B-Series Safety Valve Landing Nipples
Hydraulic safety valve landing nipples
Contain pressure as part of a standard or heavyweight tubing string.
Slickline-retrievable subsurface safety valves
The WRDP-1 is operated by a rod-piston, premium sealing system. The primary flapper mechanism also has full metal-to-metal sealing and a secondary soft seat.
Some models of this valve are designed to be spring-spacer adjustable (SSA). SSA valves permit closing pressures to be varied during valve assembly by substituting spacers of different lengths instead of changing the power spring.