Samson EB 01a, Монтаж и эксплуатация

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8-2
EB 01a_EN
March 2023 edition
Subject to technical changes
Malfunction
Type of fault Possible cause Measure
Leaks in the stem sealing Medium escapes from the
stuf
fi ng box
If the valve on the stuf fi ng box is leaky, the bellows is defective.
Danger of injury due to hazardous media!
It must be kept in mind that the media is usually hazardous.
Ö
All necessary safety measures must be taken to prevent possible
accidents.
Tighten the sealed stuf fi ng box.
Danger due to missing primary sealing!
The valve is tight again. Sealing by the stuf fi ng box should only take
place for a short period, as there is no primary sealing.
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Repair the valve as quickly as possible.
Remove the valve, see chapter “1 Safety instructions and safety
measures”.
Disassemble the valve and replace the bellows. Check the bonnet
fl ange for corrosion caused by the medium and replace if necessary.
Request spare parts from PFEIFFER, see Chapter “15.2 Spare parts”.
For the required repair instructions, see Chapter “12 Repairs”.
Malfunction. The actuator unit or control
does not react Check the actuator unit and control command.
The actuator and control are
OK Remove and inspect the valve, see chapter “1 Safety instructions and
safety measures”.
The valve is damaged Repairs are necessary.
Remove the valve, see chapter “1 Safety instructions and safety
measures”.
Request spare parts from PFEIFFER, see Chapter “15.2 Spare parts”.
For the required repair instructions, see Chapter “12 Repairs”.
Problems in the actuator unit. The pneumatic actuator must
be removed Disconnect the connection to the control pressure.
Remove the actuator from the valve, observe the “Safety instructions
and safety measures”, see the included actuator unit manuals.
DANGER
WARNING
− In the case of faults that are not listed in the table, contact the
After Sales Service at PFEIFFER.
− Spare parts must be ordered indicating all the data according
to the valve marking. Only original parts from PFEIFFER
Chemie-Armaturenbau GmbH may be installed.
− If it is determined after removal that the PFA lining is not
suf
fi ciently resistant for the medium, parts must be selected
made of a suitable material.
Info