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Goulds 1ST1G9A4, NPE Series, 2HP, 208-230/460V, Three Phase Centrifugal Pump with TEPE High Efficiency Motor

SKU: 1ST1G9A4 Category:



  • High Efficiency Impeller: Enclosed impeller with unique floating seal ring design maintains maximum efficiencies over the life of the pump without adjustment.
  • Mechanical Seal: Standard John Crane Type 21 with carbon versus silicon-carbide faces, Viton elastomers, and 316 stainless metal parts. Optional high temperature and chemical duty seals available.
  • Motors: NEMA standard open drip-proof, totally enclosed fan cooled or explosion proof enclosures. Rugged ball bearing design for continuous duty under all operating conditions.
  • Superior Materials of Construction: Complete AISI 316L stainless steel liquid handling components and mounting bracket for corrosion resistance, quality appearance, and improved strength and ductility.
  • Casing and Adapter Features: Stainless steel construction with NPT threaded, centerline connections, easily accessible vent, prime and drain connections with stainless steel plugs. Optional seal face vent/flush available.


Brand Goulds
Mfg. Number 1ST1G9A4
Series NPE Series
Model 1ST
Product Type Centrifugal pump
Application Water circulation/Booster service
Horsepower 2 HP
Voltage 208-230/460 volts
Phase 3
Frequency 50/60 Hz
Speed 3500 RPM
Design Close coupled/End suction
Discharge Connection 1″
Suction Connection 1-1/4″
Maximum Capacity 49 GPM
Maximum TDH 156 ft.
Pump Size 1 x 1-1/4
Impeller Diameter 6-1/8″
Impeller Material 316 Stainless steel
Pump Casing Material 316 Stainless steel
Motor Casing Material 316 Stainless steel
Motor Shaft Material 316 Stainless steel
Shaft Seal Carbon/Sil-Carbide/Viton/316 Stainless
Rotation Clockwise Rotation Viewed from Drive End
Enclosure TEFC
Overload Protection No, provided in starter unit
Max. Working Pressure 125 PSIG
Max. Temperature 212°F

For pump specifications and technical data, Goulds NPE series.

Additional information

Weight 44 lbs