CLEANING OF EQUIPMENT FOR OXYGEN SERVICE - AIGA
CLEANING OF EQUIPMENT FOR OXYGEN SERVICE - AIGA
CLEANING OF EQUIPMENT FOR OXYGEN SERVICE - AIGA
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1. Material / Size<br />
Appendix I: Cleaning of a transportable vacuum insulated vessel<br />
Inner vessel and outer jacket: Stainless steel.<br />
Volume: Up to 500 litres.<br />
2. Initial Cleaning Method<br />
54<br />
<strong>AIGA</strong> 012/04<br />
Shell and vessel ends are purchased pre-cleaned and packed to oxygen standard. Root weld should<br />
be by y TIG welding in order to ensure smooth root weld profile and avoid welding debris.<br />
3. Cleaning Method<br />
Before final welding and isolation of the inner vessel the surfaces are manually cleaned with acetone<br />
using a dry cloth.<br />
4. Pressure Test<br />
Carried out with nitrogen or oil free air. Testing is carried out in a special container or chamber<br />
capable of withstanding a potential explosion of the vessel.<br />
5. Inspection Method<br />
Wipe test and UV light inspection of parts before final welding.<br />
6. Conservation of Cleanliness<br />
At all stages parts are protected against contamination.<br />
Openings are closed with caps.<br />
7. Labelling<br />
"CLEANED <strong>FOR</strong> <strong>OXYGEN</strong> <strong>SERVICE</strong>"<br />
To be kept free from oil and grease<br />
Inspection date/stamp"
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