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7.Assembly and Disassembly
2021/12
Proceed with caution. There is danger of personal injury.
Never disassemble the valve screws without reading the instructions thoroughly.
Assembly and disassembly of the valves / actuator must only be carried out by qualified staff.
When assembling the diaphragm it is very important to comply with the sequence of steps,
as otherwise, the diaphragm may be damaged. In particular, do not fully tighten the body
until the diaphragm is in the closed position. Otherwise, the diaphragm may deform and be
damaged when the valve is closed.
7.3.
DISASSEMBLY / ASSEMBLY OF THE PNEUMATICALLY ACTUATED VALVE
Disassembly
1.
Apply compressed air to the actuator (10) in
order to set the diaphragm (05) in the open
position. (NC valve only)
2.
Unscrew the Allen screws (23) of the actuator
(10).
3.
Remove actuator (10) from the body (01).
4.
Disconnect the compressed air from the
actuator (10) so that the diaphragm (05) can
be detached.
5.
Remove the diaphragm (05) from the
compressor (63).
Assembly
1.
Turn the actuator (10) so that the valve is in
the closed position. (NC valves only)
2.
Attach the diaphragm (05) to the compressor
(63) so that the metal pin of the diaphragm is
inserted into the groove of the compressor.
3.
Apply compressed air to the actuator (10) in
order to set the diaphragm (05) in the open
position. (NC valve only)
4.
Connect the body (01) to the actuator (10) by
screwing in the Allen screws (23) and washers
(25) without fully tightening the screws (use
fingers to screw in). So that the body (01)
remains fixed to the actuator (10), but not yet
completely tight.
5.
Disconnect the compressed air from the
actuator (10) so that the diaphragm (05) is
placed in the
closed position
, and the
compressor (63) tightens the diaphragm
against the body (01).
6.
Tighten the screws up to the specified
tightening torque.
See the tightening torque
. Apply grease to the screws
before tightening see chapter 6
Maintenance.
The following tools are required to disassemble the valve.
•
Allen key 3mm for size nº1
•
Allen key 5mm for size nº2
•
Allen key 6mm for size nº3
•
Allen key 10mm for size nº4
10
.30
0.
32.
00
08