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

TVC Casing Hangers/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.