Samson 3310, Монтаж и эксплуатация

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EB 8222-1 EN 5-9
Installation
the loading pressure connection to close
the valve.
7. Adjust the stop bolt 1 to the point where
the segmented ball (7) completely closes
the valve and align the markings on the
valve shaft (12) and packing gland (15).
8. Disconnect the supply air from loading
pressure connection.
9. Start to tighten the stop bolt 2 until the
segmented ball (7) of the valve is in the
OPEN position (90° angle of rotation).
10. Lock the position of both stop bolts with
the lock nuts.
5.3.2 Installing the valve into
the pipeline
Direction of flow
Observe the following concerning the direc-
tion of flow:
− Install the valve into the pipeline in such
a way that the bottom half of the seg-
mented ball opens in the direction of the
flow.
This helps to prevent dirt deposits from
accumulating and blocking the valve
when it opens. The direction of medium
flow into the ball also prevents the medi-
um from collecting unnecessarily in the
shaft bearings.
− The standard direction of flow (onto the
convex side of the segmented ball) is in-
dicated by an arrow on the valve (see
the 'Markings on the device' section).
− The direction of flow can be reversed,
e.g. for abrasive media. This direction of
flow causes the pressure of the process
medium to constantly act on the packing.
On tightening the flange bolts, make sure
that an even pressure is exerted on the
gaskets.
Installation
1. Close the shut-off valves in the pipeline
at the inlet and outlet of the plant section
while the valve is being installed.
2. Prepare the relevant section of the pipe-
line for installing the valve.
3. Remove the protective caps from the
valve ports before installing the valve.
4. Lift the valve using suitable lifting equip-
ment to the site of installation (see the
'Shipment and on-site transport' section
> 'Lifting the valve'). Observe the flow
direction through the valve. The arrow on
the valve indicates the direction of flow.
5. Make sure that the correct flange gaskets
are used.
6. Bolt the pipe to the valve free of stress.
Risk of valve malfunction due to incorrect
tightening torques.
The valve's functioning will be impaired if
the bolt joints between the valve and pipe
-
line are too tight.
Î
Observe the specified tightening torques
(
u
AB 0100).
7. Attach a support or suspension on the
valve, if necessary.
NOTICE !