Goulds Part #7GBS0512J4, 1/2HP, 3 Phase, 9 Stage, GB Series, Stainless Steel, Centrifugal Booster Pump with ODP Enclosure

0.5 HP, 3-phase, ODP

SKU: 7GBS0512J4 Category: Tags: ,



  • Multi-stage Design: Provides steady, quiet, vibration free, operation.
  • Optional Stainless Steel Construction: Standard cast iron for general service or stainless for filtration applications.
  • O-ring Casing Seal: Reliable high pressure sealing with easy disassembly for maintenance or repair.
  • Impellers and Diffusers: Glass filled engineered composite material with floating impeller design. High resistance to corrosion and abrasion.
  • Bowls: 300 stainless steel rabbit lock for positive alignment with no gasket required.
  • Variable Capacity: Centrifugal pump design permits selection of flow within a range for each size.
  • Mechanical Seal: A variety of face materials and elastomers to match application needs.
  • Motors: Close coupled NEMA 56J motors in open drip proof or totally enclosed design. Single phase and three phase available. Ball bearings carry all radial and axial thrust loads. Designed for continuous operation.


Brand Goulds
Mfg. Number 7GBS0512J4
Series GB
Product Type High pressure booster pump
Application General commercial/Filtration
Horsepower 1/2 HP
Voltage 230/460 volts
Phase 3
Stages 9
Speed 3500 RPM
Frequency 60 Hz
Design High Pressure/Multi-stage
Best Efficiency Flow 7 GPM
Suction Connection 1″ NPT
Discharge Connection 1″ NPT
Rotation Clockwise when viewed from motor end
Impeller Material Glass filled engineered composite material
Discharge Head Material Stainless steel
Suction Housing Material Stainless steel
Shaft Seal Carbon, Sil-Carbide, Viton, 316SS
Frame 56J
Enclosure ODP
Max. Suction Pressure 75 PSI
Max. Temperature 160°F

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Additional information

Weight 44 lbs