Vapor Flow Control
Our unique and patented 'CEM' technology, which stands for Controlled Evaporation Mixing, is developed for accurate vapor flow control. Traditional bubbler systems are often not capable of handling sufficient quantities of liquid with a low vapour pressure, or perform in an imperfect way. Moreover, they cannot instantaneously provide vapor of a mixture of liquids with different vapor pressures. These issues are overcome with our vapor delivery solutions.
Bronkhorst's evaporation technology is fast, accurate, highly repeatable and efficient.
CEM-Technology: Controlled Evaporation Mixing
The CEM-System (Controlled Evaporation and Mixing) is an innovative Liquid Delivery System (LDS) that can be applied for atmospheric or vacuum processes. The vapor generation system consists of a (thermal or Coriolis) liquid flow controller, an MFC for carrier gas and a temperature controlled mixing and evaporation device. The system is suitable for mixing liquid flows of 1-1200 g/h resulting in saturated vapor flows of 50 mln/min up to 100 ln/min. This vaporizer system can replace bubblers. New opportunities created with the CEM-system: mixtures can be evaporated and even solids, dissolved in solvents can be vaporised successfully.
Features
Video Vapour Delivery Modules
In this video, we present our all-in-one solution for an accurately controlled vapour flow, providing fast response and high flexibility: The VDM-Series Vapour Delivery Modules.
VDM-Series: Vapour Delivery Modules
Based on the CEM-technology as described above, we designed a new series of Vapour Delivery Modules. These compact sub-systems incorporate the components of the CEM-System and more! Besides gas and liquid flow controllers and the temperature controlled evaporator, the VDM-Series feature integrated power supply with display (1.8” TFT) and control functions. As an option, the unit offers local or remote trace heating temperature control. The compact, ‘plug and work’ module can generate (saturated) vapour flows within the range of 100 mln/min up to 10 ln/min. It can be applied for atmospheric or vacuum processes and is capable of evaporating mixtures and even solids, dissolved in solvents.
Additional features (compared to separate CEM system components)
Vapour Control Applications
Application stories