Galvanized Corrugated Steel Tank with PVC Lining is a specialized type of storage tank designed for durability, strength, and exceptional corrosion resistance.
Here’s a breakdown of its components and purpose:
A: Structural of Corrugated Steel Tank with PVC Lining
Galvanized Corrugated Steel: The main body of the tank is made from steel that has been galvanized, meaning it has been coated with a layer of zinc. This process helps protect the steel from rust and corrosion, making it suitable for outdoor use where it may be exposed to various weather conditions. The term “corrugated” refers to the pattern pressed into the steel, which increases its strength and rigidity without adding extra weight.
PVC Lining: Inside the tank, there is a lining made of Polyvinyl Chloride (PVC). This lining serves as a barrier between the stored water and the galvanized steel. It helps prevent the water from coming into direct contact with the metal, further reducing the risk of corrosion or contamination of the water. Additionally, the PVC lining can make the tank more resistant to leaks by covering any small imperfections or joints in the steel.
B: Advantage of Corrugated Steel Tank with PVC Lining
Durability: Combines the physical strength of galvanized corrugated steel with the protective qualities of a PVC lining.
Corrosion Resistance: Both the galvanization process and the PVC lining contribute to long-term resistance against corrosion.
Water Quality: The PVC lining ensures that the water remains uncontaminated by the metal, maintaining its quality.
Ease of Installation: These tanks are often designed for easy assembly and installation, sometimes even being portable depending on their size.
C: Application of Corrugated Steel Tank with PVC Lining
Potable Water Storage: Municipal water systems, rural water supplies, community tanks, emergency reserves.
Fire Protection Water Storage: Dedicated tanks for fire suppression systems.
Agricultural Water Storage: Irrigation, livestock watering.
Industrial Water Storage: Process water, cooling water.
Chemical Storage: Storage of compatible chemicals, fertilizers, and other industrial liquids where corrosion resistance is critical.
Rainwater Harvesting: Long-term storage of collected rainwater.
D: Considerations of Corrugated Steel Tank with PVC Lining
Cost: Adding the PVC lining increases the initial cost compared to a standard galvanized corrugated steel tank.
Liner Integrity: While very durable, the PVC liner can potentially be damaged during installation or by sharp objects introduced into the tank. Care must be taken during assembly and maintenance.
UV Degradation: If exposed to direct sunlight for extended periods, PVC can degrade. Tanks are usually designed so the liner is not exposed to UV light (e.g., covered roof, opaque tank walls). Liners can also be formulated for UV resistance if needed.
Installation: Requires skilled installation to ensure the liner is properly welded (if panels are welded) or sealed at seams and around fittings to maintain its integrity.
Temperature: PVC has temperature limitations. Very hot liquids can soften or damage the liner. Check the liner’s specifications for operating temperature ranges.
E: Summary
This type of galvanized corrugated steel tank is commonly used in residential, agricultural, and industrial applications for storing water for drinking, irrigation, firefighting, and other uses.
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