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
▪ The actuator has been connected to the power supply in accordance with the
actuator's operating manual.
▪ The piping has been flushed.
▪ For valves with electric or pneumatic actuators travel limits have been set.
▪
The material, pressure data and temperature data of the valve are compatible
with the operating conditions of the piping. (
ð
Section 6.2, Page 23)
▪
The material's chemical resistance and stability under load have been checked.
6.1.2 Actuation/operation
CAUTION
Excessively long idle periods
Damage to the valve!
▷ Check the function by opening and closing the valve at least once or twice a
year.
6.1.2.1 Actuating element – handwheel
Viewed from above, the valve is opened by turning the handwheel in counter-
clockwise direction, and closed by turning the handwheel in clockwise direction.
Direction symbols are marked on the top of the handwheel.
6.1.3 Functional test
Visual inspection Check the following functions:
1. After the valve has been subjected to load conditions or heated up for the first
time check the joint between the body and the bonnet/cover established by
bolting 902.1/920.1 and joint ring 411 for tightness.
2. To avoid stress or distortion, open the valve by approx. two full counter-
clockwise handwheel turns.
3. If bonnet/cover bolting 902.1/920.1 has loosened, evenly re-tighten it crosswise.
NOTE
Re-tightening the bonnet/cover bolting is particularly important for valves operated
at temperatures exceeding 200 °C.
6.1.4 Information on the mechanical components
6.1.4.1 Moving parts
The valve/actuator combination comprises moving parts which are not fully enclosed.
Depending on the type and design, these include the following:
▪ Stem
▪
Stop
▪ Position switches
▪ Coupling
▪
Other force-transmitting equipment
Depending on the actuator type and design, further moving parts may be present,
e.g. emergency handwheels turning along with the actuator.
Valve commissioning/start-up is not permitted until both valve ends have been
connected to the pipeline and any risk of injuries can be ruled out.