ROHRANBOHRARMATUR

摘要

A housing has a drilling connection (3) for drilling through the pipe wall and placed at an angle to the pipe's axis. A branch connection(8) is at an angle to the drilling connection which contains a rotarily operated piercing bush (9). The bush and connection have matching threads (18, 20) and have between them at least one sealant (23) which is spaced radially inwardly and or axially from the matching threads.