Is It Possible For A Centrifugal Pump To Suddenly Fail In Delivering When In Operation Due To Gland Problem?
Posted by admin on January 25, 2010 under Fluid Mechanics | 
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The centrifugal pump installed in my factory which sucks water from the tank below suddenly fails to deliver the solution .this happens when the pump is operational.Is it due to air ingress from the stuffing box?we have a conventional type asbestos gland packing .To rule out the usual possibilities i have checked the sucktion pipe and flanges for any leakage.
sivan_g7 said,
Centrifugal pumps are prone to problems with entrapped air preventing the flow out of the impeller. I’m not sure if ingress from the stuffing box could provide sufficient leakage to cause this, though you don’t say about the capacity/size of the pump or the mean time between failures.
Usually centrifugal pumps have to remain charged to ensure that they work, as they are not brilliant lifting fluids up if there is a lot of air around the impeller, is the discharge leaking, is there a NRV which isn’t functioning in the line somewhere. Worth rining the manufacturer and asking. Sorry can’t be more help.
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