Underflow Manifold : An arrangement by which the underflow from one or more hydrocyclones or from one or more underflow headers can be diverted. (Bul 13C)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}