Etanorm SYT

Summary

Product identification

The KSB Etanorm SYT is a series of centrifugal pumps with shaft seals, designed for handling thermal oil and hot water. These pumps are available in both fixed speed and variable speed versions, operating at 50 Hz or 60 Hz, and are intended for markets in Europe (EU), Middle East (ME), and North Africa (NA).

Key design features include:

• Volute casing pump
• Horizontal installation
• Back pull-out design
• Single-stage
• Dimensions and ratings to EN 733

Operating limits

The Etanorm SYT pumps are designed for the following operating properties in standard applications:

• Flow rate (Q):
  • ≤ 625 m³/h (50 Hz)
  • ≤ 754 m³/h (60 Hz)
• Head (H):
  • ≤ 102 m (50 Hz)
  • ≤ 100 m (60 Hz)
• Fluid temperature (T):
  • Thermal oil: ≥ -30 °C to ≤ +350 °C
  • Hot water: ≤ +180 °C
• Operating pressure (p): ≤ 16 bar

Test Pressure Limits:

• For material S (Nodular cast iron JS1030 / 536 Gr. 60-40-18):
  • Fluid temperature: -30 to +350 °C
  • Test pressure: ≤ 25 bar

A pressure/temperature correlation chart for flanges (material S, to EN 1092-2 and ASME 125) is available in the official PDF.

Feed water

The pumps are suitable for handling:

• Hot water
• Thermal oil

Further information on fluids handled:

• High-temperature hot water:
  • Application limits: t ≤ 180 °C, p ≤ 16 bar
  • Requires low-salt or fully desalinated water to VdTÜV technical instruction leaflet / AGFW technical instruction leaflet TCN 1466 (VdTÜV) 5/15 (AGFW), edition 02.89.
• Water/glycol mixture:
  • Application limits: t ≤ 180 °C, p ≤ 16 bar
• Thermal oil on mineral oil basis:
  • Application limits: t ≥ -30 to 350 °C, p ≤ 16 bar
• Thermal oil on synthetic basis (vapour pressure ≤ 1 bar at operating temperature):
  • Application limits: t ≥ -30 to 350 °C, p ≤ 16 bar
• Thermal oil on synthetic basis (vapour pressure ≥ 1 bar at operating temperature):
  • Application limits: t ≥ -30 to 350 °C, p ≤ 16 bar

The inlet pressure must not fall below atmospheric pressure.

Electrical

Fixed Speed Version Drive (Standard Design):

• KSB/Innomotics surface-cooled IEC three-phase current 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 (≤ 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 B3
• Enclosure: IP55
• Duty type: continuous duty S1
• Thermal class: F with temperature sensor

Variable Speed Version Drive (KSB SuPremE Motor):

• Surface-cooled KSB SuPremE motor, 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: 50 Hz / 60 Hz (PumpDrive input)
• Voltage: 380 V to 480 V (PumpDrive input)

PumpDrive 2 / PumpDrive 2 Eco:

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

PumpDrive R:

• Mains voltage: 3~ 380 V AC -10 % to 480 V AC +10 %
• Mains frequency: 50 Hz to 60 Hz ± 2 %
• Extended power range: 110 kW (standard) or 1400 kW (on request)

Dimensions and weights for PumpDrive 2 are available in the official PDF.

Mechanical / hydraulic

Pump Casing:

• Radially split volute casing
• Volute casing with integrally cast pump feet
• Replaceable casing wear rings

Shaft Seal:

• KSB single mechanical seal
• KSB double mechanical seal
• To EN 12756

Impeller Type:

• Closed radial impeller with multiply curved vanes

Bearings:

• Pump end: Carbon bearing or SiC/SiC bearing, lubricated by the fluid handled.
• Drive end: Grease-packed deep groove ball bearing (DIN 625).

Materials:

• Volute casing: Nodular cast iron JS1030 / 536 Gr. 60-40-18
• Casing cover: Nodular cast iron JS1030 / A536 Gr. 60-40-18
• Shaft: Chrome steel 1.4021 + QTHRC50
• Impeller:
  • Grey cast iron JL1040 / A 48 Cl. 35B (for SG material variant)
  • Stainless steel 1.4408 / A743 Gr. CF8M (for SC material variant)
• Plain bearing: Carbon KHK or SiC / SiC
• Bearing bracket: Nodular cast iron JS1030 / A536 Gr. 60-40-18

Technical Data: The official PDF contains a detailed table of technical data for various pump sizes, including shaft unit, nominal inlet and outlet diameters, maximum and minimum impeller diameters, and speed limits (e.g., max. 3600 rpm to 4400 rpm, min. 800 rpm). See the official PDF for exact tabulated values.

Dimensions and Connections:

• Dimensions of the bare-shaft pump (Fig. 0) are provided in a detailed table in the official PDF, with dimensions to EN 733.
• Connections at the volute casing and bearing bracket include G 1/4, G 3/8, G 1/2, and M8 threads, depending on the pump size.
• Flange designs are available to EN 1092-2 PN 16 and ASME B 16.1 Class 125 standards. Detailed flange dimensions (e.g., pitch circle diameter, outside diameter, number and diameter of holes) are tabulated in the official PDF.

Scope of Supply: Depending on the model, the scope of supply may include the pump, baseplate, coupling, coupling guard, drive, quench pot with pipework (optional), and special accessories as required.

---

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