Assembly Of Actuator; Nominal Size; Valve Body Material (Code); Seat Seal (Code) - GEM 554 Installation, Operating, & Maintenance Instructions

1. Disassemble actuator A as described in
chapter 12.1, points 1-4.
2. Remove gasket 4.
3. Loosen nut d on spindle b (hold
spindle b with appropriate tool that
will not damage the spindle surfaces).
Remove washer e and seat seal 14.
4. Clean all parts, do not scratch or
damage the parts during cleaning.
5. Insert new seat seal 14.
6. Insert washer e.
7. Apply appropriate mounting glue on the
thread of spindle b.
8. Fix with nut d (hold spindle b with
appropriate tool that will not damage the
spindle surfaces).
9. Insert new gasket 4 in valve body 1.
10. Assemble actuator A as described in
chapter 12.3, points 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.
Rxxxx
Valve body marking
2/2-way body
Product label of
actuator
RAxxx
RBxxx
RCxxx
RDxxx
RExxx
Rxxxx
Valve body marking
Angle body
Valve body marking
R002
R004
R006
R008
R010
Product label of
actuator
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. Actuator sizes 0, 0K, 1, 1K, 2, 2K, 3, 3L,
4, 4L: 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. Actuator size B: place actuator A on
valve body 1 and tighten with a pin
wrench (pin size 3 mm). The control
medium connector is rotatable 360°,
even after the actuator is fi xed.
Actuator sizes 0, 0K, 1, 1K, 2, 2K, 3, 3L,
4, 4L: Tightening the union nut a with
an open-end wrench (torques see table
below) 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.
Actuators B, 0, 1, 2, 3 and 4

Nominal size

DN 6
DN 8
DN 10
DN 15
DN 10
DN 15
DN 20
DN 25
DN 32
DN 40
DN 50
DN 65
DN 80
35 / 44
Valve body marking
R012
R015
R020
R025
R032
R040
Torques [Nm]
35
35
35
35
90
90
100
120
120
150
200
260
280
554