Samson 45-6, Монтаж и эксплуатация

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5-4 EB 3226 EN
Installation
5.3 Assembly and installation
Tested SAMSON regulators are delivered as
assembled units. Proceed as follows to as-
semble the regulator and before start-up.
Risk of regulator damage due to exces-
sively high or low tightening torques.
Observe the specified torques on tightening
regulator components. Excessively tightened
torques lead to parts wearing out quicker.
Parts that are too loose may cause leakage.
Î
Observe the specified tightening torques
(see 'Tightening torques' in Annex).
Risk of regulator damage due to the use of
unsuitable tools.
Î
Only use tools approved by SAMSON
(see Annex).
Risk of regulator damage due to the use of
unsuitable lubricants.
Î
Only use lubricants approved by
SAMSON (see Annex).
5.3.1 Installing the regulator
The regulator can be installed into a bypass
pipe or a short-circuit pipe (see installation
example in Fig. 5-2).
NOTICE
!
NOTICE
!
NOTICE
!
1. Close the shut-off valves upstream and
downstream of the regulator while the
regulator is being installed.
2. Remove the protective caps from the
valve ports of regulators with flanges be -
fore installation.
3. Lift the regulator to the site of installation.
Observe the flow direction through the
regulator. The arrow on the valve indi-
cates the direction of flow.
4. Make sure that the correct gaskets are
used.
5. Bolt the pipe to the valve free of stress.
5.3.2 Cleaning the pipeline
We recommend additionally flushing the
pipeline without the installed regulator be-
fore start-up.
Î
Observe the mesh size of the upstream
strainer for the maximum particle size.
Use strainers to suit the process medium.
Î
Check the strainer for dirt each time the
pipeline is flushed and clean it, if neces -
sary.
If the regulator malfunctions due to clogging
after flushing the pipeline, proceed as de -
scribed in the 'Troubleshooting' section.