Argus Ball Valve EK, FK and HK Operating Manual – BA1000 EN
7 Maintenance
Page 43 of 67
7.2
Required Spare Parts for Maintenance
Under particularly stressful operating conditions, wear and tear to the sealing elements of
the Argus Ball Valve may occur after a certain period of time. In addition, very critical or
severe service may require that components of the Argus Ball Valve be periodically
renewed.
For maintenance works appropriate spare parts are required. Flowserve Flow Control
GmbH provides repair sets or replacement kits for each Argus Ball Valve.
Clearly identify the Argus Ball Valve so Flowserve Flow Control GmbH can provide
the corresponding repair sets or replacement kits.
Technical identification is made either by referring to the item in the order
documents, delivery note, invoice, or using the data stated on the nameplate.
7.3
Maintenance Schedule
The recommended inspections can be carried out in the installed state. As a rule,
normal industrial plant operation does not have to be interrupted.
In case of any leakage, damage and/or incorrect condition, see Chapter
8 Troubleshooting Guide.
Table 5:
Recommended maintenance inspections
No. Inspection
Schedule/Cycles
1
Inspect the flange and welded connection for leakages.
Every 6 months
2
Inspect the Argus Ball Valve’s seals for leaks and retighten
the stuffing box if present (see Section 8.4 Retightening the
Stuffing Box Screws (if present) and Replacing the Seals).
3
Inspect the test connection (leakage detector at the stem
seal) or the drain/safety plug (see Section 8.5 and 08.6) – if
present – for leaks to the outside.
4
Inspect the Argus Ball Valve for external damage due to
corrosive influences or mechanical damage.
5
Clean the Argus Ball Valve and repaint if necessary.
6
If possible during industrial plant operation, open and
close the Argus Ball Valve and ensure that the ball valve
stem runs smoothly.
Jerky running of the ball valve stem can indicate
increased torque.
With stem seals made of graphite jerky, running of the
ball valve stem is possible without any defect.
7
Check the actuator for fixed installation and proper
function.
8
Check all accessories for tight fit and proper function.
