For controlling sterilization cycle, a three way valve or a multiport valve made of stainless steel is used for controlling sterilization cycle effectively. The pressure inside the chamber is variable from 5 to 30 psi. For completely safe operation of the unit, it is supplied equipping with vacuum breaker, water level indicator, steam trap and automatic pressure control switch. The whole unit of horizontal autoclave is mounted on a robust tubular stand. Power supply required to run this autoclave is 3 phase 440 Volts, on request single phase operation can also be designed.