Side view of a large volume biogas accumulator for anaerobic digestion setup.
Front view of a fully inflated spherical anaerobic digester gas bag in the factory.
Cylindrical low pressure biogas buffer tank for industrial anaerobic digester systems.
Large scale external gas storage unit for farms undergoing quality inspection in factory.
Detailed view of the H2S resistant biogas storage bag valve and secure metal flange.

11m3 PVC Heavy-Duty Anaerobic Digester Gas Bag for Anaerobic Digester Systems

A digester is only as good as its storage. Our specific gas bags for anaerobic digesters act as low-pressure accumulators. They seamlessly integrate with your existing pipework to safely hold produced methane until it is ready to be utilized, preventing system over-pressurization.

Specifications of Anaerobic Digester Gas Bag

Parameter
Specifications
Product Name
Gas Storage Bags for Anaerobic Digester Systems
Material
Heavy-Duty PVC / Premium red mud PVC anaerobic digester bladder
Color
Industrial Red (Red Mud), Grey, Black, Custom Colors Available
Capacity Range
1m³ to 500m³ (Custom sizes easily supported for industrial sites)
Working Pressure
Low Pressure Application: < 20 kPa (Acts as a low pressure biogas buffer tank)
Application
Integrated as essential industrial anaerobic digestion components (for):
  • Commercial Dairy & Pig Farms
  • Municipal Wastewater Treatment
  • Food Waste-to-Energy Plants
Key Advantages
  • 99% Gas-Tight Retention: Built as a double welded methane recovery bag to prevent leakage.
  • Engineering Safety: Functions as a methane expansion vessel for biogas system to prevent over-pressure.
  • System Stability: Serves as a biogas accumulator for anaerobic digestion to ensure steady gas output.
  • Weatherproof: Excellent UV and H2S resistant biogas storage bag properties.
Working Temperature
-30℃ to 70℃
Standard Accessories
1/2" or 3/4" Gas Ball Valve (Inlet/Outlet), Pressure Relief Safety Vent (Optional)
Custom valve sizes available for seamless digester pipe integration
OEM Service
Logo Printing, Custom Dimensions. Simple schematic drawings provided for pre-production confirmation.
Service Life
6 Years Under Normal Agricultural Use

Anaerobic Digester Gas Bag Gallery

Angled view of a heavy-duty red mud PVC anaerobic digester bladder showing double-welded seams.
Red Mud PVC Digester Bladder
Fully inflated methane expansion vessel for biogas system pressure management.
Methane Expansion Vessel
Cylindrical low pressure biogas buffer tank for industrial anaerobic digester systems.
Low Pressure Biogas Buffer Tank
Detailed view of the H2S resistant biogas storage bag valve and secure metal flange.
H2S Resistant Gas Valve
Large scale external gas storage unit for farms undergoing quality inspection in factory.
External Gas Storage Unit for Farms
Close up of industrial anaerobic digestion components featuring a stainless steel ball valve.
Industrial Valve Components
Bancy factory shot of a double welded methane recovery bag for anaerobic digestion.
Double Welded Methane Recovery Bag
Compact cylindrical biogas flow fluctuations damping bag for stable gas supply.
Flow Damping Storage Bag
Side view of a large volume biogas accumulator for anaerobic digestion setup.
Biogas Accumulator Unit

Versatile Applications Beyond Farming

Dairy Farm Energy Recovery with an Anaerobic Digester Gas Bag

Managing daily manure from hundreds of cows requires a reliable external gas storage unit for farms. Our bags safely store methane produced during peak fermentation, acting as a crucial biogas accumulator for anaerobic digestion to power milking parlors and water heaters.

Swine Waste Odor Control (Pig Farms)

Swine waste generates high levels of corrosive gases. Our H2S resistant biogas storage bag is specifically engineered for pig manure digesters. It converts environmental hazards into clean fuel, reducing farm odors while providing energy independence.

System Pressure Management

Fluctuations in gas production can damage rigid components. By installing our bag as a methane expansion vessel for biogas system, you create a flexible safety buffer. It absorbs sudden gas spikes and prevents vacuum-induced damage during extraction.

Gas Flow Stabilization

For generators that require a steady feed, this is the perfect biogas flow fluctuations damping bag. It smooths out the peaks and troughs of the digestion cycle, ensuring that your CHP (Combined Heat and Power) system receives a consistent, stable flow of fuel.

Large-Scale Industrial Digesters

When concrete gas holders are too expensive, our flexible units offer a smart secondary containment gas holder for biogas. They provide extra buffering volume for municipal or industrial anaerobic plants, maximizing methane harvest at a fraction of the cost.

Modular Biogas Components

Our gas bags are designed to be high-performance industrial anaerobic digestion components. They ship flat and require zero heavy machinery for setup, making them the ideal choice for contractors building modular waste-to-energy systems in remote locations.

Frequently Asked
Questions

Answers to common queries regarding installation and materials.

How does this bag manage pressure fluctuations in the digester?

Our system is designed to function as a low pressure biogas buffer tank. As methane is produced, the bag expands safely to accommodate the volume. This prevents system over-pressurization, acting as a flexible methane expansion vessel for biogas system that protects your existing pipeline and reactor.

Absolutely. We utilize a specialized red mud PVC anaerobic digester bladder material that is highly H2S resistant. Unlike standard plastics, our fabric is specifically formulated to withstand the harsh chemical environments of pig and dairy manure digestion without becoming brittle or leaking.

We use industrial-grade Double-Layer Reinforced Welding Technology. This ensures that every unit is a true double welded methane recovery bag. By reinforcing the seams with an extra layer, we achieve a 99% gas-tight retention rate, making our products more durable than standard single-weld alternatives.

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Company Advantages

Why Choose Bancy

As a direct source factory with 20+ years of manufacturing expertise, Bancy Solutions excels in delivering leak-proof, durable, and cost-effective liquid storage solutions. Our advantage lies in unique Double-Layer Reinforced Seam Technology ensuring superior reliability and longevity, backed by CE Certification.

Source Factory Direct

 

Direct from our factory floor to your site. Eliminate middlemen for competitive wholesale pricing and complete control over customization. With 5 production lines, we ensure rapid order fulfillment.

 

Our proprietary Dual-Layer Welding technology creates seams that are stronger than the fabric itself. Combined with High-Frequency welding for TPU, we guarantee a zero-leakage performance for critical liquids.

 

Certified by ISO 9001 and CE. Our products meet international safety standards, ensuring smooth customs clearance and reliable performance in over 50 countries worldwide.

 

From 500L to 500,000L, we engineer tanks to fit your exact specifications. Custom dimensions, specialized fittings (Camlock/NPT), and material selection (TPU/PVC) are our specialty.

Certifications

CE Certificate

CE Certificate

TUV Verified

TUV Verified

CCIC Inspection Report

CCIC Inspection Report