Ron Crouch is product management director for Blackmer, a global provider of positive displacement, regenerative turbine and centrifugal pumps, and reciprocating compressor technologies for the transfer of liquids and gases. He can be reached at 616-475-9352 or Blackmer is a product brand of PSG, a Dover company, Oakbrook Terrace, Illinois. For more information on Blackmer or PSG, visit or