Goulds ST51/ST71 Series Sump-Effluent Pumps Buyers Guide & Review

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

goulds st51-st71 series sump effluent pump

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

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.