Installation; Installation, Hydraulic - ProMinent Makro TZ Operating Instructions Manual

Installation

7 Installation

7.1 Installation, hydraulic

30
CAUTION!
Danger of injury to personnel and material damage
Disregarding the technical data during installation can
lead to personal injuries or damage to property.
– Observe the technical data - refer to the "Technical
Data" chapter and, where applicable, the operating
instructions for the accessories.
WARNING!
ATEX pumps in areas at risk from explosion
– Metering pumps must have an appropriate safety
relief valve on the discharge side (to protect against
excessive heating due to overloading or impact
sparks caused by the breakage of power end parts).
– Do not allow it to run dry. Take appropriate protec‐
tive measures.
– Provide a flow control with plunger metering pumps
to ensure that the maximum media temperature is
not exceeded.
– Use a suitable medium (lubricating) to rinse the
plunger packing through the flushing collar with feed
chemicals that have poor lubricating properties with
regard to the plunger packing.
WARNING!
Warning of feed chemical reactions to water
Feed chemicals that should not come into contact with
water may react to residual water in the liquid end that
may originate from works testing.
– Blow the liquid end dry with compressed air through
the suction connector.
– Then flush the liquid end with a suitable medium
through the suction connector.
WARNING!
The following measures are an advantage when working
with highly aggressive or hazardous feed chemicals:
– Install a bleed valve with recirculation in the storage
tank.
– Install an additional shut-off valve on the discharge
or suction ends.
CAUTION!
Warning of backflow
A back pressure valve or a spring-loaded injection valve
do not represent absolutely leak-tight closing elements.
– For this purpose use a shut-off valve, a solenoid
valve or a vacuum breaker.