Biogas protective cover Cogatec®

for reservoirpolyesterdouble membrane

Optimum storage volume for your biogas plant The Cogatec double membrane gasholder is the ideal biogas roof for storing biogas. The geometry of the different spherical shapes ensures that the optimum gas storage volume is utilised. Monitoring is carried out by our state-of-the-art laser measuring system. Our system enables a flexible mode of operation. The roof system, designed for biogas plants, agricultural operations as well as sewage treatment and industrial plants, consists of two separate, high-frequency welded polyester membranes that are PVC-coated on both sides. The fabrics used impress with their low gas permeability, very high UV stability and the special, dirt-repellent top layer. The outer membrane of the double membrane gas reservoir absorbs the static loads caused by wind and snow loads. This allows the inner membrane to be operated almost without pressure, thus enabling a longer service life. Our membranes are provided with a keder in the clamping area, which diverts the forces arising from weather influences into the anchoring clamping rail in a form- and force-fitting manner. Optimised gas storage volume Our innovative roof construction enables an optimised gas storage volume due to the ideal spacing of the outer and inner membrane, as well as the separate fastening of the belt tensioning construction to the inner wall of the container. Possible thanks to integrated insulation We offer different insulation options for your double diaphragm gas storage tank.