bürkert 2030 Schnellstartanleitung Seite 11

Type 2030, 2031, 2031 K, 2032,
2033, 2037
7.3 Installation
If used in a corrosive environment, we recommend running
a pneumatic hose from all free pneumatic connections to a
neutral atmosphere.
WARNING!
Risk of injury from incorrect installation!
Non-observance of the specified tightening torque is hazardous
as the device may be damaged.
▶ Observe tightening torque during installation (see „Tab. 2: Tight-
ening torques for diaphragms").
7.3.1 Devices with welded body
NOTE!
To avoid damage!
Before welding the body, the actuator and diaphragm must
be removed.
Remove actuator and diaphragm from the body:
Procedure for control function A
→
Pressurize lower control air connection with compressed air
(value as indicated on the type label) (see „Fig. 7"). This is
required to detach the diaphragm without damage from the body.
→
Loosen fastening screws crosswise and remove actuator
together with diaphragm from the body.
→
Weld body into the pipeline.
Procedure for control functions B and I
→
Loosen fastening screws crosswise and remove actuator
together with diaphragm from the body.
→
Weld body into the pipeline.
Assembly
Mount actuator and diaphragm on the body:
→
After welding in the body, smooth the body surface by grinding if
required.
→
Carefully clean the body.
Procedure for control function A
→
Pressurize the lower control air connection with compressed air
(value on type label) (see „Fig. 7: Control air connection").
→
Place actuator on the body.
→
Gently tighten the body screws in diagonal pairs until the dia-
phragm lies between the body and actuator.
Do not fully tighten screws yet.
→
Actuate the diaphragm valve twice to position the diaphragm
correctly.
→
Without applying pressure, tighten the body screws to the permitted
tightening torque (see „Tab. 2: Tightening torques for diaphragms").
→
Pressurize the lower control air connection with compressed air
(value on type label).
→
Check the tightening torque of the screws again.
Procedure for actuator with control functions B and I:
→
Place actuator on the body.
→
Gently tighten the body screws in diagonal pairs without pres-
surization until the diaphragm is between the body and actuator.
Do not fully tighten screws yet.
→
Pressurize the lower control air connection with compressed air
(value on type label) (see following „Fig. 7: Control air connection").
→
Actuate the diaphragm valve twice.
english
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