Burkert 2035 Manuel D'utilisation page 35

Type 2035 / 3236
13.2.3. rV50 and rV70 pneumatic actuation
Warning!
danger of injury due to flow medium, operating pressure and
movable parts.
▶ Before disassembly, make sure that the valve is not under pressure
and completely drained.
▶ Wear protective clothing.
risk of injury when opening the actuator.
The actuator contains tensioned springs. If the actuator is opened,
injuries may be caused by the springs jumping out.
▶ The actuator must not be opened.
disassembly of the actuator and diaphragm
→
Move the actuator to the upper actuator position (CFA, NC, NC: by
applying pilot pressure; CFB, NO: by removing the pilot pressure).
→
Mark the position of the actuator in relation to the valve body.
→
Unscrew the four body screws / nuts that connect the valve body
with the actuator. Remove the valve body
→
Remove the covers (for RV50 with PP cover: muffler and screw)
→
Loosen the setscrew on the pressure pieces
→
At the diaphragm, take the pressure pieces out of the actuator
downwards .
4
→
Take the diaphragm out of the pressure pieces sideways
Repairs
.
1
.
3
.
5
1
Body screws
Fig. 30: Disassembly of the RV50, RV70 pneumatic actuators
.
2
2
4
Pressure pieces Diaphragm
3
Setscrew
english
5
35