
26
Installation
NOTE!
Excessive torque when tightening the fastening screw
cannot ensure the degree of protection IP65/IP67.
▶
The fastening screws must only be applied with a maximum
torque of 1.5 Nm.
→
Attach the control unit to the actuator using the two lateral
fastening screws. Only lightly tighten the screws (maximum
torque: 1.5 Nm).
Connection
piece
Pilot air
ports
Actuator
Fastening
screws (x 2),
max. 1.5 Nm
Fig. 14: Control unit installation
8.3.4
Turning actuator
The position of the ports can be smoothly aligned by turning the
actuator 360°.
Only the actuator can be rotated. It is not possible to rotate
the control unit against the actuator.
NOTE!
Damage to the valve seat seal or seat contour.
▶
When turning the actuator, the valve must be in the open
position.
Procedure:
→
Clamp valve body in a holding device (only for valves which
have not yet been installed).
→
For
control function A
:
Without control unit:
pressurise the pilot air port 1 with com
-
pressed air (5 bar): Valve opens.
With control unit:
open the valve in accordance with the oper
-
ating instructions of the control unit.
→
Counter with a suitable open-end wrench on the wrench flat of
the nipple.
Type 2301
English
Summary of Contents for 2301 Series
Page 48: ...www burkert com ...