Vetter Pipe and Test Sealing Bags - Manual (Page 13)

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4.7 Compressed air test
The support structure of a pipeline under pressure must never be
removed. Pipe sealing bags and test sealing bags could suddenly
catapult outwards. During a pressure test nobody is permitted to
remain in the shafts or on and in the pipelines under pressure.
9 Insert pipe sealing bag and test sealing bag, including moun-
ted compressed air adapter, into the pipeline and inflate to
the permitted operating pressure with the controller and the
inflation hose.
9 Connect the inflation and safety hose (0.3 bar) (filling the
pipeline to the permitted test pressure) and the measurement
hose (0.3 bar) or, as an example, the measurement hose of the
Vetter manual pressure measurement gauge, to the test adap-
ter of the test sealing bag.
9 The filling of the pipeline to be tested with the pre-specified
permitted test pressure is made outside of the shaft.
9 The testing time is dependent on the pre-specified test me-
thod.
9 The applied pipe and test sealing bag can be deflated via their
inflation fittings and taken out of the pipeline after completi-
on of the pressure test and after complete pressure relief of
the pipeline.
9 Check the applied bags and their accessories after use for
completeness, perfect condition and function.