Used as a one way check valve when there is a desire to retain pressure from below the valve and still have the ability to pump, or inject down through the tool.
The BT Injection Valve consists for four components:
1. Packing Sub / Crossover2. Dart3. Cage4. Spring
Used in conjunction with any number (Baker or Otis) of lock mandrels, the BT Injection Valve may be landed in a variety of different profiles to provide well control while still leaving the ability to pump or inject from above.