In the field of gas-liquid phase equilibrium (VLE) experimental research, the static method has long held an important application position due to intuitive principle and direct data acquisition. However, traditional early static method experimental systems have shortcomings such as long equilibrium cycles and easy introduction of errors during sampling operations.

Based on the static method, XIATECH has successfully developed the VLE2000 Series Gas-Liquid Phase Equilibrium Tester. The device integrates a high-efficiency stirring device which significantly accelerates the heat exchange efficiency between gas and liquid phases and greatly shortens the equilibrium time. It also has a built-in micro-volume rapid online sampler, enabling automatic sampling of gas and liquid phase components. This fundamentally avoids the interference of manual sampling on the equilibrium state, reduces errors caused by fluctuations in sampling volume, and effectively improves experimental efficiency and data reliability.

Building on the inherent technical advantages of the static method "simple structure, strong high-pressure resistance, and excellent sealing performance"，the VLE2000 Series fully inherits these strengths. Through technological innovation, it further achieves comprehensive improvements in measurement accuracy, experimental efficiency, and operational stability. It demonstrates outstanding adaptability especially in phase equilibrium research under harsh working conditions such as high pressure, high temperature, and ultra-low temperature, capable of testing phase equilibrium within the high-temperature range of 200℃ and ultra-low temperature range of -160℃. The standard pressure is 0~5MPa, and a customized pressure condition of 20MPa is also available. To adapt to more complex and demanding experimental conditions, both temperature and pressure ranges can be customized according to user requirements.