Gas-Tight Membrane Fabric for Double Membrane Gas Holders
DERFLEX manufactures and supplies PVC/PVDF coated polyester membrane fabric for double membrane gas holders, biogas storage systems, anaerobic digester covers, tank-mounted gas holders, slab-mounted gas holders and OEM gas storage membrane fabrication.
Our membrane material is developed for gas tightness, outdoor weather resistance, welding reliability, chemical exposure, UV stability and long-term performance in biogas storage environments.
- Inner, outer and bottom membrane options
- PVC / PVDF coated polyester fabric
- Gas-tight membrane structure direction
- HF / RF / hot-air welding compatibility
- UV, FR, anti-mildew and anti-wicking options
- OEM GSM, color, width and coating design
Engineered Membrane Fabric System
A double membrane gas holder depends on different membrane layers. The outer membrane protects the system, the inner membrane stores gas, and the bottom membrane or anchoring area supports sealing and installation.
What Is a Double Membrane Gas Holder Membrane?
A double membrane gas holder membrane is a reinforced coated fabric system used to build flexible biogas storage structures. It normally includes an outer membrane for weather protection and structural stability, an inner membrane for gas containment, and sometimes a bottom membrane for sealing and foundation connection.
For Gas Holder Manufacturers
DERFLEX supplies roll goods and customized membrane fabric for gas holder manufacturers, membrane fabricators, EPC contractors and biogas system builders. The material can be developed according to tank size, gas pressure, membrane position, climate, welding process and installation method.
- Suitable for tank-mounted and ground-mounted gas holders
- Custom membrane fabric for inner, outer and bottom layers
- Supports OEM material standardization for repeat projects
For Biogas Storage Projects
The membrane fabric is used in wastewater treatment, anaerobic digestion, agricultural biogas, landfill gas, food waste treatment and renewable energy projects where gas storage must remain stable, safe and easy to maintain.
- Low-pressure biogas storage applications
- Flexible gas storage with stable pressure control
- Membrane solution for new systems and replacement projects
Performance Advantages of DERFLEX Gas Holder Membrane Fabric
A strong double membrane gas holder membrane must balance gas retention, tensile strength, seam reliability, outdoor durability, chemical resistance and project fabrication requirements.
Gas-Tight Inner Membrane Direction
The inner membrane can be developed for reduced gas permeability and stable biogas containment, helping support reliable gas storage and pressure regulation.
PVDF Outdoor Surface Option
PVDF surface direction improves weathering, UV resistance, dirt release and clean appearance retention for exposed outer membrane applications.
High-Tenacity Polyester Reinforcement
Reinforced polyester base fabric helps provide tensile strength, tear resistance and dimensional stability for fabricated gas holder membrane panels.
Welding & Fabrication Reliability
DERFLEX membrane fabric can be matched to HF/RF welding, hot-air welding or hot-wedge welding based on the buyer’s fabrication equipment.
Chemical & Moisture Resistance
Biogas environments may include methane, carbon dioxide, hydrogen sulfide, moisture and condensate. Coating structure can be selected for gas-contact and outdoor conditions.
OEM Project Customization
DERFLEX can customize GSM, thickness, base fabric, coating formula, color, roll width, surface treatment, FR, UV, anti-mildew, packaging and branding.
Double Membrane Gas Holder Membrane Specification Direction
Final values should be confirmed according to gas holder diameter, storage volume, gas pressure, membrane layer, wind load, snow load, gas composition and welding method.
