7 Maintenance
7.1 Periodic Inspection
Regular maintenance and servicing highly depend on the actual operating conditions and the operating frequency of
the valve.
It is recommended to periodically inspect the pipework section for leaks and damage. The flange connections must
also be inspected.
Flowserve Service Teams and "Quick Response Centers" offer
worldwide expert service for inspection, repair, and qualification of
ARGUS ball valves on site or under factory conditions.
The recommended inspection can be executed with the valve installed in line. As a rule, the normal plant operation
does not have to be interrupted:
Inspect the outer seals for leaks and re-tighten if necessary.
Inspect the valve for external damage.
Clean the valve and repaint if necessary.
If possible, open and close the valve and ensure that the valve stem runs smoothly.
A jerky running of the shaft can indicate increased torque.
Inspect all accessories for tight fit and function.
DANGER at automated operation
Keep hands, hair or clothing away from all moving parts! The
operating instructions and safety instructions for the automation
components must be followed.
Failure to do so could result in serious injury.
7.2 Exchanging Parts
Under particularly stressful operating conditions, wear of sealing components of the ball valve may occur after a certain
period of time. Also very critical or severe service may require that parts of the ball valve are periodically renewed.
Only original spare parts may be used.
Spare Part Information
Flowserve provides spare parts for all ARGUS ball valve types. For inquiry or order, it is important that the ball valve in
use is clearly specified.
Technical identification is made either with reference to the item in the order documents of the valve i.e. the order
acknowledgment, delivery note or invoice, or the data taken from the nameplate: order number, article number or serial
number.
Specification particulars for spare parts inquiry/order and for technical
documentation:
Purchase order documents or nameplate
Technical documentation for the exchange
Technical documentation required for disassembly, part exchange and assembly of the valve is available from
Flowserve after clear technical identification of the ball valve and is, in principle, attached to spare part deliveries.
ONLY QUALIFIED PERSONNEL and SUITABLE EQUIPMENT
Only appropriately qualified personnel may be entrusted with
maintenance and repair work. The tools and equipment used must be
suitable and the processes must be safe.
Observe all health and safety regulations.
In case of doubt about the qualification of the personnel or about the
appropriate equipment, Flowserve must be consulted.
As an attachment to this manual, you will find Disassembly and Assembly Instructions for ARGUS FK 75C
and FK 76C.
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