Valve, Gate 2 : A valve designed to function in either a full open or full close position in which the closure member (gate) is moved in a direction perpendicular to the flow direction (Spec 14D)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}