GEA VARIVENT Vacuum Valve V, Руководство по эксплуатации

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Safety
Residual Risk
Residual Dangers
Dangerous situations can be avoided by safety-conscious and proactive behaviour of
the staff and by wearing personal protective equipment.
Residual dangers on the valve and measures
Danger Cause Measure
Danger to life Inadvertent switch-on of the valve Effectively disconnect all components, effectively prevent
switch-on.
Electric power Observe the following safety rules:
1 Isolate from the power supply.
2 Take appropriate measures to prevent switch on.
3 Test absence of voltage.
4 Earthing and short-circuiting.
5 Cover or safeguard any adjacent live parts.
Danger of injury Danger presented by moving or
sharp-edged parts The operator must exercise caution and prudence.
For all work:
• Wear suitable work clothing.
• Never operate the machine if the cover panels are not
correctly fitted.
• Never open the cover panels during the operation.
• Never reach into openings.
As a precautionary measure, wear personal protective
equipment in the vicinity of the valve:
• Protective gloves
• Safety shoes
Cleaning agents can spray out
during cleaning by lifting as a
result of excess pressure in the
container to be cleaned.
If the container to be cleaned is under excess pressure, the
pressure is released into the atmosphere during lifting. If
this happens during cleaning, when cleaning solution is
continuously sprayed into the valve housing, the air flowing
out carries the cleaning solution along. This liquid can spray
out of the collecting pan for the vacuum pan. Depending on
the level of the excess pressure, a considerable amount of
cleaning solution can emerge. These effects are physical
and cannot be avoided.
Observe the following points:
• Use the lifting function only when the container is not
under pressure.
• Lift the pressure relief valve disk before lifting the
vacuum valve disk, in order to reduce spraying if a
residual overpressure exists.
• Use the lifting function only when the collecting pan for
the vacuum valve is empty.
If this is not possible due to process-related reasons, the
following step could reduce the amount of cleaning fluid
spraying out. Validation must be carried for each individual
application to determine whether the remaining amount of
cleaning liquid is sufficient to clean the valve seat.
•
Stop the supply pump before lifting the valve disks.
Environmental
damage Operating materials with proper-
ties which are harmful to the envi-
ronment For all work:
• Collect lubricants in suitable containers.
• Dispose of lubricants in accordance with the pertinent
regulations.