Etabloc

Summary

Product identification

The KSB Etabloc is a close-coupled centrifugal pump with a shaft seal, available in fixed speed and variable speed versions, and designed for 50 Hz or 60 Hz operation. It is designated for EU, ME, and NA regions.

The product designation follows a detailed code structure, including pump type, size (nominal suction/discharge nozzle diameter, nominal impeller diameter), pump casing material, impeller material, specific design descriptions (e.g., for drinking water, bottle rinser), casing cover connections, shaft seal type, seal code, lubrication type, design, bearing bracket/shaft unit, motor rating, number of motor poles, scope of supply, accessories/automation, and product generation.

Operating limits

• Flow rate Q:
  • 50 Hz: ≤ 660 m³/h
  • 60 Hz: ≤ 740 m³/h
• Head H:
  • 50 Hz: ≤ 160 m
  • 60 Hz: ≤ 148 m
• Fluid temperature T: ≥ -30 °C to ≤ +140 °C
• Operating pressure p: ≤ 16 bar
• Motor rating Pₙ: ≤ 110 kW

Test Pressure and Temperature Limits:

• Material variant GG, GC, CC: Test pressure 21 bar, Fluid temperature -30 to +140 °C
• Material variant GB: Test pressure 21 bar, Fluid temperature -30 to +140 °C
• Material variant SG, SB, SC: Test pressure 25 bar, Fluid temperature -30 to +140 °C
• Material variant BB: Test pressure 15 bar, Fluid temperature -30 to +140 °C

Feed water / Product water

Main applications:

• Handling clean or aggressive fluids not chemically and mechanically aggressive to the pump materials
• Water supply systems
• Cooling circuits
• Swimming pools
• Fire-fighting systems
• General irrigation systems
• Drainage systems
• Heating systems
• Air-conditioning systems
• Spray irrigation systems

Fluids handled:

• Seawater
• Brackish water
• Drinking water
• Hot water
• Service water
• Fire-fighting water
• Brine
• Cleaning agents
• Condensate
• Oils
• Cooling water (with/without antifreeze)
• Slightly contaminated water
• Pure water (not ultra-pure)
• Raw water
• Swimming pool water (fresh water, seawater)
• Dam water
• Partly desalinated water
• Fully desalinated water (as boiler feed water)
• Refrigerants, cooling brines
• Diesel fuel, extra light fuel oil
• Lubricating oil, turbine oil
• Drilling emulsion, grinding emulsion
• Oil-water emulsion
• Beer mash, beer wort

For detailed fluid compatibility, specific temperature ranges, and material variant requirements, refer to the official PDF.

Electrical

Fixed Speed Version Drive (Standard Design):

• Motor: KSB/Innomotics surface-cooled IEC three-phase current squirrel-cage motor
• Efficiency Class: IE2 (size 71), IE3 (up to 55 kW and from 250 kW), IE4 (from 75 kW to 200 kW) to IEC 60034-30
• Rated Voltage (50 Hz):
  • 230 V / 400 V ≤ 2.20 kW
  • 400 V / 690 V ≥ 3.00 kW
• Rated Voltage (60 Hz):
  • • / 460 V ≤ 2.20 kW
  • 460 V / - ≥ 3.00 kW
• Type of Construction: IM V1 ≤ 4.00 kW, IM V15 ≥ 5.50 kW
• Enclosure: IP55
• Duty Type: Continuous duty S1
• Thermal Class: F with temperature sensor (1 PTC thermistor for size 80/90, 3 PTC thermistors from size 100)

Variable Speed Version Drive:

• Motor: KSB SuPremE motor (surface-cooled, IEC-compatible, magnetless synchronous reluctance motor; PumpDrive required)
  • Efficiency Class: IE4 / IE5 to IEC TS 60034-30-2:2016
  • Enclosure: IP55
  • Duty Type: Continuous duty S1
  • Thermal Class: F with temperature sensor, 3 PTC thermistors
  • Rated Power: 0.55 kW to 45 kW
  • Rated Speed: 1500 rpm or 3000 rpm
  • Frequency (PumpDrive input): 50 Hz / 60 Hz
  • Voltage (PumpDrive input): 380 V to 480 V
• PumpDrive 2 / PumpDrive 2 Eco:
  • Self-cooling frequency inverter for continuous variable speed control.
  • Mains Voltage: 3~ 380 V AC -10 % to 480 V AC +10 %
  • Mains Frequency: 50 Hz to 60 Hz ± 2 %
• PumpDrive R:
  • Self-cooling frequency inverter for continuous variable speed control.
  • Mains Voltage: 3~ 380 V AC -10 % to 480 V AC +10 % (extended range on request)
  • Mains Frequency: 50 Hz to 60 Hz ± 2 %
  • Nominal Power: 110 kW (standard) or 1400 kW (on request)
• PumpMeter: Intelligent pressure transmitter with on-site display for measured values and operating data.
• KSB Guard: System for monitoring pump condition via temperature and vibration sensors.

Mechanical / hydraulic

Design:

• Volute casing pump, single-stage, with ratings to EN 733.
• Radially split volute casing, with integrally cast pump feet (not for pump casing material G, motor size ≤ 180).
• Replaceable casing wear rings (optional for pump casing material C).
• Closed radial impeller with multiply curved vanes.

Shaft Seal:

• Single mechanical seals and double mechanical seals to EN 12756.
• Shaft equipped with replaceable shaft sleeve in the shaft seal area.

Materials: The pump components are available in a variety of materials, including:

• Volute casing & Casing cover: Grey cast iron (EN-GJL-250), electrocoated grey cast iron, Bronze (CC480K-GS), Nodular cast iron (EN-GJS-400-15), Stainless steel (1.4408).
• Shaft: Tempered steel (C45+N), Stainless steel (1.4571).
• Impeller: Grey cast iron (EN-GJL-250), Bronze (CC480K-DW), Stainless steel (1.4408).
• Drive lantern: Grey cast iron (EN-GJL-250).
• Gaskets: DPAF, asbestos-free.
• Casing wear ring: Lamellar graphite cast iron (JL), Stainless steel (CrNiMo steel), Bronze (CC495K-GS).
• Shaft sleeve: Stainless steel (CrNiMo steel).
• Studs, Screw plug, Nut, Impeller nut: Steel (8.8, 8), Stainless steel (A4-70/A193 Gr. B8M CL2, A4/AISI 316).

For a comprehensive overview of available materials and material variants for each component, refer to the official PDF.

Technical Data: Detailed technical data for each pump size (e.g., 040-025-160) is provided, including shaft unit, impeller outlet width, free passage, impeller inlet diameter, nominal impeller diameter (maximum and minimum), and speed limits (maximum and minimum). See the official PDF for exact tabulated values.

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Disclaimer: This summary is based on the provided text extract and may not include all figures, footnotes, or the latest revisions from the complete OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror