Burkert 2101 Manuel D'utilisation page 3

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 pressurize the pilot air port 1 with compressed
air (5 bar): valve opens.
→
Using a suitable open-end wrench, place the wrench flat on the
tube.
→
Unscrew the actuator from the valve body.
2
Air discharge connection
CFA, CFB
Pilot air port
CFI
1
Pilot air port
CFA, CFB, CFI
Release bore
Flats for open-end
wrench
→
Unscrew the spindle guide with the aid of the installation wrench
and an open-end wrench (series production status up to January
2013).
→
Unscrew the spindle guide with the aid of a modified socket
wrench (series production status since January 2013).
1)
SP22:
→
Unscrew the VA spindle guide with the aid of an open-end wrench.
The installation wrench or modified socket wrench is
1)
available from your Bürkert sales office.
Series production status
up to January 2013
WArnInG!
Risk of injury from parts jumping out!
When the spindle opening is exposed, the individual parts of the
packing gland are pressed out at an undefined speed when the
pilot air ports is pressurized.
• Before pressurizing with control air, safeguard the ambient area of
the discharge opening (e.g. place spindle on a firm base).
→
Control function A and I Pressurize pilot air port 1 with 6 – 8
bar.
→
Control function B Pressurize pilot air port 2 with 6 – 8 bar.
→
Grease the individual parts of the new packing gland with the
supplied lubricant.
→
Connect the individual parts to the spindle in the specified
direction and sequence.
→
Push packing gland into the packing gland tube.
→
Screw spindle guide / VA spindle guide back in using the instal-
lation tool. Observe torque (see "Tab. 3").
Actuator
Nipple
Valve body
1)
Packing gland tube
Packing gland
Spindle guide
Spindle
Installation wrench
Removing the swivel plate:
→
Knock out the pin with a suitable pin punch.
Pin punch ø 3 mm, for spindle diameter 10 mm on the swivel
plate.
Pin punch ø 5 mm, for spindle diameter 14 mm on the swivel
plate.
Pin punch ø 6 mm, for spindle diameter 22 mm on the swivel
plate.
→
Remove swivel plate.
Series production status since
January 2013
SP10 / SP14
SP22
Support ring
Upper chevron seals
Upper pressure ring
Pressure spring
Lower pressure ring
Lower chevron seals
Spindle guide
VA spindle guide
SP10 / SP14
Tightening torques of spindle
Spindle diameter
10 mm
14 mm
22 mm
Tab. 3: Tightening torques of spindle
VA spindle guide is not included in the seal set
2)
Spindle
Pin
Swivel plate
Graphite seal
Packing gland tube
Packing gland
Spindle guide
Spindle
Packing gland tube
Packing gland
Spacer
Spindle
VA spindle guide
Spacer
2
)
SP22
Tightening torque [Nm]
6
15
60