Large Double Suction Circ Water Pump
Large Double Suction Circ Water Pump
(OP)
I have a large 54" dia. double suction circ water pump that has had underfile removed from each vane by weld build up and grinding back to the orignal vane profile. The impeller vane in the area of the welds has 1/4" to 3/8" high lumps over a 6" x 3" area near the exit width. The impeller exit width is about 16" and vane thickness is about 1". The pump turns at 360 rpm. My question is:
Will the lumpiness of the weld repair cause hydraulic imbalance at this speed? Will it cause major performance issues? I was told by the repair vendor that the channels are so big that the lumpiness will little to no affect.
Does anyone agree, disagree, and why?
Thanks
Stan Kapushinski,
Systems Engineer
Will the lumpiness of the weld repair cause hydraulic imbalance at this speed? Will it cause major performance issues? I was told by the repair vendor that the channels are so big that the lumpiness will little to no affect.
Does anyone agree, disagree, and why?
Thanks
Stan Kapushinski,
Systems Engineer





RE: Large Double Suction Circ Water Pump
(My two cents: If a vendor is not willing to back up the words with a written piece of paper, it's better to reject the part if you have questions about the workmanship.)
Patricia Lougheed
******
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RE: Large Double Suction Circ Water Pump
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)
RE: Large Double Suction Circ Water Pump
Thanks