Vetter 1 bar cone pipe stopper
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During a water pressure check, the pipeline to be checked must not be
directly connected to a pressurised line (e.g. hydrant).
Before and after each use, check that the cone pipe stopper and acces-
sories are in perfect working order. During the visual inspection, look out
for the following possible damage:
9
Separation
9
Cuts
9
Punctures
9
Effects of heat/acid
9
The nipples and couplings must be clean, undamaged and fully
functioning.
Outside pipelines, 1 bar cone pipe stoppers may only be filled to a max-
imum of 0.2 bar for the visual inspection.
All the control devices are fitted with a safety relief valve corresponding
to the maximum permissible operating pressure for the pipe stopper or
test pipe stopper. If the maximum operating pressure of 1 bar is exceed-
ed, the safety relief valve vents. The tolerance for opening and closing
the safety relief valves must not exceed ± 10%. The set pressure must
not be altered.
If the lead seal on the valve bonnet has been removed, safe functioning
is no longer guaranteed and the safety relief valve must be replaced. The
permissible inlet pressure to the control devices (labelled on the inlet
coupling) must not be exceeded.
Ejection of the cone pipe stopper
DANGER
!
Risk of death due to ejection of cone pipe stopper!
A cone pipe stopper that is ejected from the pipe can cause life-threat-
ening injuries.
– Keep away from the vicinity of the pipe’s opening.
– Wear safety gloves, safety shoes, face, head and ear protection and
protective clothing.
