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6 Using the product
6.2.4.
Gas pipe (TRGI 2008)
WARNING
Risk of explosion due to hazardous gas/air mixtures
> Do not feed air into pipes carrying gas.
> Observe the information for the instrument if there is a risk that
air is being routed into pipes carrying gas.
CAUTION
Avoid damage to the instrument due to high pressure!
> The test pressure of 1.2 bar must not be exceeded.
There are 5 different test types to choose from:
Test type
Pretest
Main test
Leakage test
40
Explanation
The pretest (using air) is used for the load
test (stability test) of newly laid gas pipes.
The test is performed on the pipe without
gas meter and fittings.
The main test (using air or inert gas, e. g.
CO
or N
) is used for the tightness test
2
2
(acceptance test) on newly laid or
renovated pipes. The test is performed at
the pipe, including the fittings, without gas
installations and corresponding control
and safety equipment.
This measurement is carried out to test
the serviceability of an existing gas pipe
system and is used to check the actual
condition of the pipes. The pipe system
may be in operation or disused. After
handover of a gas system, the operator is
responsible for proper operation, which is
why it is recommended that the
serviceability test is carried out every 12
years.
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