Safety Valve

Definition(s)


Safety Valve

Spring-loaded pressure-relief valve actuated by the static pressure upstream of the valve and characterized by rapid opening or pop action.

  • NOTE: A safety valve is normally used with compressible fluids.

Source: API STD 521, Pressure-relieving and Depressuring Systems, Sixth Edition, January 2014. Global Standards

Safety Valve (stabbing valve)

A full opening valve available for quick installation in the pipe string to prevent flow.

Source: API RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). Global Standards

 

Safety Valve

“Safety valve” means a valve available for quick installation in the pipe string to prevent flow. [Mich. Admin. Code R 408 (2013)].

Source: Oil and Gas Drilling and Servicing Operations, Michigan Administrative Code R 408, February 8, 2013. Regulations