Burkert Type 2012 User Manual
Page 11
11
Replacingthevalveset
Type 2000, 2002, 2012
Pin
Swivel plate
Graphite seal
Figure 1:
Replacing the valve set
→
Calk pin bores on both sides of the swivel plate with chisel or prick punch.
→
Carefully remove old graphite seal
5
from the body
1
.
→
Insert new graphite seal
5
.
→
only for va body: Lubricate nipple thread
6
with Klüber paste UH1 96-402.
→
only for type 2002: Use sealing tape.
note!
damage to the seat contour!
▶ During installation, take care that there is no damage to the seat contour.
• Observe tightening torques according to “Table 1”.
→
for control function a (cfa): Pressurize lower control air connection with compressed air (5 bar).
→
Screw in valve actuator with nipple
6
into the body.
→
only for control function a (cfa): Rescrew cover
31
with special wrench.
→
Check the valve for function and leaks.
tightening torques
dn (mm)
tightening torques (nm)
15
45
20
50
25
60
32
65
40
65
50
70
65
70
Table 1:
Valve body tightening torques
english