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

SKU #: ST51P1
Brand: Goulds
In Stock! (Ships Today !) This item is In Stock at our warehouse distribution center. Stock orders placed Monday through Friday by 1:00 pm EST. will be shipped the same day. Orders placed Friday after 1:00 pm through Sunday will be shipped on Monday.
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 LIST PRICE 446.60
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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
BrandGoulds
Mfg. NumberST51P1
Model NumberST51
Product TypeSump / effluent pump
ApplicationBasement draining / dewatering
OperationAutomatic
Phase1
Horsepower1/2 HP
Speed3450 rpm
Voltage115 Volts
Frequency60 Hz
Discharge Connection1-1/2" NPT
Float Switch StylePiggy-back wide angle
Impeller MaterialThermoplastic
Maximum Capacity61 gpm
Maximum Solids Size0.5"
Maximum Head29 ft
Flow at 10 ft60 gpm
Flow at 25 ft16 gpm
Flow at 15 ft47 gpm
Flow at 20 ft33 gpm
Minimum Basin Diameter18"
Pump CasingCast iron
Motor DesignPermanent split capacitor
Motor InsulationClass B
Cord Length10 ft
Shaft MaterialCarbon steel
Current Draw7.5 Amps
Thermal ProtectionYes


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.*