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Installation on process valves of series 21xx – Burkert Type 8697 User Manual

Page 13

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13

Installation

7.2.

installation on process valves of
series 21xx

procedure:
1. install switch spindle

Transparent cap

Actuator

Pilot air ports

(plug-in hose con-

nectors with collets or

threaded bushings)

Fig. 5: 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).

O-ring
Spindle extension

Guide element

Actuator cover

Groove ring

Switch spindle

Switch cam

3

max. 5 Nm

max. 1 Nm

Spacer sleeve

Maximum

distance

Fig. 6: 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

Type 8697