The Centrifugal Pump Discharge Formula is

Answer: Option A

The centrifugal pump discharge formula is Q = π.D.B.V_f

Solution:

The discharge of a centrifugal pump is the product of the flow area of the pump and flow velocity. It is given as;

Q = Flow area at inlet x flow velocity at inlet = Flow area at outlet x flow velocity at the outlet

Q = A₁.V_f1=A₂.V_f2

Q = π.D₁.B₁.V_f1=.D₂.B₂.V_f2

Where;

• D₁ and D₂ = Diameter of the impeller at inlet and outlet.
• B₁ and B₂ = Width of the impeller at inlet and outlet
• V_f1 and V_f2 = Flow velocity and inlet and outlet.

Hence, the centrifugal pump discharge formula is Q = π.D.B.V_f

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