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Oxygen Cylinder Duration - Constant Mode
The following tables provide approximate duration times for B (M-6) and E (M-24) oxygen tanks.
Please note that these gures are only meant to serve as a guide.
Note: Actual tank durations will depend on the initial fullness of the tank and other factors such
as leaks and gauge accuracy.
Table 1: Cylinder Size B (M-6) 150 liters when full
Flow Setting Tank duration in hours
1 2.5
2 1.3
3 0.8
4 0.6
5 0.5
Table 2: Cylinder Size E (M-24) 616 liters when full
Flow Setting Tank duration in hours
1 10.3
2 5.1
3 3.4
4 2.6
5 2.1
Example 1: M6 tank, ow setting = 3
• Using table 1, nd ow setting of 3
• The approximate tank duration at 3 lpm = 0.8 hours
Exampe 2: E tank, ow setting = 2
• Using table 2, nd ow setting of 2
• The approximate tank duration at 2 lpm = 5.1 hours
• The approximate tank duration at 2 lpm = 5.7 hours
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