The HTS has no mechanical refrigeration but is fitted with a circulation pump and a plate heat exchanger. This compact circulator provides low-cost cooling with a stable pressure and flow to the application. As no mechanical refrigeration system is fitted (compressor etc.), the machine is silent, efficient and energy saving. It offers an economical alternative to standard circulators when a chilled water supply is already available. The HTS heat exchanger is suited for temperature control of bio reactors, condensers, rotary evaporators, vapour traps etc. and offers the following features: