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