Pressure Drop Reference Chart Oxygen
Pressure Drop In Oxygen Hose
Delivery
Pressure
LB.PER
SQ. IN.
Oxygen
Flow
CU. FT.
SQ. IN.
Pressure Drop LB. per SQ. In.
3/16" Hose 1/4" Hose 5/16" Hose 3/8" Hose
Hose Length in Feet
12.5 25 50 100 12.5 25 50 100 12.5 25 50 100 12.5 25 50 100
10 100 5.0 6.3 2.0 3.8 6.0 * * * 2.3 * * * 2.0
250 9.4 2.7 4.1 5.9 * * 3.3 6.4
25 100 3.6 5.7 8.2 13.4 * * 2.9 4.3 * * * * * * * *
250 13.2 18.3 6.3 7.9 11.7 16.8 * 2.4 3.2 6.7 * * * 3.7
500 21.5 6.3 8.7 12.1 19.9 2.7 4.6 6.9 11.9
50 100 2.0 3.4 5.9 9.3 * * 2.0 2.7 * * * * * * * *
250 8.0 12.5 19.4 2.7 5.0 7.9 11.0 * * 2.2 3.9 * * * 2.6
500 14.1 18.2 3.4 5.9 7.7 13.3 * 2.9 4.7 8.0
750 8.8 12.3 17.8 3.8 6.0 9.8 10.9
75 100 * 2.6 3.8 7.1 * * * 2.8 * * * * * * * *
250 6.0 9.4 13.3 23.1 3.0 3.8 6.0 8.2 * * * 2.8 * * * 2.0
500 19.7 10.7 13.8 19.8 2.5 3.9 6.3 9.4 2.0 3.4 5.9
750 22.5 6.6 8.8 13.7 18.8 2.7 4.1 7.0 12.2
1,000 11.8 14.7 22.6 4.9 6.9 12.0 20.3
100 100 * * 2.7 4.6 * * * * * * * * * * * *
250 4.7 6.7 10.3 16.9 2.2 2.8 4.3 6.0 * * * 2.2 * * * *
500 14.1 21.0 8.1 10.8 15.0 21.2 2.0 2.9 4.4 7.1 * * 2.1 4.6
750 17.7 23.0 32.3 42.8 4.7 6.9 10.3 15.4 * 2.9 4.9 8.7
1,000 31.0 37.0 53.0 68.5 8.6 11.8 17.4 3.1 5.2 8.8 14.4
1,500 65.5 82.0 19.1 7.7 11.8 19.4

* Indicates pressure drop of less than 2.0 per sq. in.
NOTE: To obtain the recommended inlet pressure at the apparatus, add the pressure drop figure ( shown above ) to the delivery pressure at the regulator. Do not exceed 15 PSIG for acetylene.