6" 50 Hz Stainless Steel Submersible Pumps

4SK3 Series Stainless Steel Submersible Pumps (50 Hz)

The 2SK to 9SK series of fully submersible pumps feature critical components made from AISI304 stainless steel, chosen for its corrosion resistance and durability. These parts, including the impeller, diffuser, pump electrical outlet, and suction assistance, are crafted using advanced molding and punching techniques. The pump’s rubber bearing is composed of a wear-resistant, low-friction material. The coupling between the motor and the pump adheres to NEMA standards for reliability and compatibility. Our impellers and diffusers are engineered and produced with three key objectives: maximizing efficiency, ensuring structural integrity, and promoting longevity. This design philosophy results in pumps that perform optimally while withstanding challenging operating conditions over extended periods.


  • Constructed entirely of SS304 stainless steel, ensuring corrosion resistance, environmental friendliness, and maintaining water purity without risk of contamination.
  • Includes a check valve to prevent backflow when the pump is inactive. Optional drain holes can be added to the valve seat for gradual pipeline drainage, preventing freezing in cold weather.
  • Stainless steel impellers offer superior wear resistance and longevity compared to plastic or brass alternatives, resulting in high efficiency, improved reliability, and extended operational life.
  • Equipped with a stainless steel sand screen to block sand and large particles from entering the pump body.


  • Fully SS304 stainless steel construction ensures corrosion resistance and environmental friendliness, preserving water quality without risk of contamination.
  • Integrated check valve prevents backflow when the pump is inactive. Custom drain holes can be added to the valve seat for controlled water evacuation, protecting pipelines from winter freezing.
  • Stainless steel impellers significantly outperform plastic or brass alternatives in wear resistance and longevity, enhancing the pump’s efficiency, stability, and operational lifespan.
  • Built-in stainless steel filter screen blocks sand and large particles from entering the pump mechanism.