Ball
valves should be transported and stored with the ball in the
fully open or fully closed position.
Flanged
ends and welded ends should be protected.
End
protection should be removed only when the valve is installed in
the line.
Valves
should be handled using the proper lifting lugs.
For
welded-end valves, advise OSCAR if there will be a post-weld heat
treatment (transition pups may be necessary to avoid damages to
seals).
Flush
and clean the line before opening/closing the valve.
Make
sure no line-testing fluid is left in the line and/or the valve
body.
Avoid
leaving the valve body filled with salt water to prevent internal
corrosion.
During
line-testing, valves should be left in the partially open
position for the minimum possible amount of time.
Standard
ball valves should be used for on-off service only. Throttling
service (use of the valve with the ball partially open) can
damage the seats.
Make
sure to take into consideration the actual service conditions
when selecting materials for O-rings and seat inserts.
Always
specify anti explosive decompression material for valves to be
used in high pressure gas service.
Do not use the
actuator to lift the valve.
