ATEX Spate Cleaner TANKO-EX-S and ATEX Spray Cleaner TANKO-EX-RB
3.4 Cleaning Agents
Due to the wide variety of practical cases of application and use for the cleaning device, it is NOT possible for AWH to recommend specific cleaning agents for the operating company.
The operating company holds sole responsibility for the type of cleaning media, their use and handling.
For this reason, AWH can provide the owner with a few reference points and notes, but only as a precautionary measure (for a device in a container), which must be observed and integrated into the owner's risk assessments.
NOTE ON EXPLOSION PROTECTION Before using the device in an Ex area, the technical rules for avoiding the dangers of explosive atmospheres must be observed. Non-compliance can result in the loss of explosion protection.
TRBS 2152 “Hazardous, potentially explosive atmosphere - General - ”
TRGS 727 “Prevention of ignition hazards due to electrostatic charge”
Excerpt from the TRGS 727 “Prevention of ignition hazards due to electrostatic charge”
Chapter 4 Electrostatic charges when handling liquids
“When filling and emptying containers with liquids, when recirculating, stirring, mixing and spraying liquids and also when implementing measuring, sampling and cleaning work, the liquids themselves or the interior of the container can be provided with a hazardous charge. The size and intensity of the charge generated depends on the properties of the liquid, its flow rate, the procedure, the size and geometry of the container as well as its material. When using water jets to clean metallic containers wetted with hydrocarbons, the container diameter must not exceed 3 m. Larger container diameters can lead to more dangerous charges If isolating/hydrocarbonated liquids (e.g. solvents) are used as a cleaning agent, the diameter of the container is limited to 3 m and the proportion of second phase liquid (e.g. water) must not exceed 1%. Cleaning agents may only be applied in an enclosed circuit if the level of contamination is kept below 1%. The accumulation of liquid in the container is to be avoided. When cleaning metallic containers with solvents containing hydrocarbons, a maximum working pressure of 50 bar must not be exceeded and the liquid flow rate must be less than 60 liters / minute. The steam blasting of containers with a volume of > 100 m³ is not permitted. Larger container volumes can lead to more dangerous charges
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3 Construction and Function
Translation-Operating/Installation Instructions 2017/10
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