The TC-1W is a split, wraparound pack-off that allows tubing-string manipulation to displace fluid while maintaining complete control of annular pressure. Like all TC Series pack-offs, tubing string weight must be suspended from a tubing suspension adapter or coupling adapter. The TC-1W has a compression-type seal which is actuated by lockdown screws.
Considered a primary annulus seal
The compression seal is actuated utilizing lockdown screws
Lockdown screws also retain the pack-off in position
Seats in the TCM, TC and TC-60 tubing head bowl
Is used in conjunction with a tubing thread suspension adapter, BO-2 or BO-10 coupling type hanger