C Reference FLUXUS G80x
UMFLUXUS_G8V4-6-1EN, 2018-10-10 157
C.2 Typical Roughnesses of Pipes
The values are based on experience and measurements.
C.3 Typical Properties of Selected Fluids at 20 °C and 1 bar
Material Absolute roughness [mm]
drawn pipes of non-ferrous metal, glass, plastics and light
metal
0…0.0015
drawn steel pipes 0.01…0.05
fine-planed, polished surface max. 0.01
planed surface 0.01…0.04
rough-planed surface 0.05…0.1
welded steel pipes, new 0.05…0.1
after long use, cleaned 0.15…0.2
moderately rusted, slightly encrusted max. 0.4
heavily encrusted max. 3
cast iron pipes:
bitumen lining > 0.12
new, without lining 0.25…1
rusted 1…1.5
encrusted 1.5…3
Fluid (display) Explanation Sound speed
[m/s]
Kinematic viscosity
[mm²/s]
Density
[g/cm³]
acetone acetone 1 190 0.4 0.7300
Ammonia(NH3) ammonia (NH
3
) 1 386 0.2 0.6130
Gasoline gasoline 1 295 0.7 0.8800
Beer beer 1 482 1.0 0.9980
BP Transcal LT BP Transcal LT 1 365 20.1 0.8760
BP Transcal N BP Transcal N 1 365 94.3 0.8760
Diesel diesel 1 210 7.1 0.8260
natural gas, standard
composition
424 0.0 0.0000
Ethanol ethanol 1 402 1.5 0.7950
HF acid 50% hydrofluoric acid 50 % 1 221 1.0 0.9980
HF acid 80% hydrofluoric acid 80 % 777 1.0 0.9980
Glycol glycol 1 665 18.6 1.1100
20% Glycol / H2O glycol/H
2
O, 20 % 1 655 1.7 1.0280
30% Glycol / H2O glycol/H
2
O, 30 % 1 672 2.2 1.0440
40% Glycol / H2O glycol/H
2
O, 40 % 1 688 3.3 1.0600
50% Glycol / H2O glycol/H
2
O, 50 % 1 705 4.1 1.0750
ISO VG 100 ISO VG 100 1 487 314.2 0.8690
ISO VG 150 ISO VG 150 1 487 539.0 0.8690
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