Zoeller Two Stage Centrifugal Pumps Buyers Guide & Review
Zoeller’s 306-309 Series of two stage, end-suction, centrifugal pumps are ideal for booster service, water circulation, cooling systems, laundry equipment, and liquid transfers. The single phase, continuous duty, capacitor start, double ball bearing motor comes in 3/4, 1, 1-1/2, or 2 horsepower versions. The series features a multi-stage design for high head, cast iron casing, 1-1/2” suction, and 1-1/4” discharge. Pumps are capable of reaching heads ranging from 113 to 154 ft. TDH and capacities from 40 to 55 GPM depending on the chosen model.
Features
- 56 frame, NEMA J, capacitor start, double ball bearing motor for continuous operation
- Rugged cast iron pump casing
- Multi-stage for high head
- Normal wearing parts are easily removed for service and replacement without disturbing the suction or discharge piping
- Applications include booster service, water circulation, cooling systems, laundry equipment, and liquid transfers
- Do not exceed the maximum case pressure and maximum liquid temperature rating of the pump
- Suction and Discharge Tappings 1-1/2” x 1-1/4”
| ZOELLER TWO STAGE CENTRIFUGAL PUMPS |

Model Comparison Chart
| Model |
Discharge (NPT) |
HP |
Voltage |
Phase |
GPM |
Max. Head |
| NE306 |
1-1/4" |
3/4 |
115/230 |
1 |
41 |
113' |
| NE307 |
1-1/4" |
1 |
115/230 |
1 |
45 |
138' |
| NE308 |
1-1/4" |
1-1/2 |
115/230 |
1 |
54 |
140' |
| NE309 |
1-1/4" |
2 |
115/230 |
1 |
55 |
155' |





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