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Do Firesafe™ devices affect the oxygen flow rate?

The Firesafe™ Cannula Valve and Firesafe™ Nozzle have been carefully designed to minimise resistance to the flow of oxygen.

Considering the worst case – an oxygen concentrator with a non-backpressure compensated flowmeter calibrated at atmospheric pressure. If two Firesafe™ valves were installed in series, at an oxygen flow of 5 l/min, the actual oxygen flow would be around 5.05 l/min when the flow indicator reads 5.00 l/min.

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