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Help Center- Flexible Water/Oil Storage Bags (TPU/PVC) - Lightweight, Space-Saving & Customizable Capacity
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Detailed Introduction of Water Storage Bags & Oil Storage Bags (TPU/PVC)
This is a professional English introduction suitable for product catalogs, foreign trade quotations, tenders and official websites, focusing on industrial application, practical performance and clear parameters, with concise and rigorous expression.
I. Product Overview
Water storage bags and oil storage bags (also known as flexible liquid storage bags, foldable liquid storage bladders, vehicle-mounted/engineering liquid storage bags) are flexible soft containers made of high-strength fabric base material as the framework, compounded with TPU or PVC polymer coating on both sides, and manufactured by high-frequency heat sealing/welding.
They are mainly used in scenarios such as temporary water storage, emergency water storage, engineering water supply, agricultural irrigation, industrial oil storage, diesel/lubricating oil storage and transportation. The products feature foldability, light weight, easy transportation, space-saving and corrosion resistance, and can be customized in size, capacity and shape according to actual needs.
II. Material 1: TPU Liquid Storage Bags (High-End Model)
1. Material Structure
Base Material: High-strength polyester industrial filament fabric (high tensile strength, tear resistance, and good dimensional stability, not easy to deform under pressure)
Coating: Thermoplastic Polyurethane Elastomer (TPU), with thickness of 0.3mm-1.2mm (customizable according to pressure and service life requirements)
Production Process: High-frequency hot-melt welding, seamless bonding, no leakage, strong bonding strength, which is not easy to crack even under frequent folding and stretching
2. Core Performance Advantages
Excellent Environmental Adaptability: Resistant to high and low temperatures (-40℃ to 80℃), can be used normally in harsh environments such as cold winter and hot summer, without brittle fracture or softening deformation.
Strong Corrosion Resistance: Resistant to water (drinking water, seawater, industrial wastewater), various oils (diesel, gasoline, lubricating oil, hydraulic oil), and weak acids and alkalis, no chemical reaction, no pollution to stored liquids.
Food-Grade Safety: Food-grade TPU material can be used for drinking water storage, in line with international food contact safety standards (such as FDA, EU food-grade certification), non-toxic, odorless, and does not release harmful substances.
Light Weight & High Toughness: Light weight (1/5 of the traditional rigid storage tank), easy to carry and install, no need for heavy lifting equipment; good toughness, strong impact resistance, not easy to be punctured by sharp objects (with optional anti-puncture coating).
Foldable & Space-Saving: Can be completely folded when not in use, occupying less space, easy to store and transport, reducing transportation and storage costs.
Long Service Life: Under normal use conditions, the service life can reach 5-8 years, with good wear resistance and aging resistance, not easy to fade or degrade.
3. Application Scenarios
Water Storage: Emergency water supply for disaster relief, temporary water storage for construction sites, agricultural irrigation water storage, household/vehicle-mounted emergency water storage, drinking water storage for outdoor operations (such as field exploration, camping).
Oil Storage: Temporary storage of industrial lubricating oil, diesel storage for engineering machinery, oil storage for ships and vehicles, temporary storage of fuel oil in oil fields and refineries.
Special Scenarios: Medical sterile water storage, chemical reagent storage (weak corrosion type), marine aquaculture water storage, etc.
III. Material 2: PVC Liquid Storage Bags (Cost-Effective Model)
1. Material Structure
Base Material: Polyester canvas or Oxford cloth (high strength, good wear resistance, suitable for general working conditions)
Coating: Polyvinyl Chloride (PVC), with thickness of 0.5mm-1.5mm (thicker coating for better pressure resistance)
Production Process: High-frequency welding or solvent bonding, mature process, stable product quality, high production efficiency.
2. Core Performance Advantages
High Cost-Effectiveness: Low production cost, affordable price, suitable for large-scale use and short-term temporary storage needs, with high cost performance.
