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EB 8257 EN
25
Measures for preparation
4.4 Preparation for installation
Proceed as follows:
Î
Flush the pipelines.
The plant operator is responsible for clean
-
ing the pipelines in the plant.
Î
Pickle and blow through the steam pipe.
Î
Check the valve to make sure it is clean.
Î
Check the valve for damage.
Î
Check to make sure that the type desig
-
nation, valve size, material, pressure rat-
ing, and temperature range of the valve
match the plant conditions (size and
pressure rating of the pipeline, medium
temperature etc.).
Î
Make sure that the pipelines are dry.
Moisture will damage the inside of the
valve.
Î
Check any mounted pressure gauges to
make sure they function.
Î
When the valve and actuator are al
-
ready assembled, check the tightening
torques of the bolted joints (
u
Components may loosen during trans
-
port.
Note
Содержание 3286
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