Atlas Copco GA 110 VSD+ Instruction Book page 62

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Reference
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Compressor room example, imperial units
Description
Install the compressor on a level floor suitable for taking its weight.
Compressed air outlet valve (not in scope of supply).
For SI units
Delivery pipe:
The maximum pipe length can be calculated as follows:
5
L = (dp x d x p) / (450 x Qc
L = Length of pipe in m
dp = Pressure drop (recommended maximum = 0.1 bar)
d = Inner diameter of the outlet pipe in mm
p = Absolute pressure at the compressor outlet in bar(a)
Qc = Free air delivery of the compressor in l/s
The connection of the air delivery pipe is made on top of the main air net pipe in order
to minimize carry-over of possible condensate residue.
For British/American units:
Delivery pipe:
The maximum pipe length can be calculated as follows:
5
L = 1470 ( (dp x d x p) / (Qc
L = Length of pipe in ft
dp = Pressure drop (recommended maximum = 1.45 psi)
d = Inner diameter of the outlet pipe in inch
p = Absolute pressure at the compressor outlet in psi
Qc = Free air delivery of the compressor in cfm
The connection of the air delivery pipe is made on top of the main air net pipe in order
to minimize carry-over of possible condensate residue.
1.85
)
1.85
) )
Instruction book
9829 3178 63