... Flow upto 42m3/h Head upto 25m BB series stainless steel centrifugal pumps with closed impeller, produced by advanced stamping and welding ... are made of SUS304 or SUS316, with features of exchangeable components, stable quality, small size, light weight, corrosion resisting, high efficiency, ... Temperature: up to +50°CMax. Working Pressure: 8 bar Stainless Steel Centrifugal Pumps with Close Impeller