500m³ Dual Membrane Biogas Holder Spherical Design with 20-Year Lifespan and 30kg/m² Snow Load Capacity
This 500m³ dual membrane biogas holder is engineered for biogas plant applications, featuring a spherical design that can be ground-mounted or installed atop anaerobic digesters. The system consists of an outer protective membrane maintained under constant pressure and an inner membrane that dynamically adjusts to gas volume changes. When ground-mounted on concrete foundations, an additional bottom membrane ensures complete gas containment.
All gasholders comply with stringent European and U.S. standards for construction materials, structural integrity, storage capacity, and environmental resistance. Custom-designed using high-quality PVC-coated polyester fabrics, these systems prioritize safety, reliability, and operational control.
With over 1,800 successful installations worldwide, our engineering expertise ensures optimal performance and longevity for your specific project requirements.
| Parameter | Specification |
|---|---|
| Capacity | Customized |
| Design Pressure | 3-20 mbar |
| Operating Pressure | 3-15 mbar |
| Membrane Thickness | 0.74-1.20 mm |
| Maximum Wind Load | 32.6 m/s |
| Maximum Snow Load | 30 kg/m² |
| Temperature Range | -30℃ to +70℃ |
| Design Service Life | ≥20 years |
| Methane Permeability | ≤200 cm³/m²*d*0.1MPa |
| Flame Retardancy | B1 Standard |
| Warranty | 10 years |
The biogas storage membranes utilize highly tear-resistant polyester fabrics with specialized PVC surface treatment and acrylate varnish. The material demonstrates excellent resistance to biogas components, UV radiation, and environmental factors.
- Flame-proof certification: DIN 4102-B1
- High resistance to permeability and UV degradation
- Temperature resistance from -30°C to +70°C
- Wind and snow load resistance for safe operation
- White external membrane provides high reflectivity
- 100% biogas utilization with complete gas extraction
- Lightweight design reduces transportation and installation costs
- Minimal maintenance required with 15+ year lifespan
- Rapid installation completed in days rather than weeks
- Cost-effective solution compared to traditional biogas storage
- Anti-freezing design eliminates water-related freezing issues
- Thermal insulation through dual-membrane air gap
- Aesthetically pleasing spherical design
- Enhanced safety with reduced explosion fragmentation risk
- Easy repair and maintenance capabilities
- Simple removal and relocation when required
- Fire protection meets European B1 standard
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