Description
Circulating thermostat PT31 is a laboratory circulating thermostat intended for tempering applications in the range 8–35 °C. The unit is specified as a model for controlled temperature circulation within this moderate working window, supporting routine laboratory tempering tasks where a stable circulating medium is required. Pack size is 1 pc, with a net weight of 1,35 kg and a gross weight of 3 kg, making the instrument practical for individual benchtop installation and handling. The PT31 circulating thermostat from manufacturer Krüss addresses temperature-control needs that fall between 8 and 35 °C without extending beyond that defined range. Country of origin is Germany. In laboratory environments that rely on circulating thermostats for sample conditioning, instrument tempering, or process media control, the PT31 provides a clearly bounded operating interval suited to those moderate temperatures. Its classification among general laboratory materials reflects use as dedicated temperature-control hardware rather than a multi-range industrial chiller. Laboratories specifying a circulating thermostat for the 8–35 °C tempering band can match the PT31 to that requirement on the basis of the stated model data and pack presentation.
This article is part of Circulators, chillers & thermostats, in Heating, drying & cooling.
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Questions about PT31 circulation thermostat
What is this article?
PT31 circulation thermostat is the article on this page. Luminix Health distributes Krüss for laboratory use. It sits in Circulators, chillers & thermostats, inside Heating, drying & cooling, in Instruments de précision.
A circulator or thermostat holds a bath liquid at a set temperature and pumps it through a jacket. A chiller is the same idea aimed below ambient. The temperature range, the cooling power and the pump flow are the three numbers. The fluid has to match the range.
Temperature equipment either holds a set point or drives a sample toward one. An oven dries. A furnace reaches the temperatures of ashing and melting. A bath surrounds a vessel with water or oil. A circulator moves that fluid. An incubator holds the mild warmth of a culture. An autoclave uses steam under pressure to sterilise. The number that matters is the temperature the article actually reaches, not the number painted on the dial. Temperature is part of the international system kept by the BIPM and compared by EURAMET.
Which category should I open next?
The category is Heating, drying & cooling. The sub-category is Circulators, chillers & thermostats. The catalogue is Instruments de précision.
Shelves beside this one are Muffle & tube furnaces, Heating mantles, Drying ovens & climate chambers, Water & oil baths, Hot plates & heating blocks, Incubators, Heating & cooling (other), Temperature control accessories, Laboratory refrigerators & freezers, Autoclaves & sterilisers, Bunsen & gas burners and Heating tapes, cables & plates.
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When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

