Cera System CeraValve KST Series Operation And Maintenance Instructions - Page 2

Browse online or download pdf Operation And Maintenance Instructions for Control Unit Cera System CeraValve KST Series. Cera System CeraValve KST Series 6 pages. Ball valve

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M 6
Bolting torque
M 8
M10
Actuator
When mounting an actuator, the factory recommended mounting kit (yoke and
adapter) should be used. Once the actuator has been mounted, it should be made
sure that there is enough overlapping (between ball and seats) in the closed position
and that in the open position no offset is seen (full flow at 100% open). This can be
fine tuned with the mechanical end bolts on the actuator.
Please make sure that these torque limits are not exceeded.
Torque values
For electric actuators: Do not change the setting of the limit switches.
For pneumatic actuators: Respect indicated air supply pressure and do not add
springs without prior checking with the valve manufacturer.
4 Start-up
Before start-up, test the ball valve operation (open / close). In case of higher
operating temperatures, the valve should be tested again at operating temperature
conditions.
In case of sudden thermal shocks be advised that different ceramic
materials tolerate sudden temperature changes differently.
Please respect the following limits of ∆ T:
Dok.-No.
BA-KST 10-02.2
6 Nm
M 12
⇒
13 Nm
M 16
⇒
26 Nm
M 20
⇒
Valve Size
Max. acceptable torque
DN 15
DN 25
DN 40
DN 65
DN 80
DN 100
DN 150
DN 200
CERAVALVE
Ball Valve – KST
47 Nm
M 24
⇒
118 Nm
M 27
⇒
240 Nm
M 30
⇒
M max in Nm
40
100
160
180
190
230
500
-
Al
O
app. 120 K
2
3
ZrO
app. 250 K
2
SiSiC
app. 350 K
SiC
app. 350 K
Si
N
app. 450 K
3
4
410 Nm
⇒
605 Nm
⇒
830 Nm
⇒
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