A Chiller Bath, also known as a Refrigerated Circulating Bath, is a sophisticated laboratory instrument designed to maintain a consistent and precise low-temperature environment for cooling samples, equipment, or reactions. It works by circulating a temperature-controlled fluid through a closed loop system, making it an essential component in various scientific, industrial, and quality control applications.

Chiller baths are typically used in processes that require cooling below ambient temperature. They feature a built-in refrigeration system that efficiently cools the circulating fluid, which is usually water or a water-glycol mixture. These units often come equipped with digital temperature controllers, over-temperature alarms, and advanced circulation systems to ensure uniform temperature distribution throughout the bath.

Modern chiller baths are highly reliable and are designed for both external and internal temperature control. The external circulation option allows the chiller to be connected to external devices like rotary evaporators, condensers, electrophoresis systems, or reactors to regulate their temperature during operation. Internal control, on the other hand, allows precise temperature maintenance within the bath itself.