Gemü 534 Original Einbau- Und Montageanleitung Seite 26

9. Fix with nut d (hold spindle b with
appropriate tool that will not damage the
spindle surfaces).
10. Insert new gasket 4 in valve body 1.
11. Assemble actuator A as described in
chapter 12.3, items 1-5.
12.3 Assembly of actuator
CAUTION
Correct combination of actuator and
valve body!
® Risk of damage to the actuator and
valve body.
Ensure correct combination of actuator
G
and valve body of control valves with a
reduced valve seat.
Compare the product label of the
G
actuator with the valve body marking.
Valve body
marking
Product label of actuator
RAxxx
RBxxx
RCxxx
RDxxx
RExxx
RFxxx
RGxxx
RHxxx
RJxxx
RKxxx
RMxxx
1. Move actuator A to the open position.
2. Actuator rotatable 360°. Position of the
control medium connectors is optional.
3. Lubricate thread of the union nut a with a
suitable lubricant.
4. Place actuator A on valve body 1
approx. 90° anticlockwise to the desired
end position of the control medium
connectors and screw it down hand tight
using union nut a.
5. Tightening the union nut a with an open-
end wrench (torques see table below)
534
RXXX
Valve body marking
R002
R004
R006
R008
R010
R012
R015
R020
R025
R032
R040
rotates the actuator clockwise approx.
90° to the desired position.
6. Move actuator A to the closed position,
check function and tightness of
completely assembled valve.
Nominal size
DN 15
DN 20
DN 25
DN 32
DN 40
DN 50
13 Commissioning
Corrosive chemicals!
® Risk of caustic burns!
Check the tightness of the
G
media connections prior to
commissioning!
Use only the appropriate
G
protective gear when
performing the tightness
check.
Protect against leakage!
Provide precautionary measures
G
against exceeding the maximum
permitted pressures caused by pressure
surges (water hammer).
Prior to cleaning or commissioning the
plant:
Check the tightness and the function of
G
the valve (close and reopen the valve).
If the plant is new and after repairs rinse
G
the piping system with a fully opened
valve (to remove any harmful foreign
matter).
Cleaning:
The plant operator is responsible for

selecting the cleaning material and
performing the procedure.
28 / 36
Torques [Nm]
90
100
120
120
150
200
WARNING
CAUTION