Pressure Testing The Pipeline Section - Mankenberg UV 3.0 ATEX Originalbetriebsanleitung

Original operating manual
Back pressure regulators UV 3.0 ATEX
» If available, connect control and/or leakage line.
If the leakage line is not connected, the medium will be leaking in the event of damage.
The non-fitted leakage line connection must not be closed under any circumstances. This may
result in improper control behavior of the valve.
note
Keep the leakage line connection free from external influences such as water, dirt or insects.

7 Pressure testing the pipeline section

The fitting has already been pressure-tested by the manufacturer. The following points should be observed
when conducting a pressure test on a pipeline section with a pressure-regulating valve installed:
» Pressure-reducing valve: the test pressure must not exceed 1.5 times the max. adjustable outlet pressure,
e.g. a setting range of 4 to 8 bar gives a max. permitted test pressure of 8 bar x 1.5 = 12 bar.
» The test pressure on the inlet pressure side is determined by the pressure marked on the body, in
addition, the permitted reducing rate has to be observed (see order confirmation).
» Backpressure regulator: the test pressure must not exceed 1.5 times the max. adjustable inlet pressure,
e.g. a setting range of 4 to 8 bar gives a max. permitted test pressure of 8 bar x 1.5 = 12 bar.
» Vacuum control valve: the test pressure must not exceed 1.5 times the max. adjustable pressure. The
information described above should be observed according to whether a pressure-reducing or
backpressure regulator forms the basis for the vacuum control valve.
» Differential pressure control valve: the test pressure must not exceed 1.5 times the max. adjustable
pressure. The information described above should be observed according to whether a pressure-reducing
or backpressure regulator forms the basis for the differential pressure control valve.
» Flow control valve: the test pressure must not exceed 1.5 times the max. adjustable pressure. The
information described above should be observed according to whether a pressure-reducing or
backpressure regulator forms the basis for the flow control valve.
» Under no circumstances may the test pressure exceed 1.5 times the value indicated on the body
with "PN" or "Class".
If the pipe section is flushed and/or dried after assembly or pressure testing, it isnecessary to
make sure that the fitting has not been damaged by corrosion or excessively high temperature.
note
If any leakage occurs on the fitting, section Troubleshooting help [} 17] should be observed.
UV 3.0 ATEX-4.X.222 Issue 18.07.2022
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