Covering a
green future

Double Membrane Cover
Our Double Membranes give you the opportunity to store more gas in your plant(s). This way, you are always in control of how much gas you want to take out. Especially in combination with our Biogas Domes (gas storage – see flyer), our Double membranes could be very interesting for you!
Included components:
- Quality membranes: inner membrane
- Quality membranes: outer membrane
- Quality membranes: clamping profile set
- Support construction: column
- Support construction: crown ring
- Support construction: belts
- Over-/underpressure valve
- Ventilator system
- Gas Volume Measurement Systems | optional
- Desulfurization net | optional
- Rainskirt | optional
Benefits for you
Our Double Membranes can be used for anaerobic digestion installations in the agricultural market as well as for industrial wastewater treatment plants. We always deliver a complete, safe and high quality product. Our Double Membranes are 100% frequency welded and available up to a diameter of 40 meter. Our experienced and skilled installation and service crew will install the products competently. This means during the entire process you have nothing to worry about!
Technical specifications
- 100% High-frequency welded membranes
- Available up to a diameter of 40 meters
- Operating pressure up to 20 mBar
- Lowest possible gas permeability
- Statical calculation applied to complete installation

Double Membrane Cover components
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Chemical anchor rod
A stainless steel chemical anchor rod with M12 thread.
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Belt Buckle
A stainless steel buckle for attaching the bands from the crown ring.
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Sight glass 500
A sight glass to be able to look into the tank via the membranes.
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SikaFlex
Multifunctional sealant
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SikaFlex gun
Tool for applying multifunctional sealant.
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Protection felt
The felt is mounted on the tank wall to prevent cracks in the membrane due to sharp edges.
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PES strap
It prevents the inner membrane to touch the slurry.
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EPDM Lining
EPDM lining for making an installation gas-tight with a clamping hose system.
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Gasband EPDM
An EPDM gas-tight tape suitable for gas-tightening 2 objects that are mounted against each other.
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Rain skirt black
A black rain skirt ensures that the insulation behind the cladding cannot get wet. It also has a cosmetic value for many tanks to see no edges and for a better transition in the environment.
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Crownring SS-316
A stainless steel crown ring is central to a tank. We have a special type of crownring available.
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Desulfurization Net
The net has been made out of very strong PE material, width a maze width of 10 x 10 cm.














