Original operating manual
pilot-operated pressure regulators RP 824
DANGER
Danger due to use other than the intended use
Failure to observe this instruction may cause severe or fatal injury or damage to the
pipework.
A valve must not be operated if its permitted pressure and temperature range is inadequate
for the operating conditions—see the "Intended use" chapter and the markings on the valve.
For an application outside this range, consult the manufacturer.
» Newly installed tanks or pipeline sections must be thoroughly rinsed and cleaned before commissioning.
» The corrosion protection for the valve must be adapted to the local conditions.
» Before installing a pressure control valve, it is necessary to make sure that the pipeline section complies
with the recommended installation, as described in the relevant Mankenberg data sheet. In particular, a
safety valve and a suitable strainer should be installed upstream of the valve.
NOTICE
Note on installing the sense line
For pilot-operated pressure control valves, a sense line has to be laid between the pressure
control valve and the pipeline by the operator - this is described in the above-mentioned
recommended installation.
Please note:
» Only use sense lines made of metal, not of plastics
» Distance from the valve/sense line connection to the pipeline ≥ 10x pipeline diameter
» When the medium is steam, lay the sense line with the gradient falling towards the valve
» The sense line should match the connection on the valve.
» If necessary, install a throttle to avoid vibration.
The pressure control valve should first be adjusted to the operating conditions after installation in the pipe, i.e.
during initial start-up – see section
However, it is necessary to ensure before installation that there is sufficient space for the appropriate socket or
open-jawed spanner above/below the adjusting screw.
NOTICE
Horizontal installation position required
As a general rule, pressure control valves should be installed in horizontal lines so that the
pilot valve points upwards.
8.3 Installation steps
Valves should only be finally unpacked at the installation site and inspected for damage prior to assembly.
Damaged valves must not be installed.
It is necessary to ensure that the covers have been removed from all the connection branches before
installation.
RP 824-4.X.231 Issue 17.11.2023
Initial start-up
[Page 18].
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