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The BP-5B Circulating Heating and Cooling Bath delivers the widest temperature range in a compact 4.5L laboratory circulating bath — spanning from -40°C through to 150°C with ±0.2°C precision, driven by a built-in circulation pump providing 8 L/min flow for stable temperature distribution throughout the bath volume and connected external systems. At 3150W, the BP-5B's combined cooling and heating capability covers the full range of laboratory temperature control requirements — from sub-zero chemical process cooling and cryogenic assay temperature maintenance through to high-temperature synthesis, distillation jacket heating, and thermal testing applications at up to 150°C. With its compact design, reliable control system, and external circulation capability, the BP-5B is the precision temperature control platform for chemical, pharmaceutical, and research laboratory applications requiring the widest available temperature range in a bench-mounted circulating bath format. Enquire about the BP-5B today.
The BP-5B Circulating Heating Cooling Bath delivers the widest temperature range in the BP Series — from -40°C to 150°C at ±0.2°C precision — combining a built-in 8 L/min circulation pump, compact 4.5L stainless steel design, and external circulation capability for versatile laboratory temperature control, chemical processing, and pharmaceutical applications.
The BP-5B covers a temperature span of 190°C — from -40°C deep sub-zero cooling through +150°C high-temperature operation — in a single compact 4.5L circulating bath. This extraordinary range makes the BP-5B the most versatile model in the BP Series, enabling a single instrument to serve applications as different as low-temperature crystallisation at -40°C, standard room-temperature incubation at 25°C, physiological temperature control at 37°C, and high-temperature solvent distillation jacket heating at 150°C — without the need for separate heating and cooling instruments for different temperature protocols.
The BP-5B maintains temperature precision of ±0.2°C throughout its operating range — a level of temperature accuracy that satisfies the most demanding chemical process temperature control, pharmaceutical sample conditioning, and analytical calibration applications. At ±0.2°C precision, the BP-5B provides the temperature stability required for calorimetric measurements, viscosity determination at defined temperatures, chemical synthesis at temperature-sensitive rate conditions, and biological material conditioning where temperature accuracy directly affects the quality of the experimental outcome.
The BP-5B's built-in circulation pump delivers 8 L/min flow rate through the bath and connected external tubing — providing active temperature-controlled fluid circulation to external systems including reaction vessel jackets, analytical instrument temperature control inputs, rheometer sample stages, and other laboratory equipment requiring externally circulated temperature-controlled fluid. The 8 L/min flow rate ensures sufficient convective mixing within the 4.5L bath volume to maintain temperature uniformity throughout, and provides adequate flow to external systems for effective heat transfer at the point of use.
The BP-5B is designed as a compact bench-mounted circulating bath — with a liquid tank opening of 150 × 160 mm and a 150 mm tank depth. This compact format makes the BP-5B practical for placement on standard laboratory benches alongside the analytical instruments and chemical process equipment it serves, minimising the total bench footprint of temperature-controlled laboratory setups. The compact design does not compromise performance — the BP-5B maintains ±0.2°C precision and -40°C to 150°C range in a bench-friendly format.
The BP-5B's built-in pump enables external circulation — connecting the bath to external systems via inlet and outlet tubing to circulate temperature-controlled bath fluid through jacketed reaction vessels, column jackets, flow-through cells, and other laboratory equipment requiring external temperature control. External circulation allows the BP-5B to simultaneously control the temperature of external equipment while maintaining the bath itself at the setpoint — making it the central temperature control hub for multi-component laboratory temperature control setups.
The BP-5B Circulating Heating Cooling Bath incorporates over-temperature protection, a stable and reliable control system, and safe electrical operation — providing secure temperature control for chemical, pharmaceutical, and research laboratory applications across its full -40°C to 150°C operating range.
The BP-5B's over-temperature protection system monitors bath fluid temperature and activates protective shutdown of the heating system if the temperature exceeds the safe upper limit — independently of the primary temperature control circuit. At temperatures up to 150°C, over-temperature events in the bath fluid represent a significant risk from thermal degradation of heat transfer fluid, damage to connected external equipment, and potential fire risk from overheated surfaces in contact with chemical solvents or reagents. The independent protection circuit provides the critical safety backstop that makes the BP-5B safe for unattended temperature control operations across its full range.
The BP-5B's control system provides stable, predictable temperature control across the full -40°C to 150°C range through continuous monitoring of bath fluid temperature and active correction of deviations via the heating and cooling systems. Stable operation is a safety requirement as well as a performance specification — temperature instability in a circulating bath supplying temperature-controlled fluid to external chemical or pharmaceutical process equipment can cause unintended reactions, process deviations, or equipment damage in the connected systems. The reliable control system ensures consistent, predictable temperature delivery throughout extended laboratory operations.
The BP-5B is designed for safe electrical operation at 3150W — incorporating standard electrical protection measures appropriate for a high-power laboratory heating and cooling instrument. Safe electrical operation provisions include appropriate circuit protection for the 3150W load, insulated electrical connections rated for the operating temperatures and chemical environments typical of circulating bath laboratory settings, and a control system design that maintains safe electrical operation across the full temperature range — including at the high-temperature end (150°C) where thermal stress on electrical components is greatest.
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