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UASB check-list: hydraulic parametersGradual expansion

Strainer

Input data

Diameter

Output data

Head loss coefficient (kQ)

Description

This calculation determines the head loss in a strainer, a device used to retain solid particles in hydraulic systems.

Based on the strainer diameter and fluid flow rate, the calculation provides:

  • The head loss coefficient KQK_Q, used in the equation hf=KQ⋅Q2h_f = K_Q \cdot Q^2.
  • The velocity of the fluid exiting the strainer.
  • The head loss caused by the fluid passing through the strainer.

These calculations help optimize strainer sizing and evaluate system efficiency.

Failed to load imageStrainer

Input and Output Data

Input

Parameter
Standard Units
Description
Diameter (DD)
mm
Strainer diameter
Flow rate (QQ)
m³/s
Fluid flow rate

Output

Parameter
Standard Units
Description
Head loss coefficient (KQK_Q)
-
Used in the equation hf=KQ⋅Q2h_f = K_Q \cdot Q^2
Velocity (UU)
m/s
Fluid velocity at the outlet
Kinetic energy per unit weight (U2/2gU²/2g)
m
Term used in the head loss equation
Head loss (hfh_f)
m
Head loss due to fluid passing through the strainer