Burkert 20014453, Быстрый старт, Страница: 13 / 22

13
Installation
Type 3281
→
Place a suitable open-end wrench on the wrench flat of the
body connection.
Open-end wrench
Wrench flat of the
body connection
Fig. 5: Unscrewing the actuator
→ Unscrew actuator from the valve body.
7.4.2 Installing actuator on valve body
Graphite seal
Fig. 6: Seal position
→ Check the seal for damage and replace it if necessary.
DANGER
Danger due to lubricant.
Lubricant may contaminate the medium. There is a risk of
explosion in oxygen applications.
▶
For specific applications use only approved lubricants (e.g. for
oxygen applications or analysis applications).
→
Before re-installation, grease the thread of the body connection
(e.g. with Klüberpaste UH1 96-402 from Klüber).
NOTE
Damage to the valve seat seal or seat contour.
▶
When installing the actuator, the valve must be in the open
position.
→ Screw actuator into the valve body. Observe the tightening
torque of 45 ± 3 Nm.
7.5 Turning actuator
The position of the ports can be aligned steplessly by turning the
actuator through 360°.
NOTE
Damage to the valve seat seal or seat contour.
▶
When turning the actuator, the valve must be in the open
position.
→
Clamp valve body in a holding device (only for valves which
have not yet been installed).
english