Burkert Type 2012 - Manual (Page 22)

22
Conversionofcontrolfunction
Type 2000, 2002, 2012
→
Remove filler piece
19
with intermediate washer
20
and O-ring
21
(filler piece is not required for CFB).
→
Insert pressure springs
35
.
→
Place intermediate washer
20
and lightly lubricated O-ring
21
on spindle.
→
Insert pistons
22
and supporting washer
24
.
→
Wet spindle thread
2
with special adhesive LOCTITE 274 and screw on nut
25
.
→
Mount position indicator
26
.
→
Insert new O-ring
30
into the groove of the actuator body.
Do not damage sealing edges when replacing the seal!
→
Replace graphite seal
5
.
→
only for va body: Lubricate nipple thread
6
with Klüber paste UH1 96-402.
→
Clamp body
1
.
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 3”.
→
Screw in nipple
6
with actuator in valve body
1
.
→
for actuator size G (100 mm) and h (125 mm): Insert washer
40
.
→
Mount cover
31
and screw tightly with special wrench.
→
Check the valve for function and leaks.
tightening torques:
material of nipple
thread
diameter tightening torques
(nm)
Brass or stainless
steel
15 45
20 50
25 60
32 65
40 65
50 70
65 70
Table 3: Valve body tightening torques
english