General Terms and Conditions of Supply

3 Membrane Gasholder

3Master

Three membrane constant-pressure gasholders are designed to store biogas made from the anaerobic digestion of organic waste and sludge.

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They are manufactured with biogas resistant polyester reinforced PVC membranes seam welded by high frequency electronic machines. The exclusive 3MASTER system is designed to form an upper air chamber that gives a pneumatic push on the biogas chamber, which keeps the biogas chamber at a prefixed and constant positive pressure. The two chambers are divided from each other by a double membrane layer that ensures complete safety against the formation of a dangerous air and gas mixture. The one-piece gas chamber can be made in the factory, or on site. Closed piece construction prevents gas losses through the anchor bolts that fix the cover to the ground.

Main characteristics

High safety level

ECOMEMBRANE’S patented 3 membrane system negates any possibility of a gas and air explosive mix because the biogas chamber is completely divided from the air compensation chamber.

Low energy consumption

The compensation air blower only operates when the biogas is being used from the gasholder and switches off when the gasholder is filling. The air blower is controlled by a pressure sensor and an air valve is fitted to the air chamber and set to limit the maximum operating pressure ensuring constant pressure of the biogas throughout the filling and emptying cycle.

Long Life

3MASTER gasholders are UV resistant and designed to withstand substantial wind and snow loadings. The internal membrane is biogas tight.

3 Master

3 Master

3 Master

3 Master

3 Master

3 Master

3 Master

3 Master

3 Master

3 Master