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Peter Huber Kältemaschinenbau was established in 1968 by Peter Huber as one of the first enterprises specialised in the development and construction of temperature control systems. Today, Huber employs over 350 people at the headquarter in Offenburg, the 'Tango Factory'. In addition, international subsidiaries and trading partners provide a solid foundation for comprehensive support and services all over the world. 

Huber are technology leader for high precision thermoregulation solutions in research and industry. Their products ensure precise temperature control in laboratories, pilot plants and production processes throughout the whole world – from -125 °C to +425 °C.

National Lab GmbH has its headquarters in the town of Moelln in the state of Schleswig-Holstein and has been a purely German company independent of any corporation since its foundation in the year 1918. Due to the company’s distinct international orientation and its strong reputation in scientific laboratories around the world, it has now become standard practice to pronounce the name in English.
The company concentrates on two core fields of expertise: firstly, cooling water and oil recirculating water chillers for industrial applications and, secondly, refrigeration and deep-freezing technology on the laboratory scale.
National Lab recirculating water chillers are compact, ready-to-install units for cooling liquids within a circuit.
The liquid used is generally water with or without additives and is called a cooling medium on account of its function.
A recirculating chiller essentially consists of a hydraulic part (with heat exchanger, water tank and pump), which is intended to substitute a mains water circuit, and a cooling part.

Heat generated by machinery or equipment is transported via the hydraulic components by pumping the cooling medium through the applications to be cooled.
This method largely uses ambient air. The heat exchanger in the chiller is therefore a water/air heat exchanger.
The nature of the process means that the temperature of the cooling medium cannot be cooled below the temperature of the air.
In an active cooling unit the heat exchanger in the chiller is a refrigerant condenser.
Temperatures for the cooling medium of -10°C to +20°C can be achieved independently of the surroundings.
One feature applies for all cooling options, namely that, when matched with the hydraulic components, they represent a ready-to-install and fully equipped cooling unit. A cooling circuit is thus created without any loss of cooling medium. Apart from the fact that it conserves water resources, the main advantage of a recirculating chiller lies in the fact that constant conditions (temperature, pressure, etc.) are always present for the application to be cooled and there is no gradual impairment of the cooling properties by the permanent precipitation of minerals from fresh water.

Leading manufacturer for constant temperature equipment for laboratories and process. Temperature range: -95 to +400 °C.Stability ±0.002 to 0.5 °. Certificate for CE mark. Meet requirements of DIN 12876, DIN 12880, EN61010 and EN 61326-1..

Product line: Low and ultra-low refrigerated baths and circulators, Baths, Recirculating coolers, Refrigerated incubators, shaking incubators,Ovens, Chambers, Environmental temperature and humidity chambers, Dynamic temperature circulators..

Applications include: Petroleum chemicals, Pharmaceutical engineering, Medical treatment, Life science, Agriculture study, Food and light industrials, Electronic and electric, Metrological laboratories for detection, Calibration, Research and process control