Operating Instructions
Disk type non-return valves
RV Solid series
Type: P740, P741, P745, P750 and P760
DN 010 – 150, OD 0.50” – 6.00”, ISO 008 – 125
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Copy of the original operating instructions
BAA RV Solid
en
7.
Maintenance of disk type non-return valves
DANGER
The operator of the fittings must ensure that all people carrying out activities on the
fittings are suitably qualified and also able to recognize whether the closing bodies of
these fittings are located in their immobile final locations within the fittings.
In addition, the operator of the fittings must ensure that these people are instructed not
to reach into the media connections on the fittings if this is not already the case.
During servicing, maintenance, and disassembly of the disk type non-return valves, it
must be ensured that power-driven switching operations can only be initiated by people
working directly on the valves.
The operator of the disk type non-return valves must ensure that all people who carry
out this activity are suitably qualified and are also able to recognize whether power-
driven switching operations on the fittings, apart from by themselves, can be actuated
by someone else.
7.1.
Inspection of the disk type non-return valve
Disk type non-return valves must be checked at regular intervals and maintained as required.
7.2.
Maintenance, troubleshooting and repair of the disk type non-return valve
Maintenance, troubleshooting and repairs may only be executed by competent and trained staff.
Before starting maintenance, troubleshooting or repair work, the fittings must be rinsed with cold water for a
sufficient period in order to ensure that no cleaning products or hot water are left behind.
The valves are to be emptied thereafter.
Prior to the maintenance, troubleshooting and repair work, the operator of the system in which the disk type non-
return valves have been installed, must ensure that the fittings are de-pressurized and cannot be refilled with
agents or re-pressurized during the entire period of work.
The operator of the system in which the disk type non-return valves have been installed, must ensure that the
system area in which the maintenance, troubleshooting and repair work takes place, has been cordoned off against
access by unauthorized persons, and that the exclusion zone will be maintained during the entire period of work.
7.2.1.
Seal gaskets
Practice-oriented maintenance intervals can only be determined by the respective user/operator because they depend
on the following application parameters:
Operating time per day
Switching intervals
Process parameter (temperature, pressure, flow)
Type of product (fat content, aromas, acids)
Type of cleaning (CIP / SIP / Disinfection)
Sealant
Maintenance intervals of 6-24 months are recommended as a standard value in compliance with the permissible pa-
rameters (see chapter "Permissible operating media, pressures and temperatures") and proper use.
