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5.3 Installation
The SAMSON regulators are delivered as
assembled units. The activities listed below
are necessary for installation and before
start-up of the regulator.
NOTICE
!
Risk of regulator damage due to the use of
unsuitable tools.
Î Only use tools approved by SAMSON
(see section 'Tools' in the Appendix).
NOTICE
!
Risk of regulator damage due to the use of
unsuitable lubricants.
Î Only use lubricants approved by
SAMSON (see section 'Lubricants' in the
Appendix).
NOTICE
!
Risk of regulator damage due to over- or
under-torquing.
Observe the specified torques when tighten-
ing regulator components. Excessive tighten-
ing torques lead to parts wearing out more
quickly. Parts that are too loose may cause
leakage.
Î Observe the specified tightening torques
(see section 'Tightening torques' in the
Appendix).
EB 3124 EN
5.3.1 Installing the regulator
The Type 45-1 and Type 45-2 Regulators are
installed in the flow pipe and the Type 45-3
and Type 45-4 Regulators are installed in the
return flow pipe of the plant. See installation
examples in Fig. 5-3.
1. Close the shut-off valves (1, 6) 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. Observe the flow direction through the
valve. The arrow on the valve indicates
the direction of flow.
4. Make sure that the correct flange gaskets
are used.
5. Bolt the regulator to the pipeline free of
stress.
6. Mount the control lines (to be installed on
site) and any needle valves and open
them.
− Mount the control lines (to be installed on
site) on the actuator. Observe the speci-
fied tightening torques (see section
'Tightening torques' in the Appendix).
Installation
5-5
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