Patent ID: 7246634

Claim:
A fitting, comprising: a connecting piece for connection to a main pipe system, said main pipe system including a main pipe and/or a main pipe valve body positioned between sections of said main pipe, said connecting piece having a longitudinal axis; a fitting body disposed in said connecting piece, said fitting body being coaxially moveable along said longitudinal axis of said connecting piece; a drill disposed on said fitting body, said drill being adapted for spot-drilling said main pipe system; a branch connecting piece attached to said connecting piece, said branch connecting piece being adapted for connecting a branch pipe to said main pipe system; a closing device including an actuating element, said closing device disposed in said branch connecting piece so that actuation of said closing device is performed in said branch connecting piece by said fitting body and so that said closing device is at least one of actuatable and externally releasable by axial movement of said fitting body; and said closing device being a safety closing device which is automatically operative responsive to detecting a fluid pressure difference between an interior space of said connecting piece and an interior space of said branch connecting piece so that said closing device automatically closes said branch connecting piece to fluid flow therethrough upon detection of said pressure difference.