PE secondary seal : PE secondary seal is inserted in the bottom bowl of a casing spool or tubing spool and retained with a snap wire. The seal is energized when the spool is installed over the casing stub and the flange connection is made up. It is available in standard API casing sizes, as well as nonstandard casing sizes, and is built to provide sate, dependable service is pressure applications through 5000psi.

Casing Size is from 4-1/2 to 9-5/8.

P secondary seal

EBS Reducer Bushing

The EBS reducer bushing is a secondary seal that uses self-energized elastomer ring to seal the casing head spools and tubing spools, the bushing is rated up to 10000 psi.