... 10bar. 4.Cast iron or Stain Brief Introduction:QDLF serial light-duty stainless steel vertical multi-stage centrifugal pumps are non-priming ... process of pressing and welding.4. Compact structure, small size, light in weight, low noise, remarkable energy saving, easy for ... water, softened water, pure water, clean oil and other light chemical medium.3. Slight corrosive medium.Motor:Full-enclosed and ...