With a maximum pressure of 5MPa, it can measure the phase equilibrium parameters (T, P, x, y) of various pure substances or mixed systems (binary/ternary) within the temperature range of room temperature to 100℃

The VLE2000 High-Pressure Phase Equilibrium Tester is developed based on the static analysis method. It can test pressures up to 5MPa (higher pressures can be customized) and temperatures up to 100℃ (higher temperatures can be customized). The equipment uses mechanical stirring to achieve system equilibrium and is equipped with a high-precision micro-sampling system. Controlled by software, it can perform multiple rapid micro-samplings of gas and liquid phase components without disrupting the composition of the mixed system, and then connect to a chromatograph for injection analysis. The tester features high temperature measurement accuracy, a wide pressure measurement range, and precise measurements. Combined with independently developed programs, it can realize automatic temperature control, automatic pressure control, automatic sampling, and data analysis. It is applicable for testing vapor-liquid phase equilibrium of various pure substances and binary/ternary systems, and suitable for phase equilibrium tests of various fluids and mixtures such as refrigerants, lubricating oils, and aviation kerosene.

Key Features

l Wide pressure measurement range: 0.5~5 MPa, with higher pressures available upon customization;

l Accurate pressure measurement: Equipped with a high-precision pressure sensor, with a measurement accuracy of less than 0.04% FS (higher accuracy can be customized);

l High-temperature measurement: Suitable for phase equilibrium measurement within the range of room temperature to 100℃;

l High temperature control precision: Temperature fluctuation is less than ±0.05℃, ensuring experimental stability;

l Accurate temperature measurement: Temperature measurement accuracy reaches ±0.02℃, ensuring reliable temperature data;

l High degree of automation: Capable of automatic temperature control, automatic temperature measurement, automatic pressure measurement, and data processing;

Automatic sampling: Enables multiple high-precision quantitative sampling analyses with one injection, featuring short experimental time and stable results.