Mankenberg RP 824 Originalbetriebsanleitung Seite 18

Original operating manual
pilot-operated pressure regulators RP 824
Type of fault
Functional fault
Leakage at the seat means
the set inlet or outlet pressure
is not correctly regulated:
Clean the functional parts
Functional fault
Cleaning alone – see above –
cannot rectify the fault:
The fitting must be repaired
operating_manual_RP824_en_de.25.1 Issue 22.12.2025
Action
A foreign object may be jammed in the seat and be preventing proper
sealing:
fully release the tension on the DM pressure-reducing valve spring
ully release the tension on a UV back pressure regulator spring
on a vacuum control valve, observe the above remarks according to the
design
so that the valves open and foreign objects can be flushed out.
If the functional fault cannot be rectified in this way:
cleaning is necessary: the valve must be dismantled
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
When the valve is not under pressure, take off the spring module by
releasing the clamp rings (or the screw connection) and dismantle the
diaphragm (or piston/bellows) and functional parts for cleaning. Here all
parts of the maintenance set should be renewed.
Afterwards, assemble the fitting and readjust it, as described under
section Initial start-up [Page 14].
If during cleaning it is found that the control mechanism (diaphragm, piston
or bellows), the cone or other functional parts are damaged:
Repair necessary: damaged parts have to be replaced..
If the repair is to be carried out in the customer's workshop:
make a note of all data according to the markings on the fitting and order
the spare parts and necessary instructions from MANKENBERG. See
section Further information [Page 19]
or:
Send the fitting to the manufacturer for repair. See section
information [Page 19] for the addresses.
18
Danger of fatalities
[Page 7].
for addresses.
Further
Made in Germany