Premium Coupling

Premium connection is a higher class connection type for used to connect casing or tubing pipelines.

Advantages

1. High seal performance

2. High strength

3. Long durability

Dimensions and tolerances.

For Group 1, 2 and 3, Unless specified in the purchase agreement, coupling dimensions and tolerances shall be complied to API 5CT table C.32 to C.35 or tables E.32 to E.35.

For Group 4: Not only internal machining could be done to Coupling, external machining also could be done to. Except API couplings and threads shall comply to C.32 and C.33, or E.32 and E.33, in case other connections couplings or threads (Premium connection), couplings sizes shall be specified in the agreement.