Sentry’s BO-2 adapter is another example of a suspension adapter. It is designed with an internal ACME thread that allows for the Sentry BO-2 coupling to be threaded in the bottom of the adapter and sealed with an internal O-ring. These adapters also employ the TC-1W wrap-around pack-off. They are employed when an operator wants to reciprocate tubing as part of the completion process.
Is utilized for medium to high shut pressure applications
Is designed with an internal O-ring seal
Is supplied with test ports for testing
They do not allow for multiple tubing string completions