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Enamel Assembled Tank (Enamel Assembled Tank / GFS Bolted Tank)is a modular storage tank assembled from enamel-coated steel plates, special self-locking bolts, and sealing gaskets. It adopts the Glass-Fused-to-Steel (GFS) process, which perfectly combines an inorganic glass layer with a steel base, integrating the structural strength of steel with the corrosion and chemical resistance of glass.
l Installation Method: Modular bolted assembly, short on-site construction period, no need for large lifting equipment
l Capacity Range: Customizable from 50m³ to 10,000m³ and above, flexibly adapting to different project requirements
l Core Applications: Widely used in wastewater treatment, biogas projects, drinking water storage, chemical waste liquid storage and other fields, serving as an efficient and environmentally friendly alternative to traditional concrete tanks and welded tanks
Technical Parameter
Item | Parameter Range | Notes |
Tank Material | Enamel-coated steel plate (double-sided enamel) | Enamel layer thickness: 0.4~0.5mm |
Steel Plate Thickness | 3.0mm ~ 12.0mm | Customized according to tank diameter and height |
Tank Diameter | 3m ~ 30m | Non-standard design available |
Tank Height | 4m ~ 20m | Non-standard design available |
Effective Volume | 50m³ ~ 10,000m³+ | Customizable per project requirements |
Enamel Color | Dark green / black / blue | Color customizable |
Design Service Life | ≥30 years | Under normal operating conditions |
Operating Temperature | -40℃ ~ 120℃ | Adapts to different climatic environments |
Accessory Configuration | Ladder, guardrail, manhole, level gauge, breather valve, pipe interface | Optional as required |
Material Description
Enamel-coated Steel Plate: Made of high-quality low-carbon steel as the base, with an inorganic glass glaze fused to the steel surface via high-temperature sintering to form a dense enamel layer. It features acid and alkali corrosion resistance, anti-microbial adhesion, no scaling, and easy cleaning.
Sealing Gasket: Made of weather-resistant EPDM (Ethylene Propylene Diene Monomer) or butyl rubber, maintaining elasticity in high and low temperature environments, effectively preventing tank leakage, with a service life synchronized with the tank.
Connecting Bolts: Made of hot-dip galvanized or stainless steel, with excellent rust and corrosion resistance to ensure long-term structural stability of the tank.
Accessory System: Ladders, guardrails, manholes and other accessories are made of hot-dip galvanized steel or stainless steel, complying with safety and corrosion resistance standards.
Excellent Corrosion Resistance: The enamel layer is resistant to acids and alkalis (pH 3~11) and chemical corrosion, does not react with sewage, biogas or chemical waste liquids, avoiding tank corrosion and leakage.
Efficient and Convenient Installation: Modular assembly only requires bolt connection on site. The construction period is more than 50% shorter than that of concrete tanks, no on-site welding is needed, and it is not affected by weather.
Extra Long Service Life: Designed service life ≥30 years, far superior to traditional welded tanks (10~15 years) and concrete tanks (about 20 years), reducing later maintenance costs.
Flexible Expansion and Relocation: Can be expanded at any time by adding steel plate modules, and can also be disassembled and relocated to other project sites, adapting to project changes.
Low Maintenance Cost: The smooth enamel surface is not easy to scale, easy to clean and maintain; the bolted connection structure facilitates local maintenance without overall shutdown.
l Environmental Protection and Safety: No welding pollution, no concrete construction dust, complying with environmental construction requirements; the tank structure is stable, with excellent earthquake and wind load resistance.
Wastewater Treatment Field: Equalization tanks, anaerobic tanks, aerobic tanks, sedimentation tanks, sludge storage tanks for municipal sewage and industrial wastewater (printing and dyeing, chemical, food, pharmaceutical, etc.).
Biogas Engineering Field: Biogas fermentation tanks, biogas gas holders, biogas slurry storage tanks, suitable for biomass biogas projects such as livestock and poultry breeding, kitchen waste, and straw.
Drinking Water / Reclaimed Water Storage: Urban and rural drinking water reserves, reclaimed water reuse storage. The enamel surface meets drinking water hygiene standards without secondary pollution.
Chemical and Environmental Protection Field: Temporary storage and treatment of corrosive liquids such as chemical waste liquid, acid-base waste liquid, and electroplating wastewater.
Agricultural and Animal Husbandry Field: Livestock farm manure treatment, irrigation water storage, organic fertilizer fermentation tanks.