Good Sealing Performance: Strict welding process ensures zero leakage, effectively preventing the loss of stored water or oil.
Strong Pressure Resistance: The thickened PVC coating and high-strength base material can bear a certain pressure (0.1-0.3MPa), suitable for medium and low pressure storage scenarios.
Easy to Clean & Maintain: The PVC surface is smooth, not easy to adhere to dirt, easy to clean with water, and simple daily maintenance.
Wide Size Range: Can be customized from small capacity (10L) to large capacity (100,000L), suitable for different storage needs.
3. Application Scenarios
Water Storage: Agricultural irrigation, construction site temporary water storage, landscape water storage, emergency water storage for flood control and drought relief (short-term), and non-drinking water storage.
Oil Storage: Temporary storage of diesel, gasoline, lubricating oil in factories, construction sites and farms, and oil storage for ordinary engineering machinery.
General Liquid Storage: Storage of industrial wastewater, cooling water, and other non-corrosive, non-food-grade liquids.
IV. TPU vs. PVC: Key Performance Comparison
Performance Indicator |
TPU Liquid Storage Bags |
PVC Liquid Storage Bags |
|---|---|---|
Temperature Resistance |
-40℃ ~ 80℃, excellent low-temperature resistance |
-10℃ ~ 60℃, poor low-temperature resistance (easy to brittle) |
Corrosion Resistance |
Resistant to water, oil, weak acids and alkalis, strong adaptability |
Resistant to ordinary water and oil, not suitable for strong corrosion liquids |
Safety Level |
Food-grade, non-toxic, suitable for drinking water storage |
Non-food-grade, not suitable for drinking water storage |
Toughness & Wear Resistance |
High toughness, anti-puncture, wear-resistant, long service life |
General toughness, easy to be punctured, service life 2-3 years |
Cost |
High (high-end material, suitable for high-demand scenarios) |
Low (cost-effective, suitable for general scenarios) |
Foldability |
Excellent, can be folded repeatedly without damage |
General, easy to crack after frequent folding |
V. Product Specifications & Customization
1. Common Specifications
Capacity: 10L, 50L, 100L, 500L, 1000L, 5000L, 10000L, 50000L, 100000L (customizable)
Thickness: TPU (0.3-1.2mm), PVC (0.5-1.5mm)
Shape: Cuboid, cylinder, irregular shape (customized according to use scenario)
Accessories: Inlet/outlet valve, drain valve, pressure relief valve, fixing belt, lifting ring (optional, according to needs)
Working Pressure: 0.1-0.5MPa (customizable according to material thickness)
2. Customization Services
Capacity & Size: Customize according to the actual storage space and demand.
Material Thickness: Adjust according to the required pressure and service life.
Color: Customize according to customer needs (common colors: blue, green, black, transparent).
Accessories: Configure corresponding valves, lifting rings, fixing devices, etc., according to the use scenario.
Logo & Marking: Print customer logo, product parameters, warning signs, etc., on the product surface.
VI. Usage Notes
Before use, check whether the bag body is damaged, whether the valve is sealed, and ensure no leakage.
When filling, control the flow rate to avoid excessive pressure leading to bag body damage; do not overfill (the maximum filling volume should not exceed 90% of the total capacity).
Place the storage bag on a flat, clean and free of sharp objects surface; it is recommended to lay a protective mat to prevent puncture.
Avoid prolonged exposure to strong sunlight (especially PVC bags) to prevent aging and shorten service life.
When storing oil, avoid contact with open fire, high temperature and strong oxidants to ensure safety.
After use, empty the internal liquid, clean and dry the bag body, fold it and store it in a cool, dry and ventilated place, avoiding moisture and mildew.
VII. Quality Assurance
All our water storage bags and oil storage bags (TPU/PVC) have passed strict quality inspection before leaving the factory, including leakage test, pressure test, tensile test and aging test, to ensure product quality meets industrial standards. We provide after-sales service and technical support, and solve product use problems for customers in a timely manner.
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