Burkert Type 2036 - Manual (Page 30)

30
Malfunctions
Type 2036
→
Tighten the diagonally opposed body screws / nuts until there
is visible, uniform mechanical contact between the valve body,
diaphragm and actuator.
→
Switch the diaphragm valve twice.
Warning!
risk of injury from discharge of medium and release of
pressure.
▶ Tighten the body screws sufficiently (see "Tab. 5").
→
Move the actuator to the lower actuator position (CFA, NC: by
removing pilot pressure; CFB, NO: by applying the pilot pressure).
→
Without applying pilot pressure, tighten the body screws to the
permitted tightening torque (see "Tab. 5").
size tightening torque [nm]
RV50 6
RV70 17
RV110 30
Tab. 5: Tightening torque
13. MalfuncTiOns
malfunction cause / remedial action
Actuator
does not
switch.
Pilot air port interchanged 6)
CFA, NC: Connect the pilot air port 1 and/or 3
CFB, NO: Connect the pilot air port 2 and/or 4
Pilot pressure too low
See pressure specifications on the type label.
Medium pressure too high
See pressure specifications on the type label.
Valve is not
sealed. Medium pressure too high
See pressure specifications on the type label.
Pilot pressure too low
See pressure specifications on the type label.
Actuator is rotated by 90° and installed opposite
the valve body.
→
Guide pin, identification plate and body seats
must be aligned in parallel (see "Fig. 22").
Flow rate
reduced. Diaphragm bulging
→
Replace diaphragm.
Tab. 6: Malfunctions
6)
see "Fig. 17: Pneumatic connection".
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