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Calculations

Head loss coefficient applicable to partially open y valve

Default

Input data

DIameter

Opening section

Output data

k applicable to h = k.U²/2g

kQ applicable to h = kQ.Q²

Description

Find the head loss coefficients for partially y valves.

Given the diameter and the opening relation of an y valve, calculates the head loss coefficients , for the expressions:

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

Y valve

Description

Find the head loss coefficients for partially y valves.

Given the diameter and the opening relation of an y valve, calculates the head loss coefficients , for the expressions:

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

Y valve

References

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