Steel-lined PE, PO, and PP storage tanks
Introduction
- Product Description
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Steel-lined PE storage tank (Polyethylene)
• Material: Linear low-density polyethylene (LLDPE), high-density polyethylene (HDPE)
• Temperature resistance: -40°C to 60–70°C (standard ≤70°C)
• Corrosion resistance: Resistant to most dilute acids, dilute alkalis, salts, and alcohols; not resistant to strong oxidizing agents (concentrated nitric acid, hydrogen peroxide).
• Manufacturing process: Rotational molding in one piece, seamless and leak-proof; can be fitted with a turtle‑shell mesh for resistance to negative pressure.
• Applicable to: Ambient‑temperature, conventional corrosive media (hydrochloric acid, dilute sulfuric acid, wastewater, food‑grade liquids)
Steel-lined PO storage tank (Polyolefin)
• Material: Ethylene/Propylene Copolymer (modified PE, commonly referred to as PO in the industry)
• Temperature resistance: -40°C to 85–90°C (superior to PE)
• Corrosion resistance: resistant to acids, alkalis, salts, and organic solvents; superior impermeability and stress‑cracking resistance compared to PE.
• Process: Hot roll coating / Rotational molding; can be equipped with turtle‑shell mesh and is resistant to negative pressure.
• Applications: Moderate-temperature service conditions; corrosive liquids containing small amounts of solid particles (e.g., chemical intermediates, pesticides, dyes)
Steel-lined PP storage tank (Polypropylene)
• Material: Homopolymer PP, Copolymer PP (PPH)
• Temperature resistance: -10°C to 100°C (the highest among the three)
• Corrosion resistance: resistant to inorganic and organic acids, bases, and salts; resistant to certain organic solvents; not resistant to strong oxidizing agents or halogenated hydrocarbons.
• Manufacturing processes: plate welding, rotomolding, and powder coating; with a relatively thin liner and excellent rigidity.
• Applications: high-temperature corrosive media, chemical pickling, electroplating, and food-grade sanitary conditions.
Project Lined with PE Lined with PO PP lining Maximum temperature resistance 60~70℃ 85~90℃ 100℃ Corrosion resistance Conventional acids and bases Superior to PE, resistant to particulates. High-temperature and acid/alkali resistant Negative pressure resistance Need turtle shell mesh Tortoise-shell mesh is better. General (easily collapses) Wear resistance General Good General Cost Minimum middle Middle and high Applicable Scenarios Room temperature, universal Medium temperature, particulate-containing High temperature, strong corrosion All PO, PE, and PP‑lined storage tanks are steel‑lined plastic composite vessels, featuring a carbon steel (Q235B) shell with an inner lining of various thermoplastic materials, thus combining the strength of steel with the corrosion‑resistant properties of plastics. Our company offers a full range of custom‑made, non‑standard solutions tailored to your specific needs, ensuring precise alignment with operating conditions. Based on lining material, structural configuration (installation type or shape), pressure rating, capacity specifications, and intended process applications—along with factors such as the stored medium, temperature, pressure, and volume—we design steel‑lined plastic composite storage tanks that meet your unique requirements for both aesthetics and performance. Backed by advanced technology and a dedicated engineering team, we look forward to sincere collaboration with each client, working together to develop market‑driven, customized solutions and becoming your long‑term partner.
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Steel-lined PE, PO, and PP storage tanks
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