Flowserve PLEUGER Bedienungsanleitung PDF herunterladen (Seite 11)

PLEUGER STANDARD USER INSTRUCTIONS ENGLISH 71569293 01-13

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3.3 General data

3.3.1 Normal operating conditions

 Temperature: see data sheet

 Sand content: max. 25 mg/l (0.03 oz/fl.oz)

 Water velocity along motor surface: see data

sheet

 No impurities that could lead to deposits and

blockages within the pump or to deposits on the

motor surface

 No water hammer

 Maximum 3 minutes operation against closed

slide valve

Refer to section 7.1.2., First

switching on.

 Operation within prescribed voltage tolerances

 Permissible operational range: 50 to 120 % of the

best efficiency point (BEP)

 Correctly selected and adjusted motor protection

 Observation of the maximum permissible starting

frequency

If other working conditions are

required please contact Flowserve for advice.

At higher ambient temperatures

and/or lower flow velocities on the external motor

surfaces, or if there is risk of clogging, special

measures for heat dissipation are required. This

must be checked with the manufacturer by indicating

the ambient conditions. In this case the suitability of

the unit for its planned application must be confirmed

by the manufacturer.

3.4 General description

Submersible-motor pumps are subjected to a thorough

inspection before leaving the factory and are supplied

with operating instructions for fitting, starting and care

that conform to general safety regulations.

Standard submersible-motor pumps are used to

transport cold clean water under normal operating

conditions.

The Pleuger submersible-motor pump has been

developed for installation in wells and as a result has a

distinctive slim design. The Pleuger submersible-motor

pump, because of its various features, can also be used

for other applications with different design modifications.

The submersible motor pump consists of a submersible

motor, a submersible pump and usually a check valve.

The complete pump unit is freely suspended on the

rising main which is supported at the wellhead.

Other uses or applications must be agreed by the

manufacturer.

Power cables and, if applicable, signal cables are

fixed to the riser pipes by means of cable clips.

The ideal construction of a water supply system is

shown in figure 3-1. Since this shows a basic

arrangement, the actual layout must be adapted to

local and technical conditions.

The additional listed components are

recommendations for operational safety and the

protection of the pump unit.

Figure 3-1: Water supply system

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