This set-up is designed to conduct experiments on different types of chemical reactors on the same service unit. Three types of reactors i.e. Continuously Stirred Tank Reactor (CSTR), Plug Flow Tubular Reactor (Coiled Tube Type) and Batch Reactor will be will be supplied as separate units which can be installed on the service unit individually one at a time for conducting experiments. Basically this range of small-scale chemical reactors represents the most common types of chemical reactor found in industry. This common bench top service unit, which provides all the services for self contained operation for all three reactors. The fourth reactor, Stirred Tank Reactor in Series, is mounted on a dedicated unit. The reactors use the saponification reaction between ethyl acetate and sodium hydroxide. This provides a well-understood and safe reaction for the students to investigate the different reactor types.The series of three reactors is designed to fit interchangeably onto the common Chemical Reactors Service Unit. Each reactor is mounted on a base, which can be attached to the service unit. The appropriate services such as feed pumps, hot water circulator and instrumentation for conductivity and temperature measurement are connected to the reactor, and it then becomes operational. This service unit comprises feed tanks, feed pumps with variable speed drive, hot water circulator, automatic temperature controller and conductivity sensor and meter with computer output. These all things are mounted on a compact and well-designed base for bench mounting. This is self-contained bench top service unit to accommodate the all three reactors, one at a time, for conducting experiments on the same unit.