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 safe, dependable service in pressure applications through 5000 psi.

Casing Size

Spool Nominal Bottom Prep.

7”

9”

10-3/4”

4-1/2”

5,000psi

5,000psi


5”

5,000psi

5,000psi

5-1/2”

5,000psi

5,000psi

6-5/8”


5,000psi

7”


5,000psi

7-5/8”


5,000psi

8-5/8”



5,000psi

9-5/8”



5,000psi


“P” secondary seal

Secondary Seal(图1)

Secondary Seal(图2)  








EBSReducer Bushing

Secondary Seal(图3)

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