A valve that employs a sliding gate to open or close the flow passage. NOTE: The valve may or may not be full opening.
Source: API STD 53, Blowout Prevention Equipment Systems for Drilling Wells, Upstream Segment, Fourth Edition, November 2012. Global Standards
A valve that employs a sliding gate to open or close the flow passage.
Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards
Valve assembly with a gate operating within the body, 90° to the conduit, to effect a closure.
Source: API SPEC 6A, Specification for Wellhead and Christmas Tree Equipment, Twentieth Edition, October 2010 (Addendum November 2012). Global Standards
Valve that closes by lowering a flat plate or gate to block the flow through the valve.
Source: IADC UBO / MPD Glossary, December 2011. Global Standard