Waukasha stainless steel circumpiston pump set. Model U15. Serial Number. 137037. Made from 316 stainless steel. The front cover also incorparates a jacket, the unit has mechanical seals and driven by a 1.1 kw 1400 rpm motor through a reduction gearbox giving a shaft speed of 750 rpm. The unit has 25 mm RJT ports fitted. Last used on food production. Mounted on a stainless steel base.