• Pompco ST Series Stainless Steel Submersible Well Pump 1/2 HP - ST5-50-233 - 531-0087

    - 5 GPM - 230 Volt - 3 wire - With Ext. Check Valve

    Product ID • POMP53100870

  • $529.75
  • Quantity:
  • Free Ground Shipping


The ST Pompco 4 inch submersible was designed with such precision that it has given an all new meaning to quality and reliability. This model will perform efficiently even under the hardest conditions such as abrasive water.

The Bracket, discharge head, external check valve, shaft, discs and pump housing are all made of stainless steel for long lasting performance.

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Technical Specs

Pompco Well Pump ST Features

  • Check valve - External check valve made of stainless steel
  • Discharge Head & Motor bracket - Made of (304) stainless steel
  • Shaft - Hexagonal shaft made of (303) stainless steel for corrosion and wear resistance
  • Couplings - Made of stainless steel and fit perfectly to any 4 inch standard motor which allows maximum efficiency
  • Diffuser - Injection molded in Noryi
  • Washer - Made of stainless steel, they prevent wearing of the impellers and diffusers
  • Impeller - Injection molded in Polycarbonate
  • Disc - Made of stainless steel
  • All parts (diffuser, impeller and disc) are designed to resist wearing in abrasive water
  • Top bearing - Injection molded in Polypropylene plus fibers, with a rubber centre for an even more precise alignment of the shaft. The rubber center considerably reduces wearing of the shaft caused by sand.
  • Screen - Made of stainless steel, it prevents the impellers from large debris obstructions
  • Cable guard - Made of stainless steel, corrosion resistant, protects motor lead
  • Housing - Made of (T-304) stainless steel, it is threaded for easy maintenance
  • Fasteners - All stainless steel fasteners

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