Circulating Thermostats
Circulating thermostats for all of your lab's research needs are offered at Avantor. Closed circulator systems reduce water consumption, offering a green option with economic benefits. Cooling models offer shortened cool down times and compact design. Open circulator systems, such as heated or refrigerated circulating baths, feature precise temperature control in your choice of size. Immersion circulators afford the flexibility to create a bath in a vessel of your choice. Open bath models are also available.
Compatible control refrigerated circulators
Supplier: HUBER
These compact refrigerated circulators with insulated refrigeration baths are ideal for direct temperature control from −90 up to +200 °C. The low bath volume and high heating and cooling capacity means short heating and cooling rates, which can be increased by using the optional displacement inserts. Optional calibration inserts enable circulators to be used as calibration baths.
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Immersion cooling circulator, with natural refrigerant, Variostat
Supplier: HUBER
The Variostat can control the temperature of any size bath from −30 to 150 °C. The special construction gives the user flexibility in a number of different applications. With the infinitely controllable VPC pressure or suction pump, circulation in the respective bath sizes can be adapted for optimum results. Furthermore, the pump pressure for external applications can be set and controlled using the menu control with an optional pressure sensor. Insulated bath vessels are available in stainless steel as an accessory in three standard sizes or can be custom made with any desired dimensions.
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Cooling circulators, with natural refrigerant
Supplier: HUBER
These circulators, with insulated refrigeration baths, are designed for direct temperature control from −30 up to +200 °C.
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Immersion thermostats, KISS E
Supplier: HUBER
Immersion thermostats are suitable for controlling the temperature of any bath, includes screw clamp allows the thermostats to be easily mounted on any vessels. All models are fitted with a powerful pressure/suction pump. Temperatures down to −30 °C can be achieved in combination with a refrigerated bath. A pump adapter for external temperature control and cooling coils for a cooling water connection are available as optional accessories.
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Baths and circulators, with KISS® controller
Supplier: HUBER
Heating circulation bath thermostats with either polycarbonate or stainless steel baths, which are simple to use and are suitable for a variety of applications such as: Sample temperature control, analysis, materials testing or checking food. The units offer high temperature stability and are fitted with over-temperature and low level protection suitable for Safety Class III/FL (DIN 12876) for use with flammable fluids. A powerful pressure/suction pump ensures optimum circulation and temperature homogenity in the bath and also allows temperature control of externally attached applications using a pump adapter (accessory).
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Circulating cooling thermostats, Minichiller and Unichillers
Supplier: HUBER
Many applications depend on a reliable source of cooling. Circulating chillers in the Unichiller® range offer an ideal solution for environmentally friendly and economical cooling in laboratory and industry. There are over 50 air- and water-cooled models to choose from, with cooling powers from 0,3 to 50 kW. Efficient energy management ensures low operating costs and reduced usage of valuable fresh water. Huber circulating chillers are a resource saving solution which give a quick return on investment.
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Circulating chillers, Unichillers® P series
Supplier: HUBER
Unichillers® offer increased efficiency, stable pressure and delivery performance with a constant cooling water temperature compared to traditional tap water cooling.
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Immersion circulators, AC150
Supplier: THERMO ELECTRON LED
AC150 Immersion circulators are ideal for applications that require greater pumping performance with features such as ramp programming, application alarms and temperature ranges from −50 to 150 °C.
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Immersion Circulator, AC200
Supplier: THERMO ELECTRON LED
Thermo Scientific™ AC200 is ideal when applications require greater pumping performance, ramp programming, application alarms, and temperature ranges from 13 to 200 °C. Features include an enhanced digital display and easy-to-use touchpad settings, allowing you to easily tune the temperature to meet your specific application requirements.
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Heat exchanger and circulator packages
Supplier: HAAKE
SC100- A10 refrigerated bath circulator provides efficient cooling for open and closed applications, with temperatures ranging from −10 to +100°C and maximum bath volume of 6 litres.
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Circulator with Peltier thermostat, PT31
Supplier: A.KRÜSS Optronic
A versatile compact high-performance instrument with electronic Peltier thermostat that can be used for controlling refractometer and viscometer temperature.
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Circulating cooling thermostats, unichillers, with Pilot ONE E-grade "Basic" controller
Supplier: HUBER
Unichillers offer better efficiency, stable pressure and delivery performance with a constant cooling water temperature compared to traditional tap water cooling. Chillers also reduce water consumption and help conserve the environment whilst lowering operating costs.
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Cooling circulators, with natural refrigerant, with KISS® controller
Supplier: HUBER
These circulators with insulated refrigeration baths are designed for direct temperature control from −20 to +200 °C. The units are suitable for a number of typical heating and cooling tasks such as sample temperature control, materials testing, quality control and analyses.
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Immersion thermostats
Supplier: THERMO ELECTRON LED
Designed for ease-of-use and to be energy efficient with powerful pumping and heating capacities for closed loop applications.
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Recirculating chillers, F-100 / F-108 / F-114 / F-125
Supplier: BUCHI
The F-series chillers provide the final step to a fully integrated evaporation or distillation process, leading to several key benefits:
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Circulators, NE4 series, Clifton
Supplier: NICKEL ELECTRO
These circulating water baths are available in two ranges for circulating just water up to 99 °C or oil up to 130 °C. Operating temperatures below ambient can be achieved using an optional refrigerated dip cooler. Units have touch pad controls with easy wipe clean fronts which are chemical resistant and splash proof.



