Original operating manual
pilot-operated pressure regulators RP 824
1 Introduction
This manual is intended to assist users of a MANKENBERG pilot-controlled pressure-reducing or overflow valve
during installation, operation and maintenance. Read the manual thoroughly before installing or putting this
valve into service.
Failure to follow the following instructions – particularly the cautionary and warning
notes – may lead to hazards and may invalidate the manufacturer's warranty.
MENKENBERG is at your servíce for any assistance and queries. See section
caution
information [Page 19]
www.mankenberg.de.
Technische Informationen auch unter www.mankenberg.de
2 Intended use
A Mankenberg UV back pressure regulator is a device that is intended exclusively for automatically regulating
the inlet pressure of the medium (without any additional electrical/pneumatic energy) after it has been installed
in a pipeline system: The force of the inlet pressure acts on a control mechanism (diaphragm, piston or bellows)
and is in balance with the preload of a spring that has to be adjusted by the user to the required value within the
setting range of the valve.
A Mankenberg vacuum control valve VV is a modification of the pressure-reducing or back pressure regulator,
built to regulating pressures in the vacuum range. It only regulates the differential pressure to the atmosphere.
A Mankenberg DV differential pressure control valve is a modification of the pressure reducing or back pressure
regulator, built to regulate differential pressures.
A Mankenberg MR flow control valve is a modification of the pressure – reducing or back pressure regulator,
built to regulate flow rate.
Mankenberg valves are supplied as standard for screw-mounted or flange-mounted pipeline/tank connections –
also for special connections if required.
The upper limit of the permissible operating data for pressure and temperature is permanently marked on each
valve supplied.
A pressure-reducing valve / back pressure regulator / differential pressure control valve /
flow control valve / vacuum control valve is not a safety valve. A suitable valve must be
present in the system to limit any excess pressure.
Danger
Pressure-regulating valves are generally supplied with a slackened spring and have to be
adjusted to the required pressure after being installed. The required pressure measuring
devices must be installed in an adequate distance in front of and behind the valve. They are
Note
not included in the supply schedule of Mankenberg.
Pressure-regulating valves are generally supplied with an open bonnet to facilitate
maintenance.
Valves with a sealed bonnet and leakage line connection can be supplied for toxic or
Caution
hazardous media. In this case the user must make sure that a suitable leakage line is
installed.
operating_manual_RP824_en_de.25.1 Issue 22.12.2025
for the addresses. Technical information is also available at
4
Further
Made in Germany