Samson BR 14t - LTR 43, Монтаж и эксплуатация

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6-1
EB | 14t_EN
June 2023 edition
Subject to technical changes
Start-up
6 Start-up
The work described in this chapter may only be performed by
specialist personnel quali
fi ed to perform the corresponding task.
Danger of burning due to hot or cold components and pipe!
The valve and pipe can become very hot or very cold during op-
eration 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
valve.
Danger of crushing due to moving parts
The valve 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
butter
fl y valve and the actuator.
Ö
Before working on the valve, 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 PFEIFFER.
Danger of injury due to escaping exhaust air!
During operation, when regulating or when opening and closing
the butter
fl 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 valve may only be commissioned after the operator has
ensured that
Ö
the valve has been inspected to ensure its proper condition in
relation to installation and safe function, see Chapter “5
Installation”.
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 valve
functions correctly according to the control commands.
Ö
for electrical components, the IP and Ex markings/data are
correct.
WARNING
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 < TS max.).
Furthermore, the pressure-temperature assignment must be
observed according to EN 12516-1, EN 1092-1 and
ASME B16.34.
The valve 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 valve.
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 quali
fi 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 valve must be continuously
observed and checked for possible leakage.
During normal operation, the valve may only be operated if all
valve components are functional and not deactivated or changed
with regard to its intended effect.
Operation of the valve 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.