Etachrom L

Summary

Product identification

The KSB Etachrom L is a range of standardised, close-coupled pumps designed to EN 733. These pumps are available in both fixed-speed and variable-speed versions, operating at 50 Hz or 60 Hz.

Main applications include:

• Cleaning systems (bottle rinsing, crate washing)
• Water treatment systems
• Water supply systems
• Fire-fighting systems
• Spray irrigation systems
• General irrigation systems
• Drainage systems
• Hot-water heating systems
• Air-conditioning systems
• Industrial washing machines
• General industry
• Disposal of paint sludge
• Surface treatment systems

Operating limits

• Flow rate Q:
  • 50 Hz: ≤ 260 m³/h (≤ 72.2 l/s)
  • 60 Hz: ≤ 210 m³/h (≤ 58.3 l/s)
• Head H:
  • 50 Hz: ≤ 105 m
  • 60 Hz: ≤ 104 m
• Fluid temperature T: ≥ -30 °C to ≤ +110 °C
• Operating pressure p: ≤ 12 bar (The sum of inlet pressure and shut-off head must not exceed this value.)
• Test pressure: ≤ 16 bar

Feed water / Product water

The Etachrom L pumps are suitable for handling a wide range of fluids, including:

• Service water
• Drinking water (approved to ACS, KSB standard, UBA, WRAS; t ≤ 60 °C, mechanical seal suitable for t ≤ 110 °C)
• Hot water
• Cooling water (without antifreeze: t ≤ 90 °C, mechanical seal suitable for t ≤ 110 °C; with antifreeze pH ≥ 7.5: t ≤ 110 °C)
• Swimming pool water (0.4 to 1.4 mg/l free chlorine, combined chlorine ≤ 0.6 mg/l, pH 6.9 to 7.7, water hardness 10 to 30 °dH, salt content ≤ 7 g/l; t ≤ 60 °C, mechanical seal suitable for t ≤ 110 °C)
• Process water
• Fire-fighting water (t ≤ 25 °C, mechanical seal suitable for t ≤ 110 °C; chloride content ≤ 300 mg/l)
• Condensate (conductivity at 25 °C: < 250 µS/cm, SiO₂ silicate content ≤ 10 mg/l; t ≤ 110 °C)
• Oil (e.g., diesel oil, fuel oil light, hydraulic oil, kerosene, linseed oil, corn oil, mineral oil, peanut oil, rapeseed oil, lubricating oil, cutting oil, silicone oil, soy-bean oil, edible oil, turbine oil)
• Alkaline cleaning agents
• Alkaline degreasing solution (≤ 10% NaOH, ≤ 80 °C)
• Alcohol (ethanol, methanol, propanol, butanol)
• Ammonia water (ammonia solution)
• Ammonium bicarbonate (≤ 10%, ≤ 40 °C)
• Cider
• Ethylene glycol (antifreeze agent with inhibitors, > 20% to 50%)
• Petrol
• Beer mash, beer wort, spirits
• Butanoic acid (100%, ≤ 30 °C)
• Calcium acetate (10%)
• Calcium nitrate (≤ 10%, ≤ 30 °C)
• Cleaning in place (CIP) without further specifications
• Deionised water (fully desalinated) (conductivity at 25 °C: < 250 µS/cm, SiO₂ silicate content ≤ 10 mg/l; ≤ 110 °C)
• Distilled water (≤ 60 °C)
• Decarbonised water (chloride content ≤ 300 mg/l; ≤ 60 °C)
• Vinegar (= 5% acetic acid)
• Condenser water (sugar production)
• Lye for bottle rinsers (≤ 10%, ≤ 80 °C)
• Tannic acid (≤ 50%)
• Beverages containing carbon dioxide
• Glycerine (≤ 90%)
• Heating water (conductivity at 25 °C: 100 to 800 µS/cm; ≤ 110 °C)
• Potassium hydroxide (≤ 10%, ≤ 80 °C)
• Potassium carbonate (≤ 10%, ≤ 80 °C)
• Aluminium potassium sulphate (≤ 3%, ≤ 20 °C)
• Potassium sulphate (≤ 3%)
• Cooling lubricant (Cimcool) (≤ 60 °C)
• Copper sulphate (≤ 5%, room temperature)
• Slightly contaminated water (≤ 60 °C, mechanical seal suitable for t ≤ 110 °C)
• Maleic acid (≤ 10%)
• Lactic acid (≤ 50%)
• Sodium hydrogen carbonate (≤ 6%, ≤ 20 °C)
• Sodium hydroxide (caustic soda) (≤ 10%, ≤ 80 °C; ≤ 20%, ≤ 60 °C)
• Sodium carbonate (≤ 6%, ≤ 60 °C)
• Sodium nitrate (≤ 10%, ≤ 90 °C)
• Sodium sulphate (≤ 5%, ≤ 60 °C)
• Paraffin
• Vegetable oil, pure (≤ 90 °C)
• Phosphoric acid (≤ 5%, ≤ 40 °C; ≤ 10%, ≤ 40 °C)
• Raw water (≤ 60 °C, mechanical seal suitable for t ≤ 110 °C)
• Sulphuric acid (≤ 5%, 20 °C; ≤ 2.5%, ≤ 50 °C)
• Sulphurous acid (≤ 10%, 25 °C)
• Surface water (≤ 60 °C, mechanical seal suitable for t ≤ 110 °C)
• Partly desalinated water (≤ 110 °C)
• Water / bathing water (fresh water) (≤ 60 °C)
• Water, desalinated (conductivity > 2 µS/cm < 10 µS/cm, SiO₂ < 10 mg/l, solids max. 5 mg/l)
• Water/oil emulsion (95%/5%, ≤ 60 °C)
• Tartaric acid (≤ 50%)
• Citric acid (≤ 50%, room temperature)
• Sugar juice (sugar production) (20%, ≤ 100 °C)

