Membranes for Flexible Biogas and Water Storage Systems
Flexible membrane systems have become a critical component in modern biogas production and water storage infrastructure. As global demand grows for renewable energy, wastewater treatment efficiency, and sustainable agricultural practices, high-quality membranes for flexible biogas and water storage systems are essential for ensuring safety, durability, and long-term performance. DERFLEX, as a professional PVC coated fabric manufacturer, provides advanced membrane solutions engineered to meet the strict technical and environmental requirements of biogas and water containment applications.
Overview of Flexible Biogas and Water Storage Membrane Systems
Flexible membrane systems are widely used in biogas digesters, gas holders, anaerobic lagoons, wastewater reservoirs, and potable or non-potable water storage tanks. Unlike rigid structures, membrane-based systems offer superior adaptability, lower installation costs, and excellent resistance to environmental stress.
DERFLEX membranes are designed to provide:
- High gas tightness to prevent methane leakage
- Excellent tensile strength and tear resistance
- Outstanding UV and weather resistance
- Long service life under outdoor exposure
- Compatibility with biogas, slurry, and various water qualities
Why Membranes Are Essential for Biogas Systems
Biogas systems rely on airtight environments to capture methane produced during anaerobic digestion. Any leakage directly impacts energy efficiency, operational safety, and environmental compliance. High-performance membranes ensure that biogas is safely contained while accommodating pressure fluctuations and structural movement.
DERFLEX biogas membranes are widely applied in:
- Flexible biogas digesters
- Double membrane gas holders
- Floating covers for anaerobic lagoons
- Biogas storage domes
Membranes for Water Storage Applications
Water storage membranes play a crucial role in agricultural irrigation, municipal water supply, industrial water treatment, and emergency water reserves. Flexible membranes offer excellent adaptability to terrain and allow rapid installation compared with concrete or steel tanks.
DERFLEX water storage membranes are suitable for:
- Rainwater harvesting systems
- Wastewater and effluent storage lagoons
- Agricultural water reservoirs
- Industrial process water containment
Material Structure and Technology
DERFLEX membranes for flexible biogas and water storage systems are manufactured using high-tenacity polyester fabric as the reinforcement layer, coated with premium-grade PVC compounds. Advanced formulation and coating technology ensure consistent thickness, excellent adhesion, and long-term stability.
Key Material Components
- Base Fabric: High-strength polyester yarn providing mechanical stability
- Coating: Flexible PVC formulation with plasticizers and stabilizers
- Surface Treatment: Optional lacquer or PVDF coating for enhanced durability
Technical Specifications
| Property | Typical Value |
|---|---|
| Base Fabric | High Tenacity Polyester |
| Coating Material | PVC |
| Total Weight | 800 – 1500 g/m² |
| Tensile Strength | ≥ 3000 / 3000 N/5cm |
| Tear Strength | ≥ 400 / 400 N |
| Temperature Resistance | -30°C to +70°C |
| UV Resistance | Excellent |
| Gas Tightness | High |
Performance Advantages of DERFLEX Membranes
DERFLEX membranes are engineered to deliver reliable performance under demanding conditions. Compared with standard materials, our membranes offer several advantages:
- Superior resistance to biogas components such as methane, hydrogen sulfide, and moisture
- Excellent flexibility even at low temperatures
- High resistance to puncture and abrasion
- Stable performance under continuous outdoor exposure
Applications in Biogas Industry
DERFLEX membranes are widely used across the biogas industry, from small agricultural digesters to large-scale industrial biogas plants.
- Agricultural biogas plants
- Municipal wastewater treatment facilities
- Industrial organic waste digesters
- Landfill gas collection systems
Applications in Water Storage Systems
For water storage, DERFLEX membranes ensure leak-proof containment and long-term reliability.
- Flexible water tanks
- Reservoir liners
- Lagoon covers
- Emergency water storage systems
Customization and OEM Capabilities
DERFLEX offers customized membrane solutions tailored to specific project requirements. Parameters such as thickness, color, surface finish, and reinforcement structure can be adjusted to match operational needs.
OEM and private label services are available for international partners seeking consistent quality and reliable supply.
Installation and Welding
DERFLEX membranes are designed for easy installation using high-frequency welding or hot air welding techniques. Proper installation ensures optimal gas tightness and structural integrity.
- Pre-fabricated panels available
- On-site welding compatibility
- Clear installation guidance provided
Quality Control and Testing
Quality assurance is a core principle at DERFLEX. Each batch of membrane material undergoes strict testing procedures, including tensile strength, tear resistance, adhesion, and aging tests.
DERFLEX Company Profile
DERFLEX is a professional PVC coated fabric manufacturer with over 15 years of experience in industrial textile solutions. The company focuses on research, manufacturing, and global distribution of high-performance coated fabrics for biogas, water storage, environmental protection, and industrial applications.
Official website: https://www.derflex.com
Certificates and Compliance
DERFLEX membranes comply with international quality and environmental standards. Products can be supplied with relevant test reports and certifications upon request.
Why Choose DERFLEX Membranes
- Proven expertise in PVC coated fabric manufacturing
- Stable quality and consistent performance
- Custom engineering support
- Global export experience
- Reliable after-sales service
Frequently Asked Questions
Contact DERFLEX for Biogas and Water Storage Membranes
If you are looking for reliable membranes for flexible biogas and water storage systems, DERFLEX provides professional support, technical expertise, and stable supply. Contact us through our official website to discuss your project requirements.




