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Klinger® Gaskets > Fluid Instrumentation > Piston valves > Technical data > Flow coefficient and zeta-values



  Fluid Instrumentation
Piston valves - Technical data
Flow coefficient and zeta-values
 
Type KVN
DN 10 15 20 25 32 40 50 65 80 100 125 150 200
kV 2 4,5 8 12,5 20,5 32 50 69 104 163 233 335 582
ζ 4 4 4 4 4 4 4 6 6 6 7,2 7,2 7,2
 
KV = Flow coefficient (m3/h)
ζ = Zeta-value
 
The values shown in the table have an accuracy of ± 10% and apply to water at a temperature of 20 °C and a density of approx. 1000 kg/m3.
 
Graphs and exact flow calculations for all KLINGER valves are available at request