Etaline Pro

Summary

Product identification

The KSB EtaLine Pro is a fully integrated in-line water pump, featuring a compact design with pump and drive unit. It is a close-coupled, single-stage pump suitable for horizontal or vertical installation, with a rigid connection between pump and motor, and available in a variable speed version.

Main applications:

• Service water supply systems
• Heating systems
• Industrial recirculation systems
• Air-conditioning systems
• Cooling circuits
• Water supply systems (Note: Not for drinking water in accordance with UBA regulations)

Operating limits

• Flow rate (Q): ≤ 63.6 m³/h (≤ 18 l/s)
• Head (H): ≤ 42.9 m
• Fluid temperature (T): ≥ -20 °C to ≤ +120 °C
• Operating pressure (p): ≤ 10 bar
• Test pressure: ≤ 15 bar
• In-service ambient temperature: 0 °C to +40 °C, Class 3K3
  • For fluid temperatures ≤ +90 °C: ambient temperature up to max. +40 °C
  • For fluid temperatures > +90 °C to 120 °C: ambient temperature up to max. +30 °C
• In-service relative humidity: < 95 %, non-condensing
• In-transport ambient temperature: -25 °C to +70 °C, Class 2K3
• In-transport relative humidity: < 95 %
• In-storage ambient temperature: -25 °C to +55 °C, Class 1K3
• In-storage relative humidity: < 95 %
• Installation altitude:
  • ≤ 1000 m above MSL
  • 1 % power derating per additional 100 m above 1000 m
  • Maximum installation altitude 2000 m above MSL
• Sound pressure level: ≤ 68 dBA

Feed water

The pump is designed for fluids not chemically or mechanically aggressive to the materials of construction. Overview of fluids handled:

• Service water
• Heating water (Treatment to VdTÜV 1466; additional requirement: O₂ t ≤ 0.02 mg/l)
• Condensate
• Cooling water without antifreeze (max. +60 °C)
• Cooling water with antifreeze, pH ≥ 7.5 (min. -20 °C, max. +110 °C)
  • The standard mechanical seal (BQ1EGG) is suitable for antifreeze agents on ethylene glycol basis (not inhibited) and pure glycols.
  • For applications involving inhibited ethylene glycol or propylene glycol, leakage may occur; an alternative pump type series with different mechanical seal material options is recommended.
• Pure water (max. +60 °C)

Electrical

• Drive: Surface-cooled synchronous motor (TEFC)
• Efficiency class: IE5 to IEC 60034-30
• Rated voltage of pump set: 3 ~380 - 400 V +/-10 %, 50/60 Hz
• Enclosure: IP55 (to EN 60529)
• Duty type: Continuous duty S1
• Thermal class: F
• Power supply (Mains):
  • Mains voltage: 380-480 V AC ±10 %
  • Voltage difference between the three phases: ±2 % of the supply voltage
  • Mains frequency: 50 - 60 Hz ± 2 %
  • Mains types: TN, TT and IT mains (to IEC/EN 60364)
• Internal power supply: 24 V DC
• Analog inputs: 2 (configurable for current input or voltage input)
  • Voltage input: 0/2...10 V
  • Current input: 0/4...20 mA
• Digital inputs: 2
• Relay outputs: 2× change-over contact
  • Maximum contact rating: AC: max. 250 VAC / 1 A; DC: max. 220 VDC / 1 A
• Service interface: Bluetooth Low Energy (BLE 4.2) integrated
• Power cable requirements:
  • Clamping range for M25 cable gland: 8 to 17 mm
  • Maximum core cross-section: 2.5 mm²
• Rated output power (examples): From 0.8 kW to 2.6 kW, with corresponding current inputs and weights. See the official PDF for exact tabulated values.

