8.1 Installing hose lines
8.1.1
Installation with metering pumps without degassing
CAUTION!
Warning of feed chemical spraying around
The lines can become loose or rupture if they are
not installed correctly.
–
Route all hose lines so they are free from
mechanical stresses and kinks.
– Only use original hoses with the specified hose
dimensions and wall thicknesses.
– Only use clamp rings and hose sleeves
intended for the respective hose diameter to
ensure the long service life of the connections.
CAUTION!
Danger from rupturing hydraulic components
Hydraulic components can rupture if the maximum
permissible operating pressure of the hydraulic
parts is exceeded.
–
Adhere to the maximum permissible operating
pressure of all hydraulic components - please
refer to the product-specific operating instruc‐
tions and system documentation.
– Never allow the metering pump to run against
a closed shut-off device.
– Install a relief valve.
CAUTION!
Hazardous feed chemicals can escape
Hazardous feed chemical can leak out when using
conventional degassing procedures with metering
pumps.
–
Install a degassing line with a return line into
the supply tank.
CAUTION!
Hazardous feed chemicals can escape
Feed chemicals can escape outside in the event
that the metering pump is removed from the instal‐
lation.
–
Install a shut-off valve on the discharge and
suction side of the metering pump.
CAUTION!
Uncontrolled flow of feed chemical
Feed chemical may press through a stopped
metering pump if there is back pressure.
– Use an injection valve or a vacuum breaker.
Safety information
Installation, hydraulic
31
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