Etaseco

Summary

Product identification

The KSB Etaseco/Etaseco-I are standardised water pumps featuring a sealless, fully enclosed canned motor.

Design variants:

• Etaseco: Horizontal/vertical volute casing pump in backpull-out design, with a radial impeller, single-stage, single-entry. Connection dimensions of the pump casing comply with EN 733.
• Etaseco-I: Inline pump in back pull-out design, with a radial impeller, single-stage, single-entry.

Fields of Application: For handling aggressive, inflammable, toxic, volatile, or valuable liquids in the chemical and petrochemical industries, as well as in environmental and industrial engineering. Etaseco is also suitable for applications requiring low noise emissions, particularly smooth running, or long service intervals (operating reliability).

Designation example: Etaseco G - I 32 - 200 / 7 2

• Etaseco: Type series (short designation: ESO)
• G: Material of pump casing
• - I: Nozzle positions on pump casing (180° for inline, suction and discharge nozzle in opposite position; without letter: 90° for axial suction nozzle, radial discharge nozzle)
• 32: Discharge nozzle DN
• 200: Nominal impeller diameter in mm
• 7: Motor rating in kW (rounded off to full kW)
• 2: Number of poles of the motor

Operating limits

• Capacities (Q): Up to 250 m³/h
• Heads (H): Up to 100 m
• Motor ratings (P₂): From 1.4 to 18 kW
• Product temperature (t): -40 to 140 °C
• Maximum operating pressure: 16 bar
• Maximum test pressure: 1.5 x max. permissible pump discharge pressure
  • Note: The sum of inlet pressure and head at zero flow point must not exceed 16 bar.

Feed water / Product water

General criteria for water analysis:

• pH value ≥ 6.5
• Chloride (Cl⁻) content ≤ 150 mg/kg
• Chlorine (Cl₂) content ≤ 0.6 mg/kg
• For heating water: conductivity at 25 °C < 250 µS/cm; SiO₂ (silicate) content ≤ 10 mg/l.
• Carbon bearings can only be used for products with a low solids content (< 20 ppm) and low particle hardness (Mohs’ hardness ≤ 4).

Compatible pumped products (with maximum content and temperature limits where specified):

• Alkaline cleaning agents (30%, 30 °C)
• Ammonia water (25%, 30 °C)
• Bottle rinsing lyes (50%, 30 °C)
• Castor oil (not food-approved)
• Caustic soda / Sodium hydroxide (29%, 30 °C)
• Cider
• Corn oil (not food-approved)
• Cutting oil
• Edible oil (not food-approved)
• Glycol-water mixture
• Hydraulic oil
• Linseed oil
• Lubricating oil
• Metal cleaning lyes (pH ≥ 12, 50%, 30 °C)
• Mineral oil
• Oil-water emulsion
• Peanut oil (not food-approved)
• Potassium bicarbonate (10%, 20 °C)
• Potassium carbonate (50%, 30 °C)
• Potassium hydroxide (29%, 30 °C)
• Rape oil (not food-approved)
• Safety refrigerants (water-free, e.g., Frigen, Freons)
• Silicone oil
• Sodium bicarbonate (10%, 20 °C)
• Sodium carbonate (10%, 30 °C)
• Sodium hydroxide / caustic soda (29%, 30 °C)
• Sodium nitrate (40%, 30 °C)
• Soybean oil (not food-approved)
• Turbine oil (not SFD oils, not combustible)
• Vaseline
• Vegetable oils (pure, not food-approved)
• Water:
  • Bath water (40 °C)
  • Boiler water
  • Cooling water (40 °C)
  • Dam water (25 °C)
  • Drinking water (40 °C)
  • Fire-fighting water (25 °C)
  • Heating water (30 °C)
  • Partly desalinated water (40 °C)
  • Pure water (40 °C)
  • Pure water with 10% soda (30 °C)
  • Raw water (40 °C)
  • Rinsing water (40 °C)
  • Slightly contaminated water (25 °C)

Electrical

Drive:

• Three-phase, asynchronous canned motor
• Enclosure: IP 55
• Thermal motor protection: By means of PTC thermistors (standard pump design)
• Motor design: In accordance with IEC 60 034 (DIN VDE 0530)
• Operating mode to DIN VDE 0530: S1
• Starting method: Direct-on-line (d.o.l.) for all motors; for 400 V Y/Δ starting is possible for motors 42 to 152.
• Voltages:
  • 50 Hz: 400 V, 500 V; from motor 42 upwards, 690 V is also possible.
  • 60 Hz: 480 V, 600 V.
• Admissible voltage tolerance: +10%
• Thermal class: H
• Monitoring: PTC thermistors in standard pump design; temperature in the rotor chamber can be monitored by means of PT 100 on the support sleeve.

