Brochure

Chamber stack
Inlet
Motor
Outlet
Figure 1.28: CR-pump.
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1.3.5 The SP pump
The SP pump is a multi-stage submersible pump which is used for raw wa-
ter supply, ground water lowering and pressure boosting. The SP pump can
also be used for pumping corrosive fluids such as sea water. The motor is
mounted under the chamber stack, and the inlet to the pump is placed be-
tween motor and chamber stack. The pump diameter is designed to the size
of a standard borehole. The SP pump is equipped with an integrated non-
return valve to prevent that the pumped fluid flows back when the pump is
stopped. The non-return valve also helps prevent water hammer.
1.3.6 The CR pump
The CR pump is used in washers, cooling and air conditioning systems,
water treatment systems, fire extinction systems, boiler feed systems and
other industrial systems. The CR pump is a vertical inline multistage pump.
This pump type is also able to pump corrosive fluids because the hydraulic
parts are made of stainless steel or titanium.
1.3.7 The MTA pump
The MTA pump is used on the non-filtered side of the machining process
to pump coolant and lubricant containing cuttings, fibers and abrasive
particles. The MTA pump is a dry-runner pump with a long shaft and no
shaft seal. The pump is designed to be mounted vertically in a tank.
The installation length, the part of the pump which is submerged
in the tank, is adjusted to the tank depth so that it is possible to
drain the tank of coolant and lubricant.
Figure 1.29: MTA pump.
Outlet
Outlet channel
Inlet
Pump housing
Mounting flange
1. Introduction to Centrifugal Pumps
Outlet
Chamber stack
Inlet
Motor
Figure 1.27: SP pump.
Non-return valve
Shaft