Vetter Pipe and Test Sealing Bags - Manual (Page 12)

Vetter Pipe and Test Sealing Bags
Page 12/33
4.4 Emptying the pipeline
9 It is to be ensured that nobody remains in the shaft or pipe
before emptying the pipeline.
9 Empty the secured sealing bag via the controller so the dam-
med liquid is able to slowly flow pass the sealing bag and sup-
port structure.
9 The support structure or the securing device must only be re-
moved when the pipeline is completely empty.
9 Check the applied bag and its accessories for completeness,
perfect condition and function.
4.5 Water test and compressed air test
9 The data specified in EN 1610 (leak testing) is to be observed
concerning open channels.
9 Using suitable measures, the pipe and test sealing bags are to
be secured against catapulting outwards and slipping.
9 Select the suitable pipe and test sealing bags depending on
the pipe diameter.
9 Filling the pipeline as well as ventilation and measurement of
the test pressure are carried out via the test sealing bag.
9 Blocking is made with the pipe sealing bag
4.6 Water pressure test (open channel)
9 Insert the pipe sealing bag and test sealing bag, including
assembled ventilation swimmer hose, Storz couplings and
blocking valve, into the pipeline, construct the support and
inflate to the permitted operating pressure with the controller
and the inflation hose.
9 Mount the inflation hose on the blocking valve for water fil-
ling and connect the test and measurement hose to the se-
cond Storz connection and position it vertically upwards out
of the shaft.
9 Attach the marking for the required height of the water co-
lumn.
9 Filling the pipeline takes place outside the shaft.
9 The test specifications valid at the time of testing are to be
observed (e.g. EN 1610).
9 The pipe and test sealing bags are emptied via their inflation
devices after completion of the water pressure test and com-
plete pressure relief of the pipeline and are then removed out
of the pipeline.
9 This also applies to the support structure.
9 Check the applied bags and their accessories for complete-
ness, perfect condition and function.