... BK series stainless steel centrifugal pumps with semi-open impeller, max. solid 19mm, produced by advanced stamping and welding technology, ... impeller and shaft are made of SUS304 or SUS316, with features of exchangeable components, stable quality, small size, light ... lines and transporting media containing impurities.Motor: 2-pole induction motor, aluminum alloy motor case, single phase with thermal ...