High Pump Bearing Temperature
High Pump Bearing Temperature
(OP)
Greetings everyone,
I have an overhung pump driven by motor(45kw).
This pump is new installation in our plant.
During the 4 hours mechanical run test ( first run ) by water at ambient temperature. The DE ( outboard) bearing recorded temperature between 76 to 79 C and NDE bearing recorded 71 C (after completing the 4 hours test). All vibration readings with the acceptable limits.
The bearing house is equipped by cooling water supply and during the test this CWS was lined up.
As per the vendor manual highest temperature is 82C, please find the following quote:
“(Based on the specified operation condition and ambient temperature 43C for ring oiler, oil sump temperature below 82 is expected.
The question?
Is this temperature consider high and not accepted especially it is very close to the maximum value recommended by vendor. Also, I wonder how the bearing temperature will be after the plant start up, because the original pumped liquid is water with normal temperature at 195 C.
Your valuable technical feedback is highly appreciated.
I have an overhung pump driven by motor(45kw).
This pump is new installation in our plant.
During the 4 hours mechanical run test ( first run ) by water at ambient temperature. The DE ( outboard) bearing recorded temperature between 76 to 79 C and NDE bearing recorded 71 C (after completing the 4 hours test). All vibration readings with the acceptable limits.
The bearing house is equipped by cooling water supply and during the test this CWS was lined up.
As per the vendor manual highest temperature is 82C, please find the following quote:
“(Based on the specified operation condition and ambient temperature 43C for ring oiler, oil sump temperature below 82 is expected.
The question?
Is this temperature consider high and not accepted especially it is very close to the maximum value recommended by vendor. Also, I wonder how the bearing temperature will be after the plant start up, because the original pumped liquid is water with normal temperature at 195 C.
Your valuable technical feedback is highly appreciated.
Talk To Other Members
RE: High Pump Bearing Temperature
If you are at a low flow move as close to your duty point as possible and see if your temperatures now become normal.
RE: High Pump Bearing Temperature