• Abrasion-resistant construction. The front wear plate, combined with the floating impellers, ensures optimum resistance to abrasion.
  • The upper and lower supports are made of precision cast stainless steel, ensuring resistance to corrosion, durability, and a sturdy coupling to the motor.
  • Stainless steel oversized well pump shaft guarantees an effective impeller drive.
  • A stainless steel non-return valve is fitted in the discharge to prevent any backflow of water and alleviate any water hammer to the pump, thus safeguarding impellers and diffusers.
  • These stainless steel well pumps can be coupled to either the 4 Inch Oil Filled or 4 Inch Water Filled motors.
  • Units have left-hand threads and are field serviceable with common tools and readily available repair parts.
  • Face clearance, floating impeller stack has proven itself as a superior sand-handling, durable pump design.
  • Impellers, diffusers, and bearing spiders are constructed of glass-reinforced thermoplastic. They are corrosion-resistant and non-toxic.
  • We offer a wide range of pumps with ratings from 0.5, 10HP to 20 HP, designed for residential, agricultural, and industrial applications

  • The proprietary, engineered polymer bearing material is strong and resistant to abrasion and wear. The enclosed intermediate and upper bearing is mounted in a durable glass-reinforced thermoplastic bearing spider for excellent abrasion resistance.
  • Easy access to motor mounting nuts using a standard open-end wrench.
  • Stainless steel well pump casing is strong and corrosion-resistant.

4 Inch Thermoplastic Submersible Well Pumps – 5 HP, 10 HP & 15 HP

Northam INC. proudly offers high-performance 4 inch submersible pumps designed to meet the rigorous demands of agricultural, industrial, and commercial water systems across the USA. These 4 inch submersible well pumps feature durable thermoplastic pumps construction with corrosion-resistant materials and stainless steel end bells for long-lasting performance in deep well installations. Whether you need a 5 HP submersible pump for residential or local water supply or a powerful 10 HP submersible pump for more demanding applications, Northam INC. provides a reliable solution with superior efficiency and strength.

Engineered to perform in high-pressure environments, the 15 HP submersible pump offers an impressive maximum head of up to 1300 feet. These 4 inch well pumps are ideal for groundwater extraction, chemical processing, and general industrial use. Designed for longevity and efficiency, every 4 inch submersible well pump is built with advanced materials to ensure resistance against corrosion, abrasion, and harsh environmental conditions. Trust Northam INC. for your next 4″ submersible pump solution, precision-built for the most demanding applications in the USA.

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