From standard onshore single well profiles to comprehensive offshore multi-well profiles, TVC will support your wellhead system component requirements to comply with API-6A and end-user specifications.

API-6A Wellhead Equipment 

API 6A Wellhead Equipment

TVC Casing Hangers/Secondary Seals

API-6A Wellhead Equipment  TVC Casing Hangers



API-6A Wellhead Equipment  TVC Secondary Seals


Secondary Seal

TVC’s C-22 automatic casing hangers (wrap around) incorporate a lower packoff, slip bowl, and slips. The lower packoff is energized by the weight of the casing, which provides a positive annular seal.


• Heavy duty latch and hinge

• Latch cap screw prevents accidental opening of  hanger

• Minimum number of parts

• Packoff is automatically energized with casing  weight

Available in standard API casing sizes.

Secondary Seals

TVC’s PE secondary seal is inserted in the bottom preparation 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.

TVC’s HPE secondary seal is designed for high­pressure applications. The bottom compression plate is threaded and is inserted in the bottom preparation of casing spools or tubing spools with threaded preparations.

Available in standard API casing sizes.


API-6A Wellhead Equipment  Casing Hangers Secondary Seals Specifications