| Item | DERFLEX Custom Direction | Buyer Value |
|---|---|---|
| Product Name | Double Membrane Gas Holder Membrane Fabric | Clear material positioning for gas holder manufacturers and biogas storage projects |
| Base Fabric | High-tenacity polyester fabric, custom denier and weave available | Supports tensile strength, tear resistance and dimensional stability |
| Coating System | PVC coated, PVC/PVDF coated or lacquered membrane fabric | Balances weldability, flexibility, gas barrier direction and outdoor durability |
| Typical Weight Range | Approx. 900gsm – 1600gsm, project-based customization | Flexible choice for inner, outer and bottom membrane requirements |
| Membrane Position | Outer membrane, inner membrane, bottom membrane, cover membrane | Different structure can be matched to different functional layers |
| Surface Direction | PVDF, acrylic lacquer, dirt-repellent or anti-aging surface available | Improves weathering, cleaning, UV resistance and surface service life |
| Welding Method | HF/RF welding, hot-air welding or hot-wedge welding depending on formula | Supports professional panel fabrication and installation |
| Optional Performance | UV, FR, anti-mildew, anti-wicking, cold resistance, chemical resistance | Allows regional, climate and project-specific customization |
| Main Applications | Double membrane gas holder, biogas dome, digester cover, gas bag, lagoon cover | One membrane material family for multiple gas storage systems |
Note: The above table is a specification direction for buyer evaluation. Final product data, tolerances and test standards should be confirmed after DERFLEX sample approval.
Outer Membrane, Inner Membrane and Bottom Membrane: One Gas Holder, Three Material Priorities
Competitor pages often describe the complete gas holder. DERFLEX focuses on the membrane fabric itself: the layer function, coating structure, surface treatment and welding behavior that decide long-term performance.
Outer Membrane
Focus on PVDF surface, UV stability, weathering resistance, wind/snow load direction, tensile strength and clean appearance.
Inner Membrane
Focus on gas tightness, methane containment, chemical resistance, welding reliability and flexible movement during gas volume changes.
Bottom Membrane
Focus on sealing performance, foundation connection, dimensional accuracy, anchoring compatibility and installation stability.
Applications of Double Membrane Gas Holder Membrane Fabric
DERFLEX membrane fabric supports biogas storage, renewable energy, wastewater treatment, agricultural waste, landfill gas recovery and industrial odor-control projects.
Double Membrane Gas Holders
Inner and outer membrane fabric for low-pressure gas holder systems.
Tank-Mounted Gas Holders
Membrane fabric for gas holder systems installed on digesters or storage tanks.
Ground-Mounted Gas Holders
Membrane material for slab-mounted gas holders installed on concrete foundations.
Anaerobic Digester Covers
Flexible cover membrane for gas collection, odor control and weather protection.
Biogas Domes
Reinforced membrane fabric for dome-style biogas storage and digester roof structures.
Biogas Bags
Weldable coated fabric for flexible gas bags and custom storage bladder systems.
Lagoon Gas Covers
Membrane fabric for manure lagoons, wastewater lagoons and methane recovery covers.
OEM Gas Storage Systems
Customized membrane roll goods for system manufacturers and membrane fabricators.
DERFLEX Membrane Fabric vs Ordinary PVC Fabric vs Rigid Storage
A professional gas holder membrane must be selected by function, not only by price or thickness.
Ordinary PVC Fabric
- Made mainly for waterproof covering
- Not optimized for gas containment
- Limited biogas chemical-resistance direction
- Unclear welding and gas-barrier testing
- Not ideal for professional gas holder manufacturing
DERFLEX Gas Holder Membrane
- Designed for biogas storage membrane applications
- Inner, outer and bottom membrane directions
- PVC/PVDF coating and surface customization
- Weldable, reinforced and fabrication-friendly
- Balanced cost, performance and OEM supply stability
Steel / Concrete Storage
- Rigid structure with higher construction burden
- Less flexible storage volume behavior
- Corrosion and coating maintenance concerns
- Longer installation cycle in many projects
- Suitable for selected fixed-storage engineering cases
Why Choose DERFLEX as Your Double Membrane Gas Holder Membrane Manufacturer?
DERFLEX supports gas holder manufacturers, EPC contractors, membrane fabricators and biogas system suppliers with coated membrane fabric, OEM customization and export-ready communication.
Coated Fabric Manufacturing Focus
DERFLEX focuses on PVC coated fabrics, PVDF surface materials and industrial textile solutions for demanding flexible material applications.
Layer-Specific Material Matching
We help buyers define outer membrane, inner membrane and bottom membrane requirements instead of using one generic fabric for all functions.
