Technical Specifications

Submersible pump:

• Electrical connection:HS-E...: 1~230 V, 50/60 Hz (connection via frequency converter to single-phase mains)HS-I...: 1~230 V, 50/60 Hz (direct connection to single-phase mains)
• Operating mode in immersed state: S1
• Temperature of pumped liquid: 3-35 °C
• Minimum motor flow speed: 0.08 m/s
• Max. sand content: 50 g/m3
• Max. number of starts: 30 /h
• Max. immersion depth: 150 m
• Degree of protection: IP 58
• Pressure connection: Rp 1/Rp !¼

Frequency converter for "HS-E..." version:

• Mains connection: 1~230 V, 50/60 Hz
• Output: 3~230 V/max. 140 Hz/max. 2.2 kW
• Temperature of the pumped liquid: 3-50 °C
• Max. pressure: 8 bar
• Protection class: IP X5
• Pressure connection: G 1¼
• Materials:
• Casing of the hydraulic system: stainless steel 1.4301
• Impellers: polycarbonate
• Impellers: polycarbonate Hydraulic shaft: stainless steel 1.4104
• Motor housing: stainless steel 1.4301
• Motor shaft: stainless steel 1.4305

Description/construction

Submersible drainage pump for vertical or horizontal installation.

Hydraulics

Multistage submersible multi-stage radial impeller pump in split casing design. With integrated non-return valve. All parts in contact with pumped media are made of corrosion resistant material.

Electric motor

Non-corrosive asynchronous electric motor for connection to the frequency converter included in the delivery (HS-E...) or for direct connection to the electric network (HS-I...). Rewindable oil-filled electric motor with self-lubricating bearings, designed for high speeds up to 8400 rpm.

Frequency Converter (FC)

• External frequency converter or frequency converter integrated into the electric motor to operate the pump at speeds up to 8400 rpm, including the following functions:
• Soft-start
  • Under-voltage, over-voltage and short-circuit protection;
  • Motor and frequency converter overload protection with thermal relay
• Model "HS-E..." with external frequency converter has the following additional equipment features:
  • "CP" regulation function: Constant pressure
  • Prevention of frequent switching cycles (synchronization) by monitoring the tightness;
  • Dry run protection with automatic reset
  • Changing direction of rotation;
  • Adjustment of max. current and set pressure
  • Pressure display.
  • Settings, operating status indications and error messages are indicated by LEDs or on the display.
• The frequency converter must always be installed outside the pumped liquids with flood protection!

Control function "CP": Constant pressure

Through operation with a frequency converter the speed of the unit is automatically adapted to the current water flow rate. In this way, the submersible pump always delivers a constant pressure.

Cooling

The motor is cooled by the fluid being pumped. The motor may only be operated in immersed state. The maximum temperature limits for the pumped liquid and its minimum flow speed must be observed.

For vertical installation a cooling jacket must be provided depending on the diameter of the well. Horizontal installation is always done with a cooling jacket.

The external frequency converter is also cooled by the fluids being pumped. For this purpose, the frequency converter must be installed directly in the pipeline outside the pumped fluids (with flood protection).