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Air Consumption

Air Consumption

Air Consumption. Learning Objectives:. Correctly calculate the surface air consumption rate in either psi/min. or ft 3 /min. given: depth, time at depth, and amount of air used. Correctly calculate the air consumption rate for any depth, given the consumption rate for any other depth.

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500 views • 20 slides
Pressure Volume Review

Pressure Volume Review

Pressure Volume Review. Depth Pressure Volume Air Con. 0 fsw 1 atm 60 cu in 20 psi/min 33 fsw atm 30 cu in psi/min fsw 3 atm cu in psi Min fsw atm 15 cu in 80 psi/min 132 fsw atm cu in psi/min. Depth Pressure Volume Air Con.

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128 views • 3 slides
Pressure Testing with a DARTT Recorder

Pressure Testing with a DARTT Recorder

To aid in testing, Test Oil Pressure Gauge and Hold Period can be combined into a rate of change (ROC). For example, where the Hold Period = 10min and the Allowable Pressure Loss = 30psi, the Average Allowable ROC = 3psi/min. That is, if the average rate of Pressure Calculator change during the 10min Hold Period =< 3psi/min, then the hold and allowable loss component of the test specification will have been achieved.

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Digital Pressure Gauge | Dart Technologies Pty Ltd

Digital Pressure Gauge | Dart Technologies Pty Ltd

To aid in testing, Test Pressure and Hold Period can be combined into a rate of change (ROC). For example, where the Hold Period = 10min and the Allowable Pressure Loss = 30psi, the Average Allowable ROC = 3psi/min. That is, if the average rate of Pressure Calculator change during the 10min Hold Period =< 3psi/min, then the hold and allowable loss component of the test specification will have been achieved.

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36 views • 3 slides
Pressure Decay Test Systems - Dart Technologies Pty Ltd

Pressure Decay Test Systems - Dart Technologies Pty Ltd

The Pressure Decay line turn from blue to green as the pressure tests ROC meets or exceeds the Average Allowable ROC for the pressure test specification. You can see approximately 1.5 min in to the 5 min hold period, the DARTT Recorder is showing an inevitable pass.

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37 views • 3 slides
Gas Pressure Testing Equipment | Dart Technologies Pty Ltd

Gas Pressure Testing Equipment | Dart Technologies Pty Ltd

Once we know the Average Allowable ROC, we apply it to a test by sampling a short duration of pressure x time data and multiply it out to display it as psi/min, then compare that to the specified Average Allowable ROC.

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44 views • 3 slides
Use A Dartt Recorder For Pressure Testing

Use A Dartt Recorder For Pressure Testing

Once we know the Average Allowable ROC, we apply it to a test by sampling a short duration of pressure x time data and multiply it out to display it as psi/min, then compare that to the specified Average Allowable ROC.

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39 views • 3 slides

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