Vetter Pipe sealing bags and bypass bags FS - Manual (Page 8)

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Pipe Sealing- and Bypass Bags
Air supply hose, 10 m, with and without blocking valve
The air supply hoses, with and without blocking valve, can be
used as an extension between the air source and the controller.
3.3 Operation with a foot pump having a
safety valve
Foot pump 1.5 bar with safety valve
Foot operated air pump, 1.5 bar with safety valve and 2 m con-
nection hose for inflation of sealing bags in connection with an
inflation hose.
4. Operation of Pipe Sealing- & Bypass Bags
In this chapter you will find out how the Vetter pipe sealing- and
bypass bags are applied.
When using the pipe sealing- and bypass bags,
observe the safety instructions given in
chapter 2 as well as the pertinent regu-
lations for work protection and safety
protection, accident prevention regu-
lations (e. g. the safety regulations of
the technical authorities) and the
generally recognized laws of technology.
4.1 Preparations for operation
9 Ensure that only authorized staff are in the working area and
danger area.
9 Select a suitable pipe and/or bypass bag which corresponds
to the requirements.
9 Check the bag and the accessories to be used for comple-
teness and damage.
9 Damaged bags and damaged accessory parts must not be
used!
9 The bag diameter must be smaller than the inside diameter of
the pipeline.
9 Inflation hose and controller must already be connected to
the sealing bag.
9 Mark the working area.
9 Position the bag (full length) into the pipe.
9 The sealing bag in the pipe is to be supported.
9 Draw the sealing bag to the support structure and inflate so
that it can still be moved in the pipeline.
Blocking valve