Goulds ST51P1, Submersible Sump/Effluent Pump, 1/2 HP, 115 Volts, 1 Phase, 1-1/2" NPT Discharge, 61 GPM Maximum, 29 ft Maximum Head, Automatic, W/ Piggyback Wide Angle Float Switch, 10 ft Cord
FEATURES
Goulds ST51 Sump/Effluent Pump
Heavy duty, portable and compact sump pump capable of handling 1/2" maximum sphere.
Features
- Corrosion resistant construction
- Cast iron body
- Thermoplastic impeller and cover
- Upper sleeve and lower heavy duty ball bearing construction
- Motor is permanently lubricated for extended service life
- Powered for continuous operation
- All ratings are within the working limits of the motor
- Power cord, 10 ft standard length, heavy duty 16/3 SJTW with 115 volt grounding plug and vertical switch
- Mechanical seal is carbon, ceramic, BUNA and stainless steel. Stainless steel fasteners
- Discharge: 1-1/2" NPT
- Temperature: 104ºF (40ºC) maximum, continuous when fully submerged
Applications
Specially designed for the following uses:
- Basement draining
- Dewatering
- Water transfer
- Effluent transfer
Brand | Goulds |
Mfg. Number | ST51P1 |
Model Number | ST51 |
Product Type | Sump / effluent pump |
Application | Basement draining / dewatering |
Operation | Automatic |
Phase | 1 |
Horsepower | 1/2 HP |
Speed | 3450 rpm |
Voltage | 115 Volts |
Frequency | 60 Hz |
Discharge Connection | 1-1/2" NPT |
Float Switch Style | Piggy-back wide angle |
Impeller Material | Thermoplastic |
Maximum Capacity | 61 gpm |
Maximum Solids Size | 0.5" |
Maximum Head | 29 ft |
Flow at 10 ft | 60 gpm |
Flow at 25 ft | 16 gpm |
Flow at 15 ft | 47 gpm |
Flow at 20 ft | 33 gpm |
Minimum Basin Diameter | 18" |
Pump Casing | Cast iron |
Motor Design | Permanent split capacitor |
Motor Insulation | Class B |
Cord Length | 10 ft |
Shaft Material | Carbon steel |
Current Draw | 7.5 Amps |
Thermal Protection | Yes |
Goulds ST51 /ST71 submersible sump-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 pumps are made of rugged, corrosion resistant cat iron, with a thermoplastic impeller and cover. Each pump 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' |
PERFORMANCE CURVE |
PARTS BREAKDOWN |
TYPICAL INSTALLATIONS |
DIMENSIONS |
BROCHURE |
Goulds ST51/ST71 Sump-Effluent Pump Brochure |
INSTRUCTIONS |
Goulds ST51/ST71 Sump-Effluent Pump Instructions |
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*Note: Picture is illustrative and may not reflect the actual product.*