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Oxygen Cleaning. Introduction. Elimination of contaminants We will cover: EAN40 above and below Oxygen cleaning Cleaning cylinders & valves Oxygen compatible Oxygen service FOR INFORMATION ONLY – further training required. EAN 40 above & below. EAN 40 or below Any scuba equipment
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Introduction Elimination of contaminants • We will cover: • EAN40 above and below • Oxygen cleaning • Cleaning cylinders & valves • Oxygen compatible • Oxygen service FOR INFORMATION ONLY – further training required
EAN 40 above & below • EAN 40 or below • Any scuba equipment • EAN 40 above • Method of filling • Air quality standards • In oxygen service • Manufacturers recommendations
Oxygen Cleaning • Removes all contaminants • Organic • Hair / skin flakes / saliva • Wood / paper / lubricants • Inorganic • Grinding dust / sand / lint
Oxygen Cleaning • Cleaning Agents: • Biox • Distilled water • Dilute citric acid • Non-ionic surfactant • Simple Green • Check data sheet with manufacturer • Disposal
Remember • Ease of contamination • Disassembly • Reassembly • Qualified technician • Regulator • Cylinder & valve Gas Blender does not qualify to undertake oxygen cleaning
Cylinders • Ensure cylinder empty • Check using low pressure air • Remove valve • Do not use calibrated torque wrench • Remove accessories • Clean loose paint/rust flakes • Remove CIP label
Cleaning Valve • Dismantle the valve • Corrosion removed • Soak in warm detergent > 10 minutes • Rinse in warm water bath • Components can be air or oven dried • Use CLEAN air • Replace O-rings & seals
Cleaning Cylinder • Cleaning agent diluted in hot water (60 C) • Wash inside cylinder • Shaken, scrubbed or tumbled • Thoroughly rinsed • Equipment must be CLEAN • Dry cylinder hot or cold air • Care with heating cylinders • Check manufacturer’s recommendations
Reassembly • Visually inspect cylinder and valve • Flaws - check with thread gauge • Check clean and dry • Screw in valve by hand • Tighten according to manufacturers specification • Torque wrench requires calibration
Refilling • Refill cylinder to WP • Check for leaks • Repair paint covering • Attach Oxygen Clean sticker with date • Keep log of cylinders & valves cleaned • Self cleaned – invalidates VIP
Oxygen Service • Oxygen Compatible • Components for high oxygen content • Reduce risk of fire • Compression rate low • Flow rate slow • In Oxygen Service • CLEAN • COMPATIBLE
Summary • We covered: • EAN 40 above and below • Oxygen cleaning • Cleaning cylinders & valves • Oxygen compatible • Oxygen service