Burkert Type 2301 - Manual (Page 37)

37
Maintenance, cleaning
removing the actuator from the valve body
→
Clamp the valve body in a holding device
(applies only to valves which have not yet been installed).
note!
damage to the seat seal or the seat contour!
▶ When removing the actuator, ensure that the valve is in open
position.
→
control function a:
Without unit control: pressurize the pilot air port 1 with com-
pressed air (5 bar): valve opens.
With unit control: open the valve according to the operating
instructions for the control unit.
Actuator
Nipple
Valve body
Flats for open-end
wrench
Pilot air port
Exhaust air port
Pilot air port
2
1
Fig. 23: Valve
→
Using a suitable open-end wrench, place the wrench flat on the pipe.
→
Unscrew the actuator from the valve body.
removing the control cone set
Spindle
Dowel pin
Control cone
Graphite seal
Fig. 24: Replacing the control cone set
note!
important information for the problem-free and safe func-
tioning of the device!
The sealing face of the control cone must not be damaged.
procedure:
→
Knock out the dowel pin with a suitable pin punch.
pin punch ø 4 mm, for spindle diameter 10 mm.
pin punch ø 5 mm, for spindle diameter 14 mm.
→
Remove control cone.
english
Type 2301