Burkert 2030 Manuel D'utilisation page 28

procedure for control function a
→
Pressurize lower control air connection with compressed air
(value as indicated on the rating plate) (see Fig. 28:Control air
connection).
→
Place actuator on the housing.
→
Lightly cross-tighten the housing screws until the diaphragm is
between the housing and actuator.
do not tighten the screws yet.
→
Actuate the diaphragm valve twice to position the diaphragm
correctly.
→
Without applying pressure, tighten the housing screws to the
permitted tightening torque (see Tab. 9:Tightening torques for
diaphragms).
→
Pressurize lower control air connection with compressed air (value
as indicated on the rating plate).
→
Check the tightening torque of the screws again.
procedure for actuator with control functions B and i:
→
Place actuator on the housing.
→
Lightly cross-tighten the housing screws without pressurization
until the diaphragm is between the housing and actuator.
do not tighten the screws yet.
→
Pressurize upper control air connection with compressed air (value
as indicated on the rating plate) (see below Fig. 28:Control air
connection).
→
Actuate the diaphragm valve twice.
28
English
Types 2 030, 2031, 2031 K, 2032,
Installation
→
Tighten the housing screws to the permitted tightening torque
(see Tab. 9:Tightening torques for diaphragms).
Upper control air connection
(for CFB and CFI)
Lower control air connection
(for CFA and CFI)
Fig. 28: Control air connection
dn tightening torques for diaphragms [nm]
epdM / fkM
8
15 3.5
20
25
32
40
50 12
65 15
Tab. 9: Tightening torques for diaphragms
2033, 2037
ptfe
2 2.5
4
4 4.5
5 6
6 8
8 10
15
20