Teach you how to calculate the pressure loss of a Y-type filter
Release time:
2024-11-27
The Y-type filter is an essential device on the medium transport pipeline, usually installed at the inlet of pressure reducing valves, pressure relief valves, constant water level valves, or other equipment, to eliminate impurities in the medium and protect the normal use of valves and equipment. When selecting a Y-type filter, the calculation of filter resistance loss is usually involved. So how is the resistance loss of the Y-type filter calculated?
For Y-type and similar pipe fittings filters, the following formula can be used for calculation:
Relationship between the nominal diameter of the Y-type filter and the equivalent straight pipe length
ΔP - resistance loss, Pa
λ - friction coefficient, dimensionless
Re - Reynolds number, Re=(ω·dn)/u, dimensionless
ω - fluid velocity, m/s
ρ - fluid density, kg/m³
μ - dynamic viscosity, kg/m·s
u - kinematic viscosity u=μ/ρ, m²/s
L - equivalent straight pipe length, mm, for similar pipe fittings filters refer to the table 'Relationship between nominal diameter and equivalent straight pipe length of similar pipe fittings filters'
D - inner diameter of similar pipe fittings filter, mm
dn - equivalent diameter, mm, for similar pipe fittings filter take the inner diameter 'D', for shell-type filters take '4s/c'
S - liquid flow area, m²
C - liquid wetted perimeter (wet perimeter)
C = 2X(inner diameter of the cylinder + height of the cylinder), m
ξ - inlet resistance coefficient, take 1.1
ξ - outlet resistance coefficient, take 0.5
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