Motor Data for 2-pole Motors: A detailed table is provided in the official PDF, listing operating data at rated power for various motor sizes (code 12 to 152) and product temperatures (40 °C, 70 °C, 100 °C, 140 °C). This includes rated current, speed, rated power (P₂ from 1.1 kW to 18.5 kW), efficiency, power factor (cos φ), rated torque, starting current, starting torque, pull-out torque, moment of inertia, and complete drive weight (from 35 kg to 85 kg). See the official PDF for exact tabulated values.

Noise Characteristics: Surface sound pressure level pA (measured at 1 m from pump outline to DIN 45635, Parts 1 and 24) ranges from 48.5 dB to 60 dB depending on motor size. See the official PDF for exact tabulated values.

Electrical connections:

• Terminal box version KV.1: PG 21 (for motor sizes 12/22), PG 29 (for motor sizes 42/52/72/112/152) for power cable.
• Terminal box version KV.2: PG 11 for auxiliary cable.
• Terminal box version KV.3: PG 16 (for motor sizes 12/22), PG 21 (for DS 112) for variant free cable end.

Automation products available:

• PumpExpert
• Hyamaster
• hyatronic

Accessories available:

• PTC tripping unit: Protects and monitors motors equipped with thermistors (PTCs) by measuring temperature rise in stator windings. Monitors sluggish starting, high switching frequency, single-phase operation, high ambient temperature, and insufficient cooling.
• Pump performance control unit (motor load control unit): Monitors effective power consumption of the motor. Features adjustable maximum/minimum power limits, trip delay (1-10 s), and start-up delay (1-30 s). Requires a current transformer for rated motor currents above 5 A.
• Motor standstill heater: Applies a lowered heating voltage to the motor winding to heat the liquid in the rotor chamber. Liquid temperature can be set via a PT 100 sensor. Prevents motor shaft rotation during operation.

Mechanical / hydraulic

Materials:

• Volute casing: JL 1040 (to EN 1561 = GJL-250) or JS 1025 (to EN 1563 = GJS-400-18-LT).
• Casing cover: JL 1040 (to EN 1561 = GJL-250) or JS 1025 (to EN 1563 = GJS-400-18-LT).
• Impeller: JL 1040 (to EN 1561 = GJL-250) or JS 1025 (to EN 1563 = GJS-400-18-LT).
• Bearing bracket lantern: JL 1040 (to EN 1561 = GJL-250) or JS 1025 (to EN 1563 = GJS-400-18-LT).
• O-ring: FPM (admissible up to -30 °C only) or EPDM (admissible up to -40 °C, also available in FPM).
• Bearing sleeve: Sicadur (SiC).
• Bearing bush: Sicadur (SiC).
• Casing can: St 35.8 or 2.4610.
• Shaft: 1.4021.
• Bearing pairing: 1.4462/carbon upon request.

Pump connections:

• Pressure gauge connection (1 M, 1 M.1/.2): Rc 3/8 or G 3/8 (for G/S variant); Rc 3/8 or Rc 1/2 (for G-I/S-I variant).
• Casing drain (6 B, 6 B.1/.2/.3): Rc 3/8 or G 3/8 (for G/S variant); Rc 3/8 or Rc 1/2 (for G-I/S-I variant).
• Casing - priming and venting (6 D, 6 D.1/.2): Rc 3/8 or G 3/8 (for G/S variant); Rc 3/8 or Rc 1/2 (for G-I/S-I variant).
  • Note: Rc = ISO 7/1, G = ISO 228/1.

Motor connections:

• Motor drain (6 B.4): G 3/8.
• Barrier fluid inlet (10 E): G 1/4.
• Flushing liquid inlet (11 E): G 3/8.
• Flushing liquid inlet or sealing liquid inlet (11 E.3): G 1/4.

Dimensions and Weights: Detailed dimensions (in mm) and approximate total weights (in kg) are provided for Etaseco (G/S variant), Etaseco G-I, and Etaseco S-I pump sizes and motor sizes. See the official PDF for exact tabulated values.

Accessories available:

• Main flow filter: Can be installed between the pump discharge nozzle and plant pipeline. A partial flow is tapped for motor cooling and bearing lubrication, routed through a strainer (0.08 x 2 mm longitudinal slots) to minimise solids in the rotor chamber. Self-cleaning design.
• Sealing liquid connection (10 E): For solids-laden products, connection 10 E can be fed with filtered pumped product or an external sealing liquid to prevent contamination of the rotor chamber.

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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