LEWA metering pumps and process diaphragm pumps are very well suited for supercritical processes, since they meet all the relevant requirements.
Advantages of LEWA pumps:
It must be noted that carbon dioxide must be in the liquid state to be pumped. This is not practical in the gaseous state due to its compressibility.
LEWA metering pumps and process diaphragm pumps have been successfully used in the following processes:
Principle of the PGSS process:
A supercritical fluