Burkert 2301 Element Manuel D'instructions page 7

VA spindle guide SP22:
→
Unscrew spindle
guide with the aid of
an open-end wrench.
WARNING!
Risk of injury from ejected parts!
When the spindle opening is exposed, the individual parts of the packing
gland are pressed out at an undefined speed when the control air connection
is pressurized.
▶ Before pressurizing with control air, safeguard the ambient area of the dis-
charge opening (e.g. place spindle on a firm base).
Packing gland tube
Packing gland
Spacer
Spindle
VA spindle guide
→
Press out packing gland:
For control function A and I:
Pressurize control air connection 1 with 6 ... 8 bar.
For control function B:
Pressurize control air connection 2 with 6 ... 8 bar.
→
Grease the individual parts of the new packing gland with the supplied
lubricant.
→
Place the individual parts on the spindle in the specified direction and
sequence (see "Fig. 2", page 8).
→
Push packing gland into the packing gland tube.
If the valve features a PEEK spindle guide (SP10 / SP14 series-pro-
duction status up to April 2012), we recommend replacing it with a
VA spindle guide. They are available from your Bürkert sales office.
→
Grease spindle guide thread with lubricant (e. g. Klüberpaste UH1
96-402).
→
Screw spindle guide in again. Observe tightening torque
(see "Tab. 3", page 8)!
english
2
1
Control air
connection
7