Xylem NPOPTM NPO Product Training Manual - Manual (Page 19)

PAGE 19
Commercial Water
Goulds Water Technology
Cutaway view of double drum CBW
PARTS WASHERS
Another market which could use the benefits of both stainless steel and open impellers is parts washing. These
systems are used in manufacturing companies to remove chips, dust, oils and other residue from finished parts.
Machined parts are good examples of components which are usually washed after manufacture.
Typically, these systems use various chemical detergents and solvents under pressure to clean the part. The deter-
gent is then strained to remove chips and residue, then returned to the pump for recycling. Depending on how
good the straining process is, the pump may still see some fairly large particles. An open impeller design allows
any residual material to pass and avoids potential damage to the pump.
Although the durability of stainless steel is an advantage in the detergent environment of a parts washer, the stan-
dard pump is typically cast iron due to traditional stainless costs. The NPO in stainless steel increases pump life,
matches the materials commonly used for the rest of the unit and eliminates the chance of rust contaminants in the
system.
DISHWASHER MARKET