Gemu 512 - Assembly of actuator and gasket 4; Assembly; disassembly of gland packing for GEMÜ 512

512, 514, 532
12 / 16
1.4 Assembly of actuator and
gasket 4
1. Move actuator A to the open position.
2. Insert new gasket 4 in valve body 1.
3. Actuator rotatable 360°. Position of the
control medium connectors is optional.
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) 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.
+
Important:
Replace gasket 4 during every
actuator disassembly / assembly.
Nominal size Torques [Nm]
DN 10 90
DN 15 90
DN 20 100
DN 25 120
DN 32 120
DN 40 150
DN 50 200
DN 65 260
DN 80 280
2 Assembly / disassembly of
gland packing for GEMÜ 512
Please refer to installation, operating and
maintenance instructions GEMÜ 512 -
chapter 11.1 "Installing the valve" and
chapter 20 "Sectional drawings and spare
parts".
A
a
4
2
1
30
Mounting parts
Actuator
fl ange
Valve body
fl ange
15
19
14
1 Valve body
4 Gasket
14 Seat seal
30 Gasket
A Actuator
a Union nut
2 Spindle
15 Valve plug
19 Retaining nut