1 D 71 en
5
2
TRANSPORT, RECEPTION AND
STORAGE
Check the valve and the associated equipment for any
transport damage.
Before mounting the valve, store it indoors in a suitable
place.
Do not take the valve to the intended location or remove
the flow port protectors until just before the mounting.
The valve is supplied in an open position.
Do not lift the valve or the valve package from the actu-
ator, positioner, limit switch or their pipes.
When lifting the valve, place the lifting ropes around the
valve body. See Figure 5.
3
MOUNTING AND COMMISSIONING
3.1
General
Remove the flow port protectors and check the valve for
dirt that may have entered it during transportation and
storage.
3.2
Mounting the valve in the pipeline
Clean the pipes by flushing or blowing before mounting
the valve. Keep the valve in fully open position during
flushing. Any impurities such as sand or pieces of weld-
ing electrode may damage the seats and tightening
surfaces of the ball.
The functioning of the valve, actuator or the positioner is
not affected by the flow direction or the valve position.
Do not, however, install the valve with the stem pointing
downwards. This may allow impurities at the bottom of
the pipeline to enter the space between the stem and
the body and damage the gland packing.
Sufficient support for the pipeline reduces stress due to
pipeline vibration. Low vibration also ensures reliable
positioner operation.
An unsupported valve is easier to maintain. Neverthe-
less you can support the valve by its body with stand-
ard pipe clamps and supports. Do not fasten the
supports to the flange bolts or the actuator.
3.2.1
Valve insulation
If necessary, the valve may be insulated. Insulation
must not continue above the upper level of the valve
body, see Figure 6.
3.3
Actuator
The closed position of the ball is indicated as follows:
❑
by an indicator on the actuator or
❑
by a groove at the end of the ball stem (parallel to
the flow opening).
If you are not sure about the indicator, check the flow
direction by the groove.
If possible, mount the valve so that it can remain in
place even if the actuator is removed.
Mount the actuator cylinder should be mounted in an
upright position.
The actuator should not touch the pipeline as pipeline
vibration may damage it or affect its performance.
3.4
Commissioning
Before commissioning, check the valve and the pipe-
line for any impurities or foreign objects. Flush the pipe-
line carefully and keep the valve in fully open position
during the flushing.
Check all joints, pipings and cables.
Check the adjustments of the actuator, positioner and
the limit switch. For actuator adjustment, see Section 6.
For other devices, consult their individual manuals.
If necessary, tighten the gland packing.
Fig. 5
Lifting the valve package
CAUTION:
The valve and valve package are heavy. Remem-
ber this when handling them.
NOTE:
Always use the appropriate flange gaskets. Check to
see what gaskets are used elsewhere in the pipeline.
NOTE:
Do not try to correct pipeline misalignments with
flange bolts.
CORRECT
WRONG
Fig. 6
Insulation of the valve
NOTE:
When mounting the actuator, check that the valve
package functions properly. For more information
about the mounting of the actuator, see Section 6 or
the separate actuator instructions.
Insulation limit