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MIL-DTL-24788 Coupling Assembly, Semi-Dry-Break, Quick-Disconnect Fuel With Or Without Continuity SwitchThis specification covers the requirements for acquisition of a semi-dry-break, quick-disconnect fuel coupling assembly, with or without continuity switch used in connecting fueling nozzles to aircraft refueling hoses and refueling pantographs in aircraft refueling systems.

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MIL-DTL-24788A
TABLE IV. Temperature and fuel resistance test parameters.
Temperature
Condition
Test Period
Soak Time
(+/- 1oC/2oF)
Ambient
24 hours
1
(22 °C/72 °F)
High
2
24 hours
(54 °C/130 °F)
Ambient
24 hours
3
(22 °C/72 °F)
Low
4
24 hours
(-34 °C/-30 °F)
4.5.5 Total pressure loss. The semi-dry-break, quick-disconnect coupling assembly, with a 60-mesh strainer
installed, shall be installed in a test set up similar to Figure 3. The test shall be conducted at flow rates from 0 to 600
gal/min using test fluids specified in 3.3.2. Sufficient data shall be taken to plot a "Total Pressure Loss vs. Flow"
curve. Failure to meet the requirements of 3.10.5 shall be cause for rejection.
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