5 Installation at Site
24 of 64
MK
NOTE
Installing check and shut-off elements in the system is recommended, depending on
the type of plant and pump. However, such elements must not obstruct proper
drainage or hinder disassembly of the pump.
NOTE
If the pump is used for automatic drainage, fit a non-return or check valve.
ü
The nominal diameters of the pipelines are equal to or greater than the nominal
diameters of the pump nozzles.
ü
Adapters to larger nominal diameters are designed with a diffuser angle of
approx. 8° to avoid excessive pressure losses.
ü
A flow velocity of 2-3 m/s is recommended.
ü
The pipelines have been anchored in close proximity to the pump and connected
without transmitting any stresses or strains.
1. Thoroughly clean, flush and blow through all vessels, pipelines and connections
(especially of new installations).
2. Before installing the pump in the piping, remove the flange covers on the
suction and discharge nozzles of the pump.
CAUTION
Welding beads, scale and other impurities in the piping
Damage to the pump!
▷
Free the piping from any impurities.
3. If required, fit a suction strainer upstream of the pump nozzle.
4. Connect the discharge-side pump nozzle with the piping.
CAUTION
Aggressive flushing liquid and pickling agent
Damage to the pump!
▷
Match the cleaning operation mode and duration of flushing and pickling to
the casing materials and seal materials used.
5.6 Permissible forces and moments at the pump nozzles
No piping-induced forces and moments (from warped pipelines or thermal
expansion, for example) must act on the pump.
5.7 Electrical connection
DANGER
Incorrect electrical installation
Explosion hazard!
▷
For electrical installation, also observe the requirements of IEC 60079-14.
▷
Observe the manufacturer's product literature supplied with the motor.
▷
Observe the manufacturer's product literature supplied with the float switch if
float switch control is used.
Содержание MK
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