KSB ECOLINE FYC, Operating Manual

Page: 85 / 100

6 Commissioning/Start-up/Shutdown
85 of 100
6 Commissioning/Start-up/Shutdown
6.1 Commissioning/start-up
6.1.1 Prerequisites for commissioning/start-up
Before commissioning/start-up of the valve, ensure that the following requirements
are met:
▪
The material, pressure and temperature data on the valve complies with the
operating conditions of the piping.
(
ð
Section 4, Page 13)
.
▪ The material's chemical resistance and stability under load have been checked.
The nominal pressure classes only apply at room temperature. For values for higher
temperatures, refer to the pressure/temperature ratings tables.
(
ð
Section 4, Page 13)
. Using the valve in conditions deviating from those specified
will lead to overload which the valves cannot withstand.
CAUTION
Welding beads, scale and other impurities in the piping
Damage to the valve!
▷ Remove any impurities from the piping.
▷ If necessary, install a strainer.
1.
Thoroughly clean, flush and blow through all vessels, pipelines and connections
(especially of new installations).
2.
Remove the valve's flange covers before installing it in the piping.
3.
Check that the inside of the valve is free from any foreign objects. Remove any
foreign objects.
4.
If required, install a strainer in the piping.
DANGER
Surge pressure/water hammer potentially occurring at high temperatures
Danger to life caused by burns or scalds!
▷ The max. permissible valve pressure must not be exceeded
(
ð
Section 4, Page 13)
.
▷ Use valves made of nodular cast iron or steel.
▷ Operator shall provide general safety measures for the system.
CAUTION
Aggressive flushing and pickling agents
Damage to the valve!
▷
Match the cleaning operation mode and duration of flushing and pickling to
the body and seal materials used.
▷ Responsibility for the compatibility of the pickling media used and the pickling
procedure itself lies with the pickling company.
Functional check
The following functions must be checked:
1.
Check the shut-off function of the installed valve prior to commissioning/start-up
by opening and closing it several times.
2.
Check the gland packing (461) for leakage when it is subjected to full operating
pressure and temperature for the first time.
3.
If the gland follower (452) is loose, evenly re-tighten the nuts (920.1).