Underflow 1 : (See General Term: Solids Discharge.) The discharge stream from centrifugal separators that contains a higher percentage of solids than does the feed. (Bul 13C)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}