
75
Diagram Pressure Loss
Pressure loss with fully opened gas dampers
For the various gas qualities it will be necessary to multiply the p value read as a function of the volumetric flow rate by the
specific gravity of the gas. Reading example:
damper dia. = 50 mm; V = 150 m³/h natural gas;
Δ
p reading = 6 mbar; specific gravity of natural gas = 0.81 kg/m³;
results in a pressure loss with fully opened gas damper,
Δ
p = 0.81 x 6 =
4.86 mbar
Gas volumetric flow rate
[m³/h]
V
·
Pr
ess
ur
e l
o
ss
Δ
p [m
bar]