Calio S

Summary

Product identification

The KSB Calio S is a high-efficiency circulator pump, available in standard Calio S and Calio S BMS (Building Management System) variants.

The designation key follows the format: Calio S [Nominal diameter]-[Head in m x 10]-[Overall length].

• Calio S: High-efficiency pump
• Nominal diameter:
  • 15 = R 1/2
  • 25 = R 1
  • 30 = R 1 1/4
• Head in m x 10: For example, 4 m head is represented as 40.
• Overall length: For example, 130 mm is represented as -130.
• BMS: Indicates Building Management System variant.

Main applications:

• Heating, ventilation, air-conditioning and circulation systems
• One-pipe and two-pipe systems
• Underfloor heating systems
• Boiler or primary circuits
• Storage tank circuits
• Solar power systems
• Heat pumps

Operating limits

• Flow rate (Q):
  • Calio S: ≤ 3.5 m³/h (≤ 1.0 l/s)
  • Calio S BMS: ≤ 7 m³/h (≤ 1.95 l/s)
• Head (H): ≤ 6 m
• Fluid temperature (T):
  • Calio S: 2 to 95 °C
  • Calio S BMS: -10 to +110 °C
  • Note: To prevent condensation, fluid temperature must always be equal to or higher than ambient temperature.
• Ambient temperature (T): 0 to 40 °C
• Operating pressure (p): ≤ 10 bar
• Sound pressure level: < 45 dB (A)

Minimum pressure (pmin) at pump suction nozzle (to avoid cavitation noises):

• Calio S:
  • Fluid temperature 5 to 75 °C: 0.05 bar
  • Fluid temperature 76 to 95 °C: 0.28 bar
• Calio S BMS:
  • Fluid temperature 5 to 80 °C: 0.5 bar
  • Fluid temperature 81 to 95 °C: 1.5 bar
• Note: Values are applicable up to 300 m above sea level. For installation at altitudes > 300 m, an allowance of 0.01 bar / 100 m must be added.

Feed water

Fluids handled:

• Heating water to VDI 2035
• Higher-viscosity fluids (e.g., water/glycol mixture up to mixing ratio of 1:1)
• Pure, thin, non-aggressive and non-explosive fluids not containing any mineral oil, solids or long fibres
• Fluids with a viscosity of max. 10 mm²/s

Electrical

• Drive: High-efficiency electric motor with continuously variable differential pressure control, electronically commutated synchronous motor with permanent magnet rotor.
• Voltage: 230 V - 50/60 Hz
• Thermal class: F
• Enclosure:
  • Calio S: IP42
  • Calio S BMS: IP44
• Temperature class:
  • Calio S: TF 95
  • Calio S BMS: TF 110
• Interference emission:
  • Calio S: EN 55014-1
  • Calio S BMS: EN 61 000-6-3
• Interference immunity:
  • Calio S: EN 55014-2
  • Calio S BMS: EN 61 000-6-2

Technical Data (Power and Current):

Mechanical / hydraulic

• Design: Highly efficient, maintenance-free wet rotor pump (glandless), screw-ended.
• Piping connection: R 1/2, R 1, R 1 1/4
• Pump connection: G 1, G 1 1/2, G 2
• Nominal pressure (PN): 10
• Bearings: Product-lubricated special plain bearing.

Materials:

Dimensions [mm]:

Weight [kg]:

Certifications

• Europe:
  • Calio S 15...-40 EEI ≤ 0.20
  • Calio S 15...-60 EEI ≤ 0.23
  • Calio S 25/30-60 BMS EEI ≤ 0.23
• Germany: All sizes

Scope of supply

• Pump
• Sealing elements
• Installation and operating manual
• Thermal insulation shells (for 180 mm overall length only)

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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 official OEM PDF datasheet. Contractual data must always match the specific OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror