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Installation
WARNING
!
Risk of lifting equipment tipping over and
risk of damage to lifting accessories due to
exceeding the rated lifting capacity.
Î Only use approved lifting equipment and
accessories whose minimum lifting ca-
pacity is higher than the weight of the
valve (including control thermostat, if ap-
plicable).
Î Refer to the 'Design and principle of op-
eration' section for the weights.
WARNING
!
Risk of personal injury due to the regulator
tipping.
Î Observe the regulator's center of gravity.
Î Secure the regulator against tipping over
or turning.
NOTICE
!
Risk of regulator damage due to the use of
unsuitable tools.
Î Only use tools approved by SAMSON
(see 'Tools' in Annex).
NOTICE
!
Risk of regulator damage due to the use of
unsuitable lubricants.
Î Only use lubricants approved by
SAMSON (see 'Lubricants' in Annex).
5-6
NOTICE
!
Risk of regulator damage due to exces-
sively high or low tightening torques.
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 'Tightening torques' in Annex).
5.4 Installing the regulator
Note
Do not install the temperature regulator be-
tween a pressure reducing valve and its con-
trol line connection.
5.4.1
Installing the valve
The regulator can be installed into the down-
stream pressure pipe (return flow pipe) or
the upstream pressure pipe (flow pipe) of the
plant. See installation examples in Fig. 5-3.
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 before installing the valve.
3. Lift the valve using suitable lifting equip-
ment to the site of installation. Observe
the flow direction through the valve. The
arrow on the valve indicates the direction
of flow.
EB 2111/2121/2123 EN
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