BER | 3-phase / 50Hz

Self aspirating jet aerators comprised of a submersible pump and venturi jet based diffusers. Single direction aeration agitating and aerating wider areas. Guide rail and mobile installation available.

Technical Data

  • Motor output kW: 0,75 - 5,5
  • Phases: 3
  • Pressure resistance m: 4,5 - 6
Performance curve
Kurve_U.jpg
Specifications

Model Colour code curve Phases Motor output kW Pressure resistance m Starting method PH value
free standing with guide rail fitting
8-BER TOS-8BER 3 0,75 4 direct 5.0-9.0
15-BER TOS-15BER 3 1,5 4 direct 5.0-9.0
22-BER TOS-22BER 3 2,2 4,5 direct 5.0-9.0
37-BER TOS-37BER 3 3,7 5 direct 5.0-9.0
55-BER TOS-55BER 3 5,5 6 direct 5.0-9.0

Phases 3
Motor output kW 0,75
Pressure resistance m 4
Starting method direct
PH value 5.0-9.0

Phases 3
Motor output kW 1,5
Pressure resistance m 4
Starting method direct
PH value 5.0-9.0

Phases 3
Motor output kW 2,2
Pressure resistance m 4,5
Starting method direct
PH value 5.0-9.0

Phases 3
Motor output kW 3,7
Pressure resistance m 5
Starting method direct
PH value 5.0-9.0

Phases 3
Motor output kW 5,5
Pressure resistance m 6
Starting method direct
PH value 5.0-9.0
General
ø Air inlet 25mm, 32mm, 50mm
Air pipe connection Inside thread, flange
Pump
Components
Impeller Non-clog impeller
Shaft Seal Double mechanical seal
Bearings Shielded ball bearings
Material
Impeller Grey iron casting EN-GJL-200
Casing Grey iron casting EN-GJL-200
Suction Plate Grey iron casting EN-GJL-200
Diffuser Construction steel DIN1.0040 nylon coated
Shaft Seal Silicon carbide in oil bath
Pumping Fluid
Temperature 0-40°C
Type of Fluid Municipal sewage, sewage of food industry
Motor
Lubrication Turbine oil (ISO VG32)
Motor Protector (built-in) Circle thermal cut-out
Type, Poles Induction motor, 2 poles, IP68, Induction motor, 4 poles, IP68
Insulation Insulation class E, Insulation class F
Phase / Voltage 3-phase / 400V / 50Hz / d.o.l.
Material
Casing Grey iron casting EN-GJL-150
Shaft Stainless steel EN-X6Cr13, Stainless steel EN-X30Cr13
Cable Rubber, NSSHÖU
Dimensions in mm:
W1: lowest running water level
  • 8-BER
  • 15-BER
  • 22-BER
  • 37-BER
  • 55-BER
ModelAA1A2DD1D2HH1H2
8-BER674377297194150180464195150
15-BER895537358222150180562224159
22-BER1158687471317220260679312232
37-BER1158687471317220260753312232
55-BER1415861554391220260942341256
Dimensions - guide rail fitting type in mm:
  • 8-BER
  • 15-BER
  • 22-BER
  • 37-BER
  • 55-BER
W1: lowest running water level
ModelA1A2A3A6D1D2HM1M2
8-BER288972382899797514500400
15-BER---------
22-BER462154367546150167768700450
37-BER462154367546150167768700450
55-BER5171944227111882031006750500

The BER-series is a submersible self-aspirating jet aerators combined a submersible pump with a venturi-jet based diffuser. The liquid flow generated by the submerged pump causes negative pressure to form around the nozzle, whereby drawing in air from above the water's surface. With this jet injector mechanism, the aspirated air mixes with water and is ejected through the diffuser, simultaneously agitating and aerating the ponded water. The mixed air-water is ejected powerfully in one direction, which effectively agitates the water across a wide area.