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PU | 1-phase / 3-phase / 50Hz

Freistromlaufrad

PU multi-purpose pumps have adopted stainless steel where metal must be used, while other strategic components are molded in or armoured with high tech resins. Durable, stable in operation and compact, PU pumps are ideal for sewage disposal and many other demanding underwater pumping jobs.

Performance curves

Kurve_U.jpg

Specifications

 ModelColour code curveBore mmPower output kWPhasesr.p.m.Head max. mCapacity max. l/minStarting methodDry weight kg *Impeller passage mm
free standingwith guide rail fittingfree standingwith guide rail fitting
manual 50PU2.25 optional 50 0,25 3 2850 6,6 210 direct 6,1 - 35
50PU2.4 optional 50 0,4 3 2850 9,6 270 direct 7,0 - 35
50PU2.4S optional   50 0,4 1 2850 9,6 270 condensor 7,1 - 35
50PU2.75 optional 50 0,75 3 2850 12,5 360 direct 8,3 - 35
50PU2.75S optional   50 0,75 1 2850 12,5 360 condensor 8,9 - 35
80PU21.5 optional 80 1,5 3 2850 16,0 800 direct 15,8 - 46
autom. 50PUA2.4 optional   50 0,4 3 2850 9,6 270 direct 7,5 - 35
50PUA2.4S optional   50 0,4 1 2850 9,6 270 condensor 7,7 - 35
50PUA2.75 optional   50 0,75 3 2850 12,5 360 direct 8,9 - 35
50PUA2.75S optional   50 0,75 1 2850 12,5 360 condensor 9,5 - 35

Material

ø Discharge bore mm 50mm, 80mm
Pumping Fluid Temperature 0-40°C
Type of Fluid Municipal sewage, water with solids
Pump Compo- nents Impeller Vortex impeller
Shaft Seal Double mechanical seal
Bearings Shielded ball bearings
Material Impeller Glass fibre reinforced plastic
Upper casing Glass fibre reinforced plastic
Lower casing Plastic
Shaft Seal Silicon carbide in oil bath
Motor Type, Poles Induction motor, 2 poles, IP68
Lubrication Turbine oil (ISO VG32)
Insulation Insulation class E
Motor Protector (built-in) Circle thermal cut-out
Phase / Voltage 3-phase / 400V / 50Hz / d.o.l., Single phase 230V / 50Hz
Material Casing Stainless steel EN-X5CrNi18-10
Shaft Stainless steel EN-X5CrNi18-10
Cable Rubber, 10m H07RN-F
Discharge Connection Inside thread, flange
Optional Accessories Guide rail fitting "TOK" for small pumps

Dimensions in mm:

  • 50PU2.25
  • 50PU2.4S
  • 50PU2.4
  • 50PU2.75
  • 80PU21.5
  • 50PU2.75S
  • 50PUA2.4S
  • 50PUA2.4
  • 50PUA2.75
  • 50PUA2.75S

W1: lowest running water level
ModelAA1A2BDD1D2HW1W2
50PU2.25236115811021627686349110310
50PU2.4236115811021627686360110325
50PU2.4S236115811021627686360110325
50PU2.75236115811021627686374110335
50PU2.75S236115811021627686374110335
80PU21.52951459913019692104475150427
50PUA2.4236115811021737697374--
50PUA2.4S236115811021737697374--
50PUA2.75236115811021737697388--
50PUA2.75S236115811021737697388--


Please mind: discharge bend, duck foot bend and stand set are accessories and must be ordered separately

Application reports