29.06.2016
DOUBLE-SEAT VALVE (Type 491)
BA 049100.06 EN 9 / 34
Malfunction due to incorrect handling
Explanations Measures
The valve should be made inoperative if malfunctions occur. Disconnect the electrical connection to the
valve.
Solve faults immediately.
The valve should be installed in such a way that the complete
valve inset can be removed.
Make sure that there is sufficient space
above the drive.
The valve should be installed so that a complete draining by
gravity of the product or leakage chamber is ensured.
Install the valve in a vertical position in
horizontal piping.
The valve’s switching function is defective or takes place jerkily.
The valve has not been properly installed during assembly.
Install the valve housing free from tension
in the piping system.
Residues from welding or assembly can disturb the switching
function.
Remove welding residues and other
contaminants from the valve housing.
The function can be put out of action or considerably disturbed if
faulty or non-specified parts are assembled or exchanged on the
valve.
This can also lead to injuries to the operating and maintenance
personnel.
Only use accepted parts from the
manufacturer.
If the valve is not checked or maintained at regular intervals, this
can lead to malfunction or major disturbance.
Check the valve within the framework of
the fixed operating maintenance cycles.
When in strong demand the seals in the
product chamber should be changed more
regularly.
Malfunction through improper use
The valve’s operating area is envisaged for certain operating states
(pressure, temperature, media).
The valve’s function can be disturbed greatly by different
operating conditions.
Make sure of proper utilization.
Transport
To Next Page
Loading...