OEM Specification Support
GSM, thickness, color, width, coating, PVDF surface, FR, UV resistance, anti-mildew, anti-wicking and packaging can be customized.
Welding Process Compatibility
DERFLEX can coordinate material direction with HF/RF welding, hot-air welding or hot-wedge welding according to buyer fabrication processes.
Project Procurement Logic
For repeat gas holder projects, DERFLEX helps standardize roll width, color, coating system, inspection requirements and packaging.
Export-Ready Service
DERFLEX supports international buyers with clear communication, material recommendation, sampling, quotation and long-term supply coordination.
How to Select Membrane Fabric for Double Membrane Gas Holders
A clear purchasing brief helps reduce sampling time and makes the material recommendation more accurate.
Define Gas Holder Type
Tank-mounted, slab-mounted, dome cover, flexible gas bag or custom system.
Confirm Membrane Layer
Outer membrane, inner membrane, bottom membrane or replacement membrane.
Share Project Conditions
Diameter, storage volume, gas pressure, wind load, snow load and climate.
Match Welding Method
HF/RF welding, hot-air welding, hot-wedge welding or custom fabrication process.
Approve Sample & Spec
Confirm GSM, thickness, surface, color, roll width, testing and packaging.
Example Project: OEM Membrane Fabric for Gas Holder Manufacturer
This example shows how DERFLEX helps a gas holder manufacturer convert project requirements into a repeatable membrane material specification.
Buyer Challenge
A gas holder manufacturer needed different membrane directions for exposed outer membranes and gas-contact inner membranes. The previous material did not clearly separate UV, weathering, gas tightness and welding needs.
DERFLEX Solution
DERFLEX recommended a PVDF surface direction for the outer membrane and a gas-tight PVC coated direction for the inner membrane, with confirmed roll width, color, weight and welding process.
Procurement Value
The buyer received clearer material structure, more consistent roll supply, easier fabrication planning and a better basis for future double membrane gas holder projects.
Related DERFLEX Biogas Membrane Solutions
Build a stronger gas storage membrane procurement system with related DERFLEX product and application pages.
Double Membrane Gas Holder Membrane FAQ
These questions help buyers evaluate membrane fabric before requesting samples or quotation.
What is a double membrane gas holder membrane?
It is a reinforced coated membrane fabric used to create the flexible layers of a double membrane gas holder. The system normally includes an outer membrane for weather protection and an inner membrane for gas containment.
What is the difference between the inner membrane and outer membrane?
The outer membrane focuses on UV resistance, weathering, wind/snow load direction and surface durability. The inner membrane focuses on gas tightness, chemical resistance, flexibility and welding reliability.
Is PVC/PVDF membrane fabric suitable for double membrane gas holders?
Yes. PVC coating supports flexibility and weldability, while PVDF surface treatment can improve outdoor weathering, self-cleaning appearance and surface durability for exposed outer membrane applications.
Can DERFLEX customize the membrane fabric?
Yes. DERFLEX can customize GSM, thickness, base fabric, color, roll width, coating structure, PVDF surface, FR, UV resistance, anti-mildew, anti-wicking and OEM packaging.
Which welding methods are supported?
Depending on formula and structure, DERFLEX membrane fabric can be developed for HF/RF welding, hot-air welding or hot-wedge welding. Sample approval is recommended before mass production.
What information should I provide for a quotation?
Please provide gas holder type, membrane layer, tank diameter, storage volume, gas pressure, wind/snow load, gas composition, welding method, color, roll width, quantity and project location.
Does DERFLEX supply finished gas holders or membrane fabric?
DERFLEX focuses on coated membrane fabric and customized membrane material supply. It supports gas holder manufacturers, membrane fabricators, EPC contractors and OEM biogas system suppliers.
Get a Custom Membrane Specification for Your Double Membrane Gas Holder
Send your gas holder type, membrane position, tank size, storage volume and welding method. DERFLEX will help recommend a practical PVC/PVDF coated membrane fabric direction for your project.