KSB ECOLINE GT 40, Руководство по эксплуатации

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6 Commissioning/Start-up/Shutdown
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ECOLINE GT 40
7367.8/06-EN
6 Commissioning/Start-up/Shutdown
6.1 Commissioning/start-up
CAUTION
Welding beads, scale and other impurities in the piping
Damage to the valve!
▷
Remove any impurities from the piping, e.g. by flushing the pipe with the valve
in fully open position.
▷
If necessary, install a strainer.
DANGER
All work performed on the actuator:
Risk of injury!
▷
Observe the actuator’s operating manual.
6.1.1 Prerequisites for commissioning/start-up
DANGER
Surge pressure/water hammer potentially occurring at high temperatures
Danger to life caused by burns or scalds!
▷
Do not exceed the valve's maximum permissible pressure.
▷ Use valves made of nodular cast iron or steel.
▷ The operator shall provide general safety measures for the system.
CAUTION
Overloading of valve
Damage to the valve!
▷
The nominal pressure classes only apply at room temperature. Refer to the
pressure/temperature ratings tables for higher temperature values. . Using the
valve in conditions deviating from those specified will lead to overload which
the valve cannot withstand.
CAUTION
Aggressive flushing liquids and pickling agents
Damage to the valve!
▷ Ensure that cleaning procedure and duration match the valve body materials
and seal materials when performing flushing and pickling.
▷ Responsibility for the compatibility of the pickling media used and the pickling
procedure itself lies with the pickling company.
Before commissioning/start-up of the valve ensure that the following requirements
are met:
▪
The valve has been connected to the piping at both ends.
▪ The shut-off function of the installed valve has been checked by opening and
closing it several times.
▪ Gland packing 461 has been checked for leakage before it is subjected to load
conditions for the first time. If gland follower 452 has loosened, re-tighten nuts
920.2 evenly and alternately (crosswise). There must be no metal-to-metal
contact between gland follower 452 and blade 360.