AR11970-03 - KSB UPA 250C-120/2a UMA 200D 45/21

Multistage, single-flow submersible motor pump of modular design, constructed from stainless steel for well diameters of 100 mm (4 inches) and larger.
Main applications and function: Submersible motor pump for pumping drinking water; suitable for irrigation and sprinkler systems, industrial applications, pressure-boosting systems, groundwater lowering, domestic water supply, water utility systems, and building services (HVAC/plumbing). Designed for water with minor impurities (up to a maximum continuous operating temperature of 30°C and a permissible sand content of up to 50 g/m³).
Flexible installation in vertical, inclined, or horizontal positions.
All steel components made of corrosion-resistant stainless steel.
Integrated check valve at the pump outlet.
Radial plain bearings lubricated by the pumped medium, with intermediate bearings in each stage.
Pump discharge nozzle with threaded connection (Rp 1 1/4 to Rp 2) or optional flange (DN 40 to DN 50).
NEMA-standard connection design for 4-inch and 6-inch units.
Available with a single-phase AC motor (including a starting device with a thermal overload relay), a three-phase AC motor, or a synchronous motor (IPMSM).
Motor features a self-adjusting axial plain bearing lubricated by the internal filling medium.
Integrated pressure-compensation diaphragm in the motor allows for a maximum immersion depth of up to 350 m.
The complete unit and electrical cabling are approved for use with drinking water.
Optional monitoring, control, and regulation systems available (e.g., UPA Control).
Dry-running protection; supports fully automatic or semi-automatic operation.
Includes automatic switching devices such as the Cervomatic EDP.2 or Controlmatic E.
Optional accessories include mounting brackets, cooling/suction/pressure shrouds, and support components. Mounting clamps
Motor accessories: Electrical connection cable (pre-attached or supplied separately), cable connectors, and clamps.
H = horizontal, V = vertical, or S = inclined installation.

Suitable for installation in narrow deep wells (for vertical, inclined, or horizontal positioning). The pump offers high efficiency, operates quietly, and features a check valve with a non-jamming valve disc. Applications include domestic water supply, general water supply, heat pump systems, irrigation, and groundwater lowering. weniger anzeigen