4 Description of the Pump (Set)
16 of 44
UPAchrom
4.6 Configuration and function
Fig. 2:
Sectional drawing, example of an UPAchrom
Design
Pump and motor are connected by a rigid coupling. The stage casings are supported
by a pump shroud, by straps or studs. A suction strainer at the suction casing protects
the pump from coarse particles in the fluid. The pipe is connected via a lift check
valve or connection branch, with either internal thread or flanged end.
Function
The fluid flows along the motor and enters the suction casing (2) through the suction
strainer (1). It is accelerated outward by the suction impeller (3). In the flow passage
of the stage casing (4) the kinetic energy of the fluid is converted into pressure
energy, and the fluid is routed to the next impeller (5). This process is repeated in all
stages until the fluid has passed the last impeller (5). It is then guided through the
integrated lift check valve (6) to the connection branch (7), where it leaves the pump.
The integrated lift check valve prevents uncontrolled backflow of the fluid.
4.7 Scope of supply
Depending on the model, the following items are included in the scope of supply:
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Pump set with motor lead
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Extension cable
optional: connected or supplied but not fitted
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Back-up name plate
Optional accessories:
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Cable connector
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Cable clips
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Cooling shroud
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Pedestals
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Electrical protection equipment
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Automatic control units
