Installation On Process Valves Of Series 21Xx - Burkert 8697 Manuel D'utilisation

7.2. Installation on process valves of
series 21xx
Procedure:
1. Install switch spindle
Transparent cap
Pilot air ports
(plug-in hose con-
nectors with collets or
threaded bushings)
Actuator
Fig. 6: Installation of the switch spindle (1), 21xx series
→
Unscrew the transparent cap on the actuator and unscrew the
position display (yellow cap) on the spindle extension.
→
For version with plug-in hose connector, remove the collets (white
nozzles) from both pilot air ports (if present).
Type 8697
Installation
Maximum
distance
Fig. 7: Installation of switch spindle (2), 21xx series
NOTE!
Improper installation may damage the groove ring in the
guide element.
The groove ring is already be pre-assembled in the guide element
and must be "locked into position" in the undercut.
▶ When installing the switch spindle, do not damage the groove ring.
→
Push the switch spindle through the guide element.
english
Switch spindle
Switch cam
Spacer sleeve
Groove ring
Guide element
max. 1 Nm
max. 5 Nm
Actuator cover
O-ring
Spindle extension
13