Artificial Lift - Downhole safety valve (DHSV) This component is intended as a last-resort method of protecting the surface from the uncontrolled release of hydrocarbons. It is a cylindrical valve with either
Quam valves | GAH-SSV Series is a Full bore through conduit Slab Gate valve complete with Rising Stem Hydraulic Actuator
What is a subsurface safety valve? | Instrumentation and Control Engineering