Mechanical / hydraulic

• Design: Radially split volute casing, in-line design.
• Shaft seal: KSB mechanical seal (BQ1EGG)
• Impeller type: Closed radial impeller
• Bearings: Radial ball bearings in the motor housing, grease lubrication
• Materials:
  • Volute casing: Grey cast iron EN-GJL 250 with cathodic E-coating
  • Casing cover: Grey cast iron EN-GJL 250 with cathodic E-coating
  • Impeller: PPS-GF40/1.4021
  • Joint ring: A4/AISI 316, DPAF
  • O-ring: EPDM
  • Mechanical seal: BQ1EGG
  • Vent valve: CUZN+GAL NI
  • Screw plug: A4/AISI 316
  • Hexagon nut: A4/AISI 316
  • Lock washers: ST+FLZNNC
  • Key: 1.4571+C/A276 TP 316 COND B
• Nominal diameter of suction and discharge nozzles: Sizes include 025 mm, 032 mm, 040 mm, 050 mm, 065 mm.
• Flange design:
  • DN 25: Screw-ended pump (G 1 1/2)
  • DN 32 - DN 65: Flanged pump, drilled to EN 1092-2, PN 6 / PN 10. See the official PDF for exact tabulated dimensions.
• Connection types:
  • Vent connection (5B): For mechanical seal chamber, plugged with vent plug on casing cover.
  • Fluid drain (6B): Drilled and closed on volute casing (G 1/4 for DN 32-65). Not available for DN25.
  • Fluid priming and venting (6D, 6D.1, 6D.2): Drilled and closed on volute casing (G 1/4 for DN 32-65). Not available for DN25.
• External sensors:
  • DN25 (screw-ended pump): No external sensors can be connected; a sensorless control system must always be used.
  • DN 32 to DN 65 (flanged pump): Holes for sensors are located on the side facing the motor in standard BT1 design. Alternative configurations are available.

Functions and Control

The EtaLine Pro offers a range of protective, operating, monitoring, and pump set functions.

Protective functions:

• Electronic motor protection
• Mains voltage monitoring
• Phase failure, motor side
• Short-circuit monitoring, motor side (phase to phase and phase to earth)
• Operating point estimation and characteristic curve control
• Detection of externally forced flow
• Deblocking function
• Adjustable parameters for service interval of pump and of motor bearings
• Broken wire detection
• Dry running protection and protection against hydraulic blockage

Operating modes:

• Open control loop: Constant Speed; Variable speed with external setpoint via analog input (0/2-10 V).
• Sensorless closed-loop control: Constant-pressure Control (∆p-const.); Proportional-pressure Control (∆p-var.); Dynamic Control (∆p-var.); Constant-flow-rate Control (Q).
• Closed control loop with external sensor: Constant-temperature Control; Constant-differential-temperature Control; Temperature-governed Differential Pressure Control (all via analog signals).

Operation and monitoring:

• Display of process values (head, flow rate, speed, electric power)
• Error codes indicated on the display
• Fault history
• Operating hours counter
• Energy meter
• Flow rate meter
• "In operation" message and general fault message via volt-free relays (changeover contact)

Pump set functions:

• Parameterless hydraulic process controller
• Adjustable start ramp and operating ramp
• Field-oriented control (vector control)
• External message via digital input
• Generation of test alert
• Flow rate estimation
• Functional check run
• Setback operation
• Heat quantity measurement via analog signal
• Dual-pump operation with redundancy or peak load function and integrated multiple pump management
• Automatic intelligent pump changeover in dual-pump operation
• Speed equaliser for dual-pump operation

Operation:

• Control element
• Bluetooth LE interface (Some functions can only be parameterized and/or displayed using the KSB FlowManager app or KSB ServiceTool.)

Accessories

A range of accessories is available for the EtaLine Pro, including:

• Blind flange with sealing element (DN25-DN65)
• Accessories set M12-Kit (for physically connecting pump sets in dual-pump operation)
• Terminating resistors (CAN for bus termination of multiple pump configuration)
• Pre-configured, shielded bus cables (various lengths from 1 m to 20 m)
• KIT ADDITIONAL MODULE MODBUS RTU ETLP/PD3 (for connecting to Modbus networks)
• M12 connector and socket for self-assembly (for Modbus, BACnet, Profibus)
• Bus cable CAN, BACnet and Modbus (cut to length)
• M12 terminating resistor for Profibus, Modbus and BACnet

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

Official datasheet (PDF)

Lenntech datasheet mirror