6-1
EB|LTR|43_EN
May 2023 edition
Subject to technical changes
Start-up
6 Start-up
The work described in this chapter may only be performed by
specialist personnel qualifi ed to perform the corresponding task.
Danger of burning due to hot or cold components and pipe!
The actuator and pipe can become very hot or very cold during
operation and cause burns upon contact.
Ö Let the components and pipes cool down or warm up.
Ö Wear protective garments and protective gloves.
Danger of injury due to pressurised components and escaping
medium!
Ö Pressurised components may not be loosened.
Hearing damage and deafness due to a high sound level!
During operation, medium-related noise emissions may be
generated depending on the plant conditions. In addition, there
may be a short-term high sound pressure level when a pneumatic
actuator or pneumatic attachment is suddenly ventilated without
noise-reducing elements. Both can damage hearing.
Ö Wear hearing protection when working in the vicinity of the
actuator.
Danger of crushing due to moving parts
The actuator contains moving parts (e.g. shaft and wedge-lock-
washer) that can lead to crushing if reaching into it.
Ö During operation, do not reach into the bracket between the
butterfl y valve and the actuator.
Ö Before working on the actuator, interrupt and lock the
pneumatic energy and the control signal.
Ö Do not allow the jamming of objects in the bracket to hinder
the rotation of the shaft.
Ö In the case of a blocked shaft, contact SAMSON LEUSCH
through the nearest SAMSON offi ce.
Danger of injury due to escaping exhaust air!
During operation, when regulating or when opening and closing
the butterfl y valve, exhaust air can escape, for example from the
actuator.
Ö Wear eye protection when working in the vicinity of the
actuator.
Commissioning/recommissioning
The actuator may only be commissioned after the operator has
ensured that
Ö the actuator has been inspected to ensure its proper condition
in relation to installation and safe function, see Chapter “5
Assembly”.
Ö the parts in contact with the media are suitable for the
intended use, see chapter “1 Safety instructions and safety
measures“.
Ö The actuators and accessories (if installed) are connected
according to manufacturer instructions and the actuator
functions correctly according to the control commands.
WARNING
Ö for electrical components, the IP and Ex markings/data are
correct.
Ö the limit values indicated on the type plate, such as the max.
permissible pressure PS of the valve, minimum/maximum
temperature TS, see Chapter “2 Markings on the device”, are
not exceeded due to the operating conditions (P<PS, TS
min. <T<TSmax.).
Furthermore, the pressure-temperature assignment must be
observed according to EN12516-1, EN1092-1 and
ASMEB16.34.
The actuator must be operated by expert and instructed
personnel. Furthermore, the operator must ensure that employees
and third parties are not endangered. The nationally applicable
regulations of the country of destination must be observed when
operating the actuator.
Changes to the factory settings for the actuator (e.g. end stops)
and accessories (e.g. fi lter regulator, booster, controller etc.) are
not permissible and may be made on an individual basis only
upon approval of the manufacturer by qualifi ed and expert
personnel.
The system must be started-up and shut-down so that the
temperature increase/decrease or sudden pressure increases do
not result in impermissible increases in voltage.
During start-up operation, the actuator must be continuously
observed and checked for possible leakage.
During normal operation, the actuator may only be operated if
all actuator components are functional and not deactivated or
changed with regard to its intended effect.
Operation of the actuator in a continuous throttle position (no
opening angle) can lead to increased wear of the sealing
elements (seat/seal ring) and require more frequent maintenance
intervals.
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