EB 3135-1 EN
37
Servicing
Before removing the electric actuator from
the valve, disconnect the supply voltage
and protect it against inadvertent reconnec-
tion.
Risk of personal injury due to residual pro-
cess medium in the valve.
While working on the valve, residual process
medium can escape and, depending on its
properties, may lead to personal injury, e.g.
(chemical) burns.
−
If possible, drain the process medium from
all the plant sections affected and the
valve.
−
Wear protective clothing, safety gloves and
eye protection.
Risk of burn injuries due to hot or cold com-
ponents and pipelines.
Depending on the process medium, valve
components and pipelines may get very hot
or cold and cause burn injuries.
−
Allow components and pipelines to cool
down or heat up.
−
Wear protective clothing and safety gloves.
WARNING
!
WARNING
!
WARNING
!
7
Servicing
The regulator does not require any mainte-
nance. Nevertheless, it is subject to natural
wear, particularly at the actuator, seat, plug
and operating diaphragm. Depending on
the operating conditions, check the regulator
at regular intervals to avoid possible mal-
functions. Operators are responsible for
drawing up an inspection and test plan. De-
tails on faults and how to remedy them can
be found in Table 8.
We recommend removing the regulator from
the pipeline before performing any mainte-
nance or service work.
SAMSON's After-sales Service can support
you in drawing up an inspection and test
plan for your plant.
Risk of bursting in pressure equipment.
Valves and pipelines are pressure equip-
ment. Improper opening can lead to device
components bursting.
−
Before starting any work on the device, de-
pressurize all plant sections affected as
well as the valve.
−
Drain the process medium from all the
plant sections affected as well as the valve.
−
If necessary, a suitable overpressure pro-
tection must be installed in the plant sec-
tion.
−
Wear personal protective equipment.
Tip
DANGER
!