Recommendations
Centrifugal Decanter (Pieralisi)

Head loss coefficient applicable to totally open gate valve

Input data

Diameter

a/A

Output data

k for θ = 10°

kQ for θ = 10°

k for θ = 20°

kQ for θ = 20°

Description

Find the head loss coefficients for fully open gate valves.

Given the diameter and the passage area/pipe area of a gate valve, calculates de head loss coefficients applied to the formulae:

  1. For k applicable to: $$ hf = \frac{k \cdot U^2}{2g} $$
  2. For $k_Q$ applicable to: $$ ℎf = k_Q\cdot Q^2 $$

Gate valveGate valve

References

  • Miller, Donald S. Internal flow systems. BHRA Fluid Engineers, 1978.