5 Installation at Site
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UPA / UPA S
3400.86/17-EN
General information on the system design
Well head
▪
Design and dimension the suspension arrangement of the pump set so that all
static and dynamic forces can be absorbed.
▪
Fasten the supporting clamps or supporting flanges at the well head so that they
cannot shift or lift off the well head.
▪
Make sure not to damage existing sealing surfaces.
▪
Position the well head in such a way that the pump set is suspended in a
perfectly vertical position.
Vibrations
▪
System-induced vibrations must not be transmitted to the pump set.
▪
The system must be designed in such a way that vibrations are not amplified.
Abrupt pressure equalisation processes (pressure surges), in particular, present a
hazard for the pump set. Take suitable precautions (e.g. fit expansion joints, air
vessels).
Sand deposits
▪
Do not install the pump set with the suction strainer exactly at the level of the
well screen/filter.
▪
Excessive flow in the area of the well screen/filter entails the risk of large
amounts of entrained sand causing excessive wear in the pump.
Narrowing
▪
Verify the well dimensions.
Installation conditions
Pump sets which are to be installed in a pump sump are always designed with a
suction shroud or cooling shroud.
▪
The pump set must not sit on the base of the well.
▪
The pump set must not touch the walls of the well or tank. Use a centring device.
▪
Prevent adjacent pump sets from influencing each other.
▪
Provide an even approach flow in the suction area and do not obstruct it with
any structural components or installations.
▪
Air intake from an inlet arranged above the fluid level is not permitted.
5.2.2 Checking the installation position
WARNING
Impermissible installation position
Damage to the machine! Damage to the bearings!
▷
For angled installation, always install the pump set with a rising slope towards
the discharge side.
Submersible borehole pumps can be installed in a vertical or, depending on the
number of stages, also in an angled or horizontal position.
1.
Never install horizontally a pump set which has been selected for vertical
installation.
2.
Never install the pump set with the pump at the lowest point.
