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Circulators by KSB: Heating efficiently and saving power

Compared to old heating pumps, KSB’s state-of-the-art high-efficiency pumps work extremely efficiently and significantly lower the energy input.

Compared to old heating pumps, KSB’s state-of-the-art high-efficiency pumps work extremely efficiently and significantly lower the energy input.

Saving costs with high-efficiency pumps by KSB

Our state-of-the-art circulators are available in the most diverse of variants. Naturally, all our high-efficiency pumps meet the requirements of the ErP Directive regulations applicable since 2015.

Benefits of a circulator by KSB

  • Ease of use: Installation, commissioning and operation are simple and intuitive.
  • Maximum energy efficiency with high-efficiency drive and optimised hydraulic system, meeting the ErP requirements
  • Large product diversity: A wide range of closely-spaced sizes covers applications from single-family houses through to large objects with process control systems.
  • Versatility: Models with different load profiles for heating, ventilation and air-conditioning applications
  • Highest reliability: High quality and availability of pumps and service, individual service concepts and support with planning and implementing systems
  • Major savings: The installation of modern high-efficiency pumps and optimum setting of the heating circuit can lower your power costs by up to 80 percent.

Our circulators top seller

Calio circulators are ideal for single and multiple dwelling buildings

Calio

Calio

Maintenance-free high-efficiency flanged or screw-ended glandless pump with high-efficiency electric motor and continuously variable differential pressure control.

Calio S

Calio S

Maintenance-free high-efficiency screw-ended glandless pump with high-efficiency electric motor and continuously variable differential pressure control.

Calio Z

Calio Z

Maintenance-free high-efficiency flanged or screw-ended glandless pump in twin pump design with high-efficiency electric motor and continuously variable differential pressure control.

Calio-Therm

Calio-Therm

Maintenance-free high-efficiency variable speed glandless drinking water circulator pump, screw-ended or flanged, electric motor and continuously variable differential pressure control for use in drinking water supply systems and hot water supply systems.

Calio-Therm NC

Calio-Therm NC

Maintenance-free fixed speed glandless drinking water circulator pump, screw-ended, electric motor with multiple fixed speed levels, for use in drinking water supply systems and hot water supply systems.

Calio-Therm S

Calio-Therm S

Maintenance-free high-efficiency variable speed glandless drinking water circulator pump, screw-ended, electric motor and continuously variable differential pressure control for use in drinking water supply systems and hot water supply systems.

Calio-Therm S NC/NCV

Calio-Therm S NC/NCV

Maintenance-free high-efficiency glandless drinking water circulator pump, screw-ended, electric motor with multiple fixed speed levels, for use in drinking water supply systems.

Eta pumps for heating, ventilation and air-conditioning systems in complex buildings and systems

Etabloc

Etabloc

Single-stage close-coupled volute casing pump, with ratings to EN 733, with replaceable shaft sleeve and casing wear rings, with motor-mounted variable speed system. With KSB SuPremE, a magnetless synchronous reluctance motor (exception: motor sizes 0.55 kW / 0.75 kW with 1500 rpm are designed with permanent magnets) of efficiency class IE4/IE5 to IEC TS 60034-30-2:2016, for operation on a KSB PumpDrive 2 or KSB PumpDrive 2 Eco variable speed system without rotor position sensors. Motor mounting points in accordance with EN 50347, envelope dimensions in accordance with DIN V 42673 (07-2011). ATEX-compliant version available.

Etaline

Etaline

Single-stage volute casing pump in in-line design, with magnetless KSB SuPremE motor of efficiency class IE4/IE5 and PumpDrive variable speed system; pump shaft and motor shaft are rigidly connected. With KSB SuPremE, a magnetless synchronous reluctance motor (exception: motor sizes 0.55 kW / 0.75 kW with 1500 rpm are designed with permanent magnets) of efficiency class IE4/IE5 to IEC TS 60034-30-2:2016, for operation on a KSB PumpDrive 2 or KSB PumpDrive 2 Eco variable speed system without rotor position sensors. Motor mounting points in accordance with EN 50347, envelope dimensions in accordance with DIN V 42673 (07-2011). ATEX-compliant version available.

Etaline-R

Etaline-R

Vertical close-coupled pump with volute casing in in-line design with magnet-less KSB SuPremE motor (exception: motor sizes 0.55 kW / 0.75 kW with 1500 rpm are designed with permanent magnets) of efficiency class IE4/IE5 and PumpDrive variable speed system.

Etanorm

Etanorm

Horizontal volute casing pump, single-stage, with ratings and main dimensions to EN 733, long-coupled, back pull-out design, with replaceable shaft sleeves / shaft protecting sleeves and casing wear rings, with motor-mounted variable speed system. With KSB SuPremE, a magnetless synchronous reluctance motor (exception: motor sizes 0.55 kW / 0.75 kW with 1500 rpm are designed with permanent magnets) of efficiency class IE4/IE5 to IEC TS 60034-30-2:2016, for operation on a KSB PumpDrive 2 or KSB PumpDrive 2 Eco variable speed system without rotor position sensors. Motor mounting points in accordance with EN 50347, envelope dimensions in accordance with DIN V 42673 (07-2011). ATEX-compliant version available.

Circulators. Short explained.

This is how circulators work

An estimated 30 million pumps and more keep heaters going in German households. An ancient heating pump in a single-family house can be responsible for about one fifth of the household’s total power consumption. However, many home owners don't think about their circulators in the cellar when looking at their heating and power costs.

The heating pump (also called circulator) in a heating system is a centrifugal pump that circulates the heat transfer fluid through the piping in a closed circuit. It transports the hot heat transfer fluid to the heaters and returns it in cooled condition back to the boiler, where it is heated up again.
An old circulator consumes large amounts of power as it rarely adjusts to the actual heat demand and therefore always runs at maximum capacity.

What type of circulator have you got?

Fixed speed circulators do not allow for any settings to be adjusted. They always run at maximum capacity and therefore consume a lot of power.
 
Multi-level fixed speed circulators allow switching between three speed levels. At level 3 the power consumption markedly exceeds that of the lower levels. As this type of pump can only be either turned of or off, replacing it with a high-efficiency pump is recommended.
 
Circulators with an electronic control system adjust their operation automatically, depending on whether the radiator thermostats are open or closed. The pumps primarily run in the part load range and reduce power costs.

The high-efficiency pump is fitted with an optimised motor with variable speed system that adjusts the output to the actual demand. It is especially matched to the heating system it is used in and supports hydraulic balancing.

KSB circulators are versatile in use

For heating, air-conditioning and ventilation KSB offers suitable models of different sizes, designs and operating data. Whether in single-family houses or in large building complexes, our high-efficiency pumps provide a pleasant climate at all times.

Applications of KSB circulators:

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