Electrical

Fixed Speed Version Drive (Standard Design)

• Motor: KSB/Siemens surface-cooled IEC frame three-phase squirrel-cage motor
• Efficiency Class: IE2 (size 71/80) / IE3 (from size 90) to IEC 60034-30
• Rated Voltage (50 Hz):
  • 230 V / 400 V for ≤ 2.20 kW
  • 400 V / 690 V for ≥ 3.00 kW
• Rated Voltage (60 Hz):
  • • / 460 V for ≤ 2.20 kW
  • 460 V / - for ≥ 3.00 kW
• Type of Construction: IM B3
• 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)

Fixed Speed Version Drive (Explosion-proof Design)

• Motor: KSB surface-cooled IEC three-phase current squirrel-cage motor
• Efficiency Class: IE2 / IE3 to IEC 60034-30
• Rated Voltage (50 Hz):
  • 230 V / 400 V for ≤ 2.50 kW
  • 400 V / 690 V for ≥ 3.30 kW
• Rated Voltage (60 Hz):
  • • / 460 V for ≤ 2.50 kW
  • 460 V / - for ≥ 3.30 kW
• Type of Protection: EEx eb II
• Temperature Class: T3

Variable Speed Version Drive (KSB SuPremE Motor)

• Motor Type: Surface-cooled KSB SuPremE motor, IEC-compatible, magnetless synchronous reluctance motor (PumpDrive required). Motor sizes 0.55 kW / 0.75 kW with 1500 rpm are designed with permanent magnets.
• 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
• Shaft Centreline Height: 71 to 225 mm
• 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 (Frequency Inverter)

• Mains Voltage: 3~ 380 V AC -10 % to 480 V AC +10 %
• Mains Frequency: 50 Hz to 60 Hz ± 2 %

PumpDrive R (Frequency Inverter)

• 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)

Mechanical / hydraulic

Design Details

• Pump Type: Circular casing pumps
• Maintenance: Back pull-out design for easy dismantling without removing the pump casing from piping.
• Flanges: To EN 1092-1
• Installation: Horizontal
• Stages: Single-stage
• Dimensions & Ratings: To EN 733
• Connection: Pump and motor connected by shaft coupling
• Pump Casing: Circular casing with welded-on or bolted-on pump feet, replaceable casing wear rings.
• Impeller Type: Closed radial impeller with multiply curved vanes.

