Biogas System

The integrated Double Membrane Cover is installed directly on top of the anaerobic digester, combining production and storage in one unit.

Specifications:

Inter‑membrane pressure: 500–2000Pa (max. 3000Pa)

Tensile strength: ≥5000 N/5cm (DIN EN ISO 1421)

Methane permeability: ≤300 cm³/m²·d·bar

Fire rating: DIN 4102 B1

Operating temperature: -30°C to +70°C

Design life: 10+ years

Integration advantages:

Zero footprint – mounted on tank roof, no extra foundation.

Built‑in explosion‑proof blower and smart control system with remote pressure & volume monitoring.

Anti‑condensation and anti‑freezing design; compatible with concrete, glass‑fused‑to‑steel and stainless steel tanks.

What is a biogas system?

A biogas system covers the entire chain from feedstock feeding, anaerobic digestion, purification, to storage and utilisation. The storage link acts as a “pressure buffer” that directly determines the stability of the whole system. A double membrane cover – especially the integrated design – maximises space efficiency.

Qingdao Haiyue has long been active in the biogas system field. Our double membrane covers have been exported to many countries and are a trusted component for biogas system integrators worldwide.

Ideal for: New biogas plant power stations or biogas upgrading plant projects, simplifying pipeline layout and reducing system complexity.

Contact Qingdao Haiyue for an integrated storage solution tailored to your project.