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DUNGS , DUNGS Vietnam , DUNGS Viet nam ,  DUNGS COMBUSTION CONTROLS , 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.