Burkert Type 3239 User Manual
Page 17
17
Installation
procedure:
→
Cross-loosen fastening screws and remove actuator with dia-
phragm from the body.
→
Weld or glue body in the pipeline.
→
After welding or gluing in the body, smooth the body surface (if
required) by grinding.
→
Clean the body carefully.
→
Place actuator on the body.
→
Lightly cross-tighten the fastening screws until the diaphragm is
between the body and actuator.
Do not tighten screws yet.
→
Activate the diaphragm valve twice to position the diaphragm
correctly.
→
Tighten the fastening screws up to the permitted tightening
torque (see tables in chapter „8.3.2 Tightening torques for
diaphragms“).
8.3.2 Tightening torques for diaphragms
Orifice
(diaphragm size)
dn [mm]
actuator pps or stainless steel
diaphragm
epdm / fkm
diaphragm
ptfe/advanced
ptfe/laminated
advanced ptfe
8
2
2,5
15
3,5
4
20
4
4,5
25
5
6
32
6
8
40
8
10
50
12
15
Tab. 8: Tightening torques for diaphragms. Actuator PPS or
stainless steel
Orifice
(diaphragm size)
dn [mm]
actuator stainless steel
diaphragm
epdm / fkm
diaphragm
ptfe/advanced
ptfe/laminated
advanced ptfe
65
20
30
80
30
40
100
40
50
Tab. 9: Tightening torques for diaphragms. Actuator stainless steel
english
Type 3232, 3233, 3233 K, 3234,
3235, 3239