5 Installation at Site
22 of 68
Multitec A SX
5.4 Piping
5.4.1 Connecting the piping
DANGER
Impermissible loads acting on the pump nozzles
Danger to life from leakage of hot, toxic, corrosive or flammable fluids!
▷
Do not use the pump as an anchorage point for the piping.
▷
Anchor the pipelines in close proximity to the pump and connect them without
transmitting any stresses or strains.
▷
Observe the permissible forces and moments at the pump nozzles.
▷
Take appropriate measures to compensate thermal expansion of the piping.
CAUTION
Incorrect earthing during welding work at the piping
Destruction of rolling element bearings (pitting effect)!
▷
Never earth the electric welding equipment on the pump or baseplate.
▷
Prevent current flowing through the rolling element bearings.
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.
ü
The
suction lift line/suction head line
has been laid with a rising/downward slope
towards the pump.
ü
The nominal diameters of the pipelines are at least equal to the nominal
diameters of the pump nozzles.
ü
To
prevent excessive pressure losses, adapters to larger diameters have a diffuser
angle of approx. 8°.
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.
Multitec A: Do not close the hole provided in the plain bearing cover.
CAUTION
Welding beads, scale and other impurities in the piping
Damage to the pump!
▷
Remove any impurities from the piping.
▷
If necessary, install a filter.
▷
Observe the information in
(
ð
Section 7.2.2.3, Page 41)
.
Summary of Contents for Multitec A SX
Page 1: ...Sprinkler Pump Multitec A SX Installation Operating Manual ...
Page 67: ......