Installation On Process Valves Of Series 20Xx - Burkert 8697 Manuel D'utilisation

3. Installation of the Pneumatic Control Unit
Supports
Pilot air
ports
Fig. 9: Installation of the Pneumatic Control Unit, 21xx series
→
Align the Pneumatic Control Unit until the supports of the Pneumatic
Control Unit can be inserted into the pilot air ports of the actuator
(see also "Fig. 9").
→
Push the Pneumatic Control Unit, without turning it, onto the
actuator until no gap is visible on the form seal.
NOTE!
Too high torque when screwing in the fastening screw does
not ensure degree of protection IP65 / IP67.
▶ The fastening screws may be tightened to a maximum torque of
0.5 Nm only.
→
Attach the Pneumatic Control Unit to the actuator using the two
side fastening screws. In doing so, tighten the screws only hand-
tight (maximum torque: 0.5 Nm).
Type 8697
Installation
Fastening
screws
max. 0,5 Nm
7.3. Installation on process valves of
series 20xx
Procedure:
1. Install switch spindle
Fig. 10: Installation of the switch spindle (1), series 20xx
→
Unscrew the transparent cap on the actuator.
→
Using a hexagon socket key, unscrew the orange/yellow position
indicator from the inside of the actuator.
→
Press the O-ring downwards into the cover of the actuator (see
"Fig. 11").
→
Manually screw the switch spindle (and the plugged-on guide
element) together with the plastic part onto the spindle of the
actuator, but do not tighten spindle yet.
english
Transparent cap
Position indicator
Actuator
15