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Installation and initial operation
For low to medium viscosities, the pressure drop through the meter may be estimated by
one of the following formulas:
Equation 2-1:
ΔP = ( PD ) * ( μ )
ΔP = ( PD ) * ( v )
Where:
ΔP
PD
μ
v
SG
Note
μ = (v)*(SG)
14
Pressure drop estimation formulas
1
3
4
4
* ( SG )
or
1
4
* ( SG )
Estimated pressure drop
Pressure drop for water at expected flow rate (as taken from the chart)
Absolute viscosity in centispoise
Kinematic viscosity in centistokes
Specific gravity
"PT" Liquid Turbine Meters
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