Operating Nitrox SystemsOperating Nitrox SystemsOperating Nitrox SystemsOperating Nitrox Systems 1111
Presented by NuvairPresented by Nuvair
Operating Nitrox SystemsOperating Nitrox Systems 22
Membrane systems produce nitrox efficientlyMembrane systems produce nitrox efficiently
• Compressed air flows through the membrane• Nitrogen rich gas is expelled• Oxygen rich gas is produced
• Compressed air flows through the membrane• Nitrogen rich gas is expelled• Oxygen rich gas is produced
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Components of the membrane systemComponents of the membrane system
Intake hose
Membrane
Air FilterMixing Tube
Permeate O2Rich Gas
Nitrogenrelease
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Components of the membrane systemComponents of the membrane system
Heater
Analyzer
Filters
Regulator
HeaterThermostat
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System SpecificationsSystem Specifications
• Membrane temperature: 110 degrees F or 43 degrees C
• Operating pressure: 80-170 p.s.i., 6-12 bar
• Max input pressure: 300 p.s.i. or 21 bar
• Air supply quality: LP Grade D, HP Grade E
• Nitrox Range: 24% - 40%
• Membrane temperature: 110 degrees F or 43 degrees C
• Operating pressure: 80-170 p.s.i., 6-12 bar
• Max input pressure: 300 p.s.i. or 21 bar
• Air supply quality: LP Grade D, HP Grade E
• Nitrox Range: 24% - 40%
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The membrane is incorporated in these systemsThe membrane is incorporated in these systems
For dive operators who own HP compressors For dive operators
who want a complete nitrox solution
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Rotary Screw System OperationRotary Screw System Operation
• System is for dive operators who already own HP compressor
• System is for dive operators who already own HP compressor
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Rotary Screw System ComponentsRotary Screw System Components
Control Panel
PowerSwitch
Inline Permeate O2 Analyzer Membrane
Nitrox outTo HP
On/OffSwitch
Drier on/off switch
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Rotary Screw System ComponentsRotary Screw System Components
Operation Gauge
Adjust O2 %
HP Intake
Nitrox outTo HP
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Rotary System Rear ComponentsRotary System Rear Components
Heater ThermostatControl
Pressure switch
Waste air
Operating Nitrox SystemsOperating Nitrox Systems 1111
Easy operationEasy operation
• Always read the manual first!
• Steps vary depending on installation
• Check oil level & filters first
• Turn on drier
• Always read the manual first!
• Steps vary depending on installation
• Check oil level & filters first
• Turn on drier
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Calibrate the fill O2 analyzerCalibrate the fill O2 analyzer
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Follow the steps in the manualFollow the steps in the manual
• Turn on HP compressor
• Adjust fill whip allowing air to escape
• Calibrate permeate O2 analyzer
• Turn on LP compressor
• Turn on HP compressor
• Adjust fill whip allowing air to escape
• Calibrate permeate O2 analyzer
• Turn on LP compressor
Operating Nitrox SystemsOperating Nitrox Systems 1414
Follow all safety precautionsFollow all safety precautions
• Adjust input pressure to over 80 p.s.i. (5.5 bar)
• Verify thermostat operation
• Increase or decrease pressure to set final O2%
• Adjust input pressure to over 80 p.s.i. (5.5 bar)
• Verify thermostat operation
• Increase or decrease pressure to set final O2%
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Final adjustmentsFinal adjustments• Fill O2 analyzer should
read same as inline O2 analyzer
• You are ready to pump nitrox!
• Fill O2 analyzer should read same as inline O2 analyzer
• You are ready to pump nitrox!
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Always test the nitrox in the cylinder with an independent analyzer!Always test the nitrox in the cylinder with an independent analyzer!
• Have the customer analyze the gas and sign for it
• Have the customer analyze the gas and sign for it
Operating Nitrox SystemsOperating Nitrox Systems 1717
Components of the Voyager (nitrox in a box!)Components of the Voyager (nitrox in a box!)
Fill O2Analyzer
HP FilterCannister
Fill pressuregauge
Permeate O2Analyzer
Dial-A-PressureControl
LP Filters
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Additional Voyager components…Additional Voyager components…
HP Controls
LP OilLevel
HP OilLevel
Feed aircontrol
LP Gauges
TemperatureGauges
HeaterThermostat
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Using the VoyagerUsing the Voyager
• Always read the manual first!
• Check oil level & filters
• Check LP feed valve is off
• Start HP compressor
• Always read the manual first!
• Check oil level & filters
• Check LP feed valve is off
• Start HP compressor
Operating Nitrox SystemsOperating Nitrox Systems 2020
Using the VoyagerUsing the Voyager• Open one fill whip -
adjust to hold 1500 p.s.i. (103 bar)
• Drain condensate• Calibrate analyzers
• Open one fill whip - adjust to hold 1500 p.s.i. (103 bar)
• Drain condensate• Calibrate analyzers
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Operation is simple!Operation is simple!
• Adjust regulator initially for low pressure
• Turn on LP feed air valve
• Increase regulator pressure to 80-160 p.s.i. (5.5-11 bar)
• Adjust regulator initially for low pressure
• Turn on LP feed air valve
• Increase regulator pressure to 80-160 p.s.i. (5.5-11 bar)
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Operation is simple!Operation is simple!
• Wait for O2% to stabilize on permeate analyzer
• Adjust regulated input pressure
• Wait for correct nitrox % on the fill O2 analyzer
• When O2% is correct, attach whip & fill tank!
• Wait for O2% to stabilize on permeate analyzer
• Adjust regulated input pressure
• Wait for correct nitrox % on the fill O2 analyzer
• When O2% is correct, attach whip & fill tank!
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Always test the nitrox in the cylinder with an independent analyzer!Always test the nitrox in the cylinder with an independent analyzer!
• Have the customer analyze the gas and sign for it
• Have the customer analyze the gas and sign for it
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Operation of membrane systems is easy!Operation of membrane systems is easy!
• Membrane systems provide accurate nitrox mixtures.
• Membrane systems require the least amount of training.
• Membrane systems allow you to fill nitrox tanks at same rate as air tanks.
• Membrane systems provide accurate nitrox mixtures.
• Membrane systems require the least amount of training.
• Membrane systems allow you to fill nitrox tanks at same rate as air tanks.
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Thank you for attending!Thank you for attending!