Troubleshooting Help - Mankenberg Rp 824 Originalbetriebsanleitung

Original operating manual
pilot-operated pressure regulators RP 824

13 Troubleshooting help

Be sure to observe section
Spare parts must be ordered with all the details on the nameplate. Only original parts from the manufacturer
MANKENBERG may be installed.
MANKENBERG experts are available to help in rectifying faults as quickly as possible. See section
information [Page 19] for the addresses.
If functional or corrosion damage is detected during maintenance or after a fault:
consult MANKENBERG to find out whether a more suitable fitting is available or whether the
note damaged part can be supplied in a better-suited material.
Type of fault
Leakage at a connection body
parts (flange or clamp ring):
reseal connection
Leakage on the bonnet
The valve must be repaired
operating_manual_RP824_en_de.25.1 Issue 22.12.2025
Safety instructions [Page 5]
Action
Tighten the screws clockwise (tighten flange screws crosswise).
If the screws of the body connection have to be loosened or removed (=
unscrewing in the anticlockwise direction):
To prevent any risk for operating personnel, make sure that this repair
measure is only carried out on a section of pipe that is not under pressure.
Take note of section
[Page 10].
The control mechanism (diaphragm, piston or bellows) is defective and
has to be replaced:
Repair necessary, as described further below.
The pretensioned spring must be fully relaxed before a fitting is
dismantled!
To prevent any risk for operating personnel, make sure that this repair
measure is only carried out when the fitting is not under pressure. Take
note of section Special hazards
uwhen rectifying faults.
danger of fatalities
Special hazards [Page 7]
danger of fatalities
[Page 7].
17
Further
and then section Installation
Made in Germany