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Technical Support Document

Medical Oxygen Cylinder Charge Durations

May 15, 2007

Duration of Use (in Hours) at Different Regulator Flow Rates
Common Name MD ME MM
Industry Letter Designation A   B     C D   E      
Product Identifer Cliff 9101 9163 9077 9157 9155 9020 9021 9205 9022 9156 9164 9158
Catalina M1.5 M4 M6 ML6 ML7 M9 M15 M22 M24 M60 M90 M122 M150
cylinder diameter in  2.51 3.21 3.20 4.38 4.38 4.38 4.38 5.25 4.38 7.25 7.25 8.00 8.00
mm 63.75 81.53 81.28 111.25 111.25 111.25 111.25 133.35 111.25 184.15 184.15 203.20 203.20
cuft capacity (min) cuft 1.5 4.0 6.0 6.0 7.0 9.0 15.0 22.0 24.0 60.0 90.0 122.0 150.0
liters 42.5 113.3 169.9 169.9 198.2 254.9 424.8 623.0 679.7 1699.2 2548.8 3455.0 4248.0
Continuous Flow Rates Hours of Use 
 
0.5  l/min 1.42 3.78 5.66 5.66 6.61 8.50 14.16 20.77 22.66 56.64 84.96 115.17 141.60
0.02  cuft/min                        
1  l/min 0.71 1.89 2.83 2.83 3.30 4.25 7.08 10.38 11.33 28.32 42.48 57.58 70.80
0.04  cuft/min                        
2  l/min 0.35 0.94 1.42 1.42 1.65 2.12 3.54 5.19 5.66 14.16 21.24 28.79 35.40
0.07  cuft/min                        
3  l/min 0.24 0.63 0.94 0.94 1.10 1.42 2.36 3.46 3.78 9.44 14.16 19.19 23.60
0.11  cuft/min                        
4  l/min 0.18 0.47 0.71 0.71 0.83 1.06 1.77 2.60 2.83 7.08 10.62 14.40 17.70
0.14  cuft/min                        
5  l/min 0.14 0.38 0.57 0.57 0.66 0.85 1.42 2.08 2.27 5.66 8.50 11.52 14.16
0.18  cuft/min                        
6  l/min 0.12 0.31 0.47 0.47 0.55 0.71 1.18 1.73 1.89 4.72 7.08 9.60 11.80
0.21  cuft/min                        
8  l/min 0.09 0.24 0.35 0.35 0.41 0.53 0.89 1.30 1.42 3.54 5.31 7.20 8.85
0.28  cuft/min                        
10  l/min 0.07 0.19 0.28 0.28 0.33 0.42 0.71 1.04 1.13 2.83 4.25 5.76 7.08
0.35  cuft/min                        
15  l/min 0.05 0.13 0.19 0.19 0.22 0.28 0.47 0.69 0.76 1.89 2.83 3.84 4.72
0.53  cuft/min                        
20  l/min 0.04 0.09 0.14 0.14 0.17 0.21 0.35 0.52 0.57 1.42 2.12 2.88 3.54
0.71  cuft/min                        
25  l/min 0.03 0.08 0.11 0.11 0.13 0.17 0.28 0.42 0.45 1.13 1.70 2.30 2.83
0.88  cuft/min                        
30  l/min 0.02 0.06 0.09 0.09 0.11 0.14 0.24 0.35 0.38 0.94 1.42 1.92 2.36
1.06  cuft/min                        



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