Burkert Type 2301 - Manual (Page 39)

39
Maintenance, cleaning
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).
1
2
Pilot air port
Pilot air port
Fig. 28: Connections
→
Press out packing gland:
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
upplied lubricant.
→
Connect the individual parts to the spindle in the specified
direction and sequence (as illustrated in “Fig. 29” or “Fig. 30”).
→
Push packing gland into the packing gland tube.
If the valve features a PEEK spindle guide (series production
status up to April 2012), we recommend replacing it with a
VA spindle guide (see “Tab. 22: VA spindle guide for packing
gland”, page 45)
→
Grease thread of the spindle guide (Klüber paste UH1 96-402).
→
Screw spindle guide back in. Observe tightening torque (see
“Tab. 14: Tightening torques of spindle”)!
Insertion direction for
packing gland parts
Support ring
Upper
gaskets
Upper
pressure ring(s)
Pressure
spring
Lower
pressure ring
Lower
gaskets
Spindle diameter 10 mm Spindle diameter 14 mm
Fig. 29: Seal set for packing gland
english
Type 2301