The experimental parametric investigation on a vapour condenser under vacuum conditions for the vacuum drying application has been presented. The mixture of air-vapour and the non-condensates are extracted from the system using a vacuum condenser. Hence, the vapour's behaviour inside a condenser becomes a subject of study exposed to different operating conditions. In the current study, parameters considered are condenser pressure (20 and 70 mbar), inlet valve orifice diameter (10 and 8 mm), and the cooling water flow rate through the pipes (32 lpm and 16 lpm). The condensation rate increases with the shell pressure and seems to remain unaffected by the chilling water flow rates. The turbulence in the steam flow increases with the increase in the shell pressure. The fluids flowing through tubes at low-velocity experience smaller pressure drops and show low heat transfer coefficients. The reproducibility and repeatability of the tests are excellent. © 2022 Informa UK Limited, trading as Taylor & Francis Group.