Installing The Regulator - Samson 42-20 Mounting And Operating Instructions

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 actuator and packaging,
if applicable).
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 SAM-
SON (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).
5.3.1

Installing the regulator

The regulator can be installed in a bypass
pipe or a short-circuit pipe (see installation
example in Fig. 5-4).
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 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.
4. Make sure that the correct flange gaskets
are used.
5. Bolt the pipe to the valve free of stress.
6. Mount the actuator.
– Fasten the actuator on the valve by tight-
ening the coupling nut (11), while ob-
serving the alignment of the control line
connections. Observe the specified tight-
EB 3007 EN