Taco SKV SelfSensing

Taco® SKV
74 302-365, Effective: June 5, 2017
© 2017 Taco, Inc.
16 SKV PUMP PROBLEM ANALYSIS
16.0.1 No Discharge
1.Pump not primed.
2.Speed too low.
3.System head too high.
4.Suction lift higher than pump is designed.
5.Impeller completely clogged.
6.Incorrect direction of rotation.
7.Air leak in suction line.
16.0.2 Insufficient Discharge Flow
1.Air leak in suction line.
2.Speed too low.
3.System head higher than anticipated.
4.Insufficient NPSH. Suction lift too high. Check
gauges. Also check for clogged suction line or
screen.
5.Impeller partially plugged.
6.Mechanical defects.
a.Worn wear rings
b.Impeller damaged.
c. Incorrect direction of rotation.
16.0.3 Insufficient Discharge Pressure
1.Speed too low.
2.System head less than anticipated.
3.Air in system.
4.Mechanical defects.
a.Worn wear rings.
b.Impeller damaged.
c. Impeller diameter too small.
d.Incorrect direction of rotation.
16.0.4 Loss of Suction
1.Leak in suction line.
2.Suction lift too high.
3.Insufficient NPSH.
4.Air in system.
5.Casing gasket defective.
16.0.5 Excessive Power Consumption
1.Speed too high.
2.System head lower than rating.
3.Specific gravity of liquid too high.
4.Mechanical defects.
a.Shaft bent.
b.Rotating elements bind.
c. Worn wear ring.
16.0.6 Vibration
1.Air leak in suction line.
2.Air in system.
3.Impeller partially plugged.
4.Foundation not rigid.
5.Mechanical defects.
a.Damaged impeller.
b.Motor bearings worn.
c. Rotor out of balance.
d.Shaft bent.
16.0.7 Motor Runs Hot
1.Speed too high.
2.Specific gravity of liquid too high.
3.Mechanical defects.
a.Shaft bent.
b.Rotating elements bind.
c. Defective motor.
d.Voltage lower than rating.