Materials (Fluid temperature range: -30 to +110 °C for all listed parts)

• Pump casing: CrNiMo steel 1.4571
• Intermediate piece: Grey cast iron EN-GJL-250 / cataphoresis
• Discharge cover: CrNiMo steel 1.4571
• Foot: S235 JR
• Shaft: CrNiMo steel 1.4571
• Impeller: CrNiMo steel 1.4571, CrNi steel 1.4308, CrNiMo steel 1.4408
• Bearing bracket: Grey cast iron EN-GJL-250 / A 48 Cl. 35B, Grey cast iron EN-GJL-250 / cataphoresis
• O-ring: EPDM 70/80, ENM-Therban, FKM80
• Casing wear ring: CrNiMo steel 1.4571
• Shaft sleeve: CrNiMo steel 1.4571
• Hexagon head bolt: Steel 8.8 A2A
• Screw plug: CrNiMo steel A4
• Nut: CrNiMo steel A4

Coating and Preservation

• Pump Casing: Without coating
• Drive Lantern, Intermediate Piece: Cataphoretic coating
• Primer (Type A1): Hydro-dip primer for steel and cast components, water-thinned, dry film thickness: 40-50 µm.
• Top Coat (Type A1): Quick drying, water-thinned paint (acrylate alkyd combination) with anti-corrosive properties and lead-free pigmentation. Suitable for T up to 140 °C, dry film thickness: 60 µm.

Shaft Seal

• Single mechanical seal to EN 12756.
• Shaft is fitted with a replaceable shaft sleeve in the shaft seal area for sizes 080-065-250, 100-080-200, 100-080-250.
• Mechanical Seal Sizes and Dimensions:
  • KU022SO: d1 22 mm, l1 37.5 mm
  • KU028SO: d1 28 mm, l1 42.5 mm
  • NU038SO: d1 38 mm, l1 55.0 mm
• Mechanical Seal Materials: Various combinations of primary ring, mating ring, secondary seal, spring, and other parts are available, including Ceramics, Carbon (resin-impregnated), EPDM, EPDM (FDA-approved), CrNiMo steel, FKM (double PTFE-coated), Silicon carbide, Silicon carbide with carbon, Silicon carbide (porous), Tungsten carbide, HNBR (e.g., Therban), Viton. See the official PDF for exact tabulated values for specific design codes.

Bearings

• Grease-packed radial ball bearings to DIN 625. See the official PDF for exact tabulated bearing codes per pump size and impeller diameter.

Technical Data

• Impeller Details: Closed radial impellers with multiply curved vanes. Available in Stainless steel 1.4571 (projection-welded, laser-welded) and Stainless steel 1.4408 (cast). Specific impeller sizes are listed with minimum and maximum diameters, outlet width, free passage, and balancing hole presence. See the official PDF for exact tabulated values.
• Maximum Permissible Speed:
  • For nominal impeller diameters 125, 160, 200 mm (sizes 050-025, 050-032, 065-040, 065-050, 080-065): 3600 rpm.
  • For nominal impeller diameter 250 mm (sizes 050-025, 050-032, 065-040, 065-050, 080-065): 3000 rpm.
  • For size 100-080, nominal impeller diameter 200 mm: 3000 rpm.
  • For size 100-080, nominal impeller diameter 250 mm: 1800 rpm.
• Axial Mass Moment of Inertia: See the official PDF for exact tabulated values.
• Liquid Fill of Pump: See the official PDF for exact tabulated values.
• Permissible Forces and Moments at the Pump Nozzles: See the official PDF for exact tabulated values.
• Noise Characteristics (Surface Sound Pressure Level LpA): See the official PDF for exact tabulated values. For 60 Hz operation, add +3 dB for 3500 rpm and +1 dB for 1750 rpm.

Additional Information

• Discharge Cover: Available with anti-swirl baffles for applications with erosion risk.
• Contact Guard: Coupling guard to ZN 79, made of sheet steel. A tread-proof version is available.
• Coupling: Flexible coupling, Design N (without spacer sleeve, ZN 3207) or Design N-H (with spacer sleeve, ZN 3208).
• Baseplates: Sectional steel (torsion-resistant) or cast iron to ZN 24259 (ISO 3661) for installation without foundation.
• Foundation Bolts:
  • 4 × M16 × 250 for baseplates made of sectional steel, width up to 400 mm.
  • 6 × M16 × 250 for baseplates made of folded sheet steel, width > 400 mm.

Dimensions and Weights

• Detailed dimensions and weights for bare-shaft pumps and pump sets are available. See the official PDF for exact tabulated values.

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Disclaimer: This summary is based on extracted text 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