NOISE IN THE PUMP N007
There are a number of things that can cause noise in a centrifugal pump:
- The product is cavitating in the pump. There are at least four types of cavitation:
- The pump is experiencing water hammer.
- A component is rubbing.
- The impeller is rubbing against the volute because of thermal expansion or improper adjustment.
- The sleeve is hitting an API (American Petroleum Institute) disaster bushing.
- The shaft is hitting a thermal bushing in the end of the stuffing box.
- The bearings are bad.
- The mechanical seal has come loose from the shaft.
- A foreign object has entered into the stuffing box.
- The seal faces are running dry. They will make a whistling noise.
- You have hit a critical speed.
- Coupling misalignment.
- The noise is coming from the motor or some near by equipment.
- Slip stick at the seal faces.