Recommendations
Atmospheric pressure given altitudeHazen-Williams equation head lossGate valveDynamic viscosity of atmospheric airHead loss coefficient applicable to partially open gate and knife gate valvesSigma Mechanized inclined screen grid
Foot valve
Coefficient
Given the flow

Input data

Diameter

Coefficient (k)

Output data

Head loss coefficient (kQ)

Description

Given the diameter of the foot valve, calculates the head loss coefficients applied to the equation hf = kQ.Q² or: Given the flow and the diameter of the foot valve, calculates the minor losses.

References

  • AZEVEDO NETTO, J. M. DE. Manual de hidráulica. 9. Ed. São Paulo, Blucher, 2015.