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Recommended Air Hoses

Air Pressure

Some common cause of low air pressure
  • Demand is too high for supply machines do not perform at peak efficiency
  • Air leaks plant average is 20% of lost capacity
  • Undersized piping or connections
  • Friction loss from length, pipe bends, old pipes with internal corrosion
Characteristics Of Air Pressure in Hose
Pressure Drop Due to Friction in Hose 100 psi 50 Foot Lengths
cfm Hose Inside Diameter  
  1/4" 3/8" 1/2" 3/4" 1"
10 1.6 0.7
20 9.0 4.1 0.7 0.2
30 26.8 8.6 2.3 0.4 0.1
40 43.7 17.5 4.8 0.6 0.2
50 60.6 29.6 8.4 1.0 0.2
60 49.7 13.3 1.4 0.4

 

Characteristics Of Air Pressure in Pipe
Pressure Drop Due to Friction in Pipe   100 psi 50 Foot Lengths
cfm Nominal Pipe Size  
  1/4" 3/8" 1/2" 3/4" 1"
10 1.8 0.5 0.3
20 9.4 4.7 1.3 0.2
30 28.6 9.2 3 0.5 0.13
40 46.3 18.7 5.1 0.8 0.23
50 64.4 31 9.6 1.3 0.35
60 53.2 15.0 1.9 0.50

 

Recommended Air Hoses
Approx. Air Consumption
(cfm)
Minimal Air Hose Size (inches)
Length of Run
  0'-10' 10'-50' 50'-200'
0-20 5/16 3/8 1/2
20-40 3/8 1/2 1/2
40-75 1/2 1/2 3/4
75-120 3/4 3/4 1
120-140 1 1 1-1/4