Vetter Pipe and Test Sealing Bags - Manual (Page 29)

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7.2 Vetter Egg Profile Testing and
Bypass bags 1 & 1.5 bar
Description
Vetter egg profile bags and bypass bags 1 and 1.5 bar can be used
for blocking and bypassing when carrying out repair and main-
tenance work, e.g. leak testing, channel inspection, maintenance
and repair as well as cleaning work.
9 Please observe the permitted maximum counter-pressure of
5 m water column, resp. 0.5 bar, when using the egg profile
sealing bag.
Vetter egg profile bags can be folded in the deflated condition so
that they are able to be inserted through a standard shaft opening
of 600 mm. Egg profile bags and bypass bags 1 and 1.5 bar can
be supplied with one or two ducts for the water test and the com-
pressed air test.
Adapters and accessories for water testing and compressed air tes-
ting can also be supplied (refer to the catalogue).
9 The egg profile sealing bag and bypass bag EDK 35/52.5
–50/75, 1.5 bar, can be used for a number of profile sizes. Egg
profile sealing bags 1 bar are each used for the specified size.
9 Connect the 1.5 bar inflation hose (plug-in nipple/coupling) or
the 1 bar inflation hose (claw coupling) to the 1.5 bar (plug-in
coupling) or the 1 bar (claw coupling) connection coupling of
the egg profile test bag and the connection nipple/coupling
of the 1.5 bar or 1 bar controller.
9 Insert the whole length of the test bag into the pipeline and
secure it with a suitable device against catapulting outwards,
e.g. with a structure support.
9 Inflation of the test bag is then made according to the descrip-
tion given in chapter 4.
Egg profile base bag 1bar
Egg profile bag 1.5 bar