What is flow throttling?
[′thräd·əld ′flō] (fluid mechanics) Flow which is forced to pass through a restricted area, where the velocity must increase.
How cavitation occurs in centrifugal pump?
Cavitation occurs when the liquid in a pump turns to a vapor at low pressure. It occurs because there is not enough pressure at the suction end of the pump, or insufficient Net Positive Suction Head available (NPSHa). As the liquid passes from the suction side of the impeller to the delivery side, the bubbles implode.
What will happen if the discharge of a centrifugal pump is throttled?
If the discharge of a centrifugal pump is throttled, then its suction lift will increase (by considering liquid level in suction pond/sump is same as before). When i say suction lift, i am directly pointing out the Static Suction Pressure of the pump. Because of throttling operation, flowrate of centrifugal pump will decrease.
What is the effect of a centrifugal pump on suction dynamics?
Throttling a centrifugal pump is equivalent to increasing the back pressure on the discharge side it has only a marginal effect on the suction dynamics. 8 clever moves when you have $1,000 in the bank.
Does the discharge pressure increase or decrease during suction?
It should remain the same I guess. Discharge and intake takes place separately, so the pump will do its duty ie increase discharge pressure. However, if throttling device is used in suction, the discharge pressure would decrease. Just a guess. Correct me if I am wrong.
What is the difference between intake and discharge pump?
Though the technique is reverse, concept is the same. It should remain the same I guess. Discharge and intake takes place separately, so the pump will do its duty ie increase discharge pressure. However, if throttling device is used in suction, the discharge pressure would decrease.