MVD Dungs COMBUSTION CONTROLS Vietnam
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TÜV Standard for Biogas Components
The Octagon approval mark of TÜV SÜD applies to media- or flue-gas-charged components of fuel ducts and gas equipment (e.g. valves according to EN 161, pressure switches according to DIN EN 1854) of biogas installations operated with biogases and sewage gases according to
DVGW worksheet G 262.
Certification
The gas equipment safety and functional safety is proven by inspection and certification of the components on the basis of test standards for gas equipment parts.
Approvals
The appliances of the DUNGS biogas and special gas range have an EC type-examination certificate according to the EC gas appliances directive and EC pressure equipment directive based
on the corresponding harmonised EN standards
BiogasBiogas is one of the most successful renewable sources of energy. Biogas is formed during an anaerobic fermentation process of organic sub- stances such as liquid manure, plant residues or slaughtering waste in a fermenter.Biogas is an explosive mixture of methane (50-75 %), carbon dioxide (25-50 %) and other gas components such as nitrogen, ammonia and hy- drogen sulphide.
Owing to its physicochemical proper- ties, biogas attacks metals. This is why the corrosion behaviour must be taken into account when selecting materials. DUNGS standard biogas compo- nents, due to their special sealing materials and coatings, are suitable for use with biogas according to DVGW
Technology Single-stage solenoid valves for biogas and special gas applications accord- ing to TÜV Octagon approval mark for standard biogas components. Automatic shut-off valve according to EN 161 for gas burners and gas appli- ances:- max. operating pressure up toworksheet G 262.
