The INTRO/BAG™ system mod. IB/3 allows an easy insertion of the gas bags through guide tubes and offers
significant advantages:
No gas leak.
Introduction and removal of the bag without rubbing the edges of the
drilled bore. This problem arises in particular in steel pipes.
The outer surface of the gas bags always run on smooth side walls which cannot cause any tearing.
Possibility of introducing a ball from one side and the other from the opposite side.
Possibility of using the central guide tube as a vent or for the so-called "hydraulic guard", i.e. the introduction of water between the two balloons to create a safe barrier with gas on steel pipes.
All the Ravetti INTRO/BAG™ tools are built in Ergal aluminium to ensure high strength and light weight.
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