I'm trying to bring performance back to original specifcation. I checked power draw on all (4) CWP pumps today. We have two (underfiled at 463amps) and two non underfiled (one drawing 440amps, and one drawing 400amps). I am hoping the performance for this pump (underfile removed) is somewhere in...
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...
Pete,
I have no way of measuring the winding temps, but last year in the summer with a smaller impeller in the pump (112hp vs. 150hp now) the motor casing temp was about 140 max. I expect 20F rise with the larger hp draw.
What does the max. temp rise of 90C mean, when ambient is 40C? Is that...
All,
At work we are using an old GE drip proof motor 405TS (no fan)on a pump (circa 1969). It used to be a 125hp with a 1.15 SF. It is now 150hp with a 1.0 SF. It has greased sleeve bearings. The pump draws 145 to 150hp. The temp at the end bells is 140 to 160F on the surface. Is this too hot...
