Goulds ST51 /ST71 submersible Effluent Pumps are designed for basement draining, water transfer, dewatering and effluent transfer applications. These heavy duty, portable and compact pumps can handle up to 1/2″ spherical solids.
The ST51/ST71 series are made of rugged, corrosion resistant cat iron, with a thermoplastic impeller and cover. Each of these Gould Effluent Pumps features upper sleeve and lower heavy duty ball bearings. The mechanical seals are carbon/ceramic/BUNA with stainless steel metal parts and fasteners for added protection. The pumps can withstand up to 104° F and can operate continuously when completely submerged.
You can view the performance ratings below to help you make your pump selection:
The motor is permanently lubricated and includes Class B insulation, as well as a built-in thermal overload protection with an automatic reset. Included is a high strength carbon steel shaft. The power cord is a quick disconnect type, heavy duty 16/3 SJTW with 115 volt grounding and vertical switch.
GOULDS ST31 SERIES SUMP-EFFLUENT PUMPS |
Model Comparison Chart
Model |
Discharge |
HP |
Voltage |
Phase |
GPM |
Max. Head |
Float |
Cord |
ST51AV |
1-1/2″ NPT |
1/2 |
115 |
1 |
61 |
29′ |
Built-In Vertical |
10′ |
ST51P1 |
1-1/2″ NPT |
1/2 |
115 |
1 |
61 |
29′ |
Piggyback Wide Angle |
10′ |
ST51P1F |
1-1/2″ NPT |
1/2 |
115 |
1 |
61 |
29′ |
Piggyback Wide Angle |
20′ |
ST51PV |
1-1/2″ NPT |
1/2 |
115 |
1 |
61 |
29′ |
Piggyback Vertical |
10′ |
ST71AV |
1-1/2″ NPT |
3/4 |
115 |
1 |
70 |
37′ |
Built-In Vertical |
10′ |
ST71P1 |
1-1/2″ NPT |
3/4 |
115 |
1 |
70 |
37′ |
Piggyback Wide Angle |
10′ |
ST71P1F |
1-1/2″ NPT |
3/4 |
115 |
1 |
70 |
37′ |
Piggyback Wide Angle |
20′ |
ST71PV |
1-1/2″ NPT |
3/4 |
115 |
1 |
70 |
37′ |
Piggyback Vertical |
10′ |
Pump Products application engineers are standing by to help you find the right pump, as well as to provide price quotes, stocking availability and shipping information. Call our toll free number 1-800-429-0800 to speak to an expert today.