Burkert 2030 Manuel D'utilisation page 25

Types 2030, 2031, 2031 K
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Loosen fastening screws crosswise and remove actuator
together with diaphragm from the housing.
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Weld or glue housing into the pipeline.
procedure for control functions B and i
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Loosen fastening screws crosswise and remove actuator
together with diaphragm from the housing.
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Weld or glue housing into the pipeline.
Mount actuator and diaphragm on the housing:
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After welding or gluing in the housing, smooth the housing surface
by grinding if required.
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Carefully clean the housing.
procedure for control function a
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Pressurize lower control air connection with compressed air
(value as indicated on the rating plate) (see "Fig. 5: Control air
connection").
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Place actuator on the housing.
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Lightly cross-tighten the housing screws until the diaphragm is
between the housing and actuator.
do not tighten the screws yet.
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Actuate the diaphragm valve twice to position the diaphragm
correctly.
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Without applying pressure, tighten the housing screws to the
permitted tightening torque (see "Table 9: Tightening torques for
diaphragms").
Installation
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Pressurize lower control air connection with compressed air (value
as indicated on the rating plate).
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Check the tightening torque of the screws again.
procedure for actuator with control functions B and i:
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Place actuator on the housing.
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Lightly cross-tighten the housing screws without pressurisation
until the diaphragm is between the housing and actuator.
do not tighten the screws yet.
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Pressurize upper control air connection with compressed air (value
as indicated on the rating plate) (see picture below "Control air
connection").
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Actuate the diaphragm valve twice.
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Tighten the housing screws to the permitted tightening torque
(see "Table 9: Tightening torques for diaphragms").
Upper control air connection
(for CFB and CFI)
Lower control air connection
(for CFA and CFI)
Fig. 5: Control air connection
English
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