled steel with a unique design and superior properties. Its mechanical properties, including yield strength, tensile strength, and elongation, far exceed those of conventional steel sheets.
