Barnes SU Series Sump Pumps Buyers Guide & Review
The Barnes SU series of sump pumps is designed with a magnetic float switch that is housed in a shroud to guard against obstruction and wedging. The magnets activate a switch as the float rises and falls. The SU series also comes with a built-in strainer that prevents large solids from clogging the impeller.
Features
- Vertical float integral to pump
- High strength, rare earth magnets provide outstanding activation capability with a totally sealed switch
- Permanent Split Capacitor motor draws less amps
- Oil lubricated bearings provide quieter running and longer life
- Cast iron motor housing provides excellent motor heat dissipation
- Top-suction impeller eliminates air lock issues
- Buna-N O-rings
- 3/16" maximum solids
- 14" minimum sump diameter
- Single mechanical seal, Type 11A
Applications
| BARNES SU SERIES SUMP PUMPS |

Barnes SU Series Sump Pumps
Model Comparison Chart
| Model |
Discharge (NPT Vertical) |
HP |
Voltage |
Phase |
GPM |
Max. Head |
| SU25 |
1-1/2" |
1/4 |
120 |
1 |
35 |
17' |
| SU33 |
1-1/2" |
1/3 |
120 |
1 |
42 |
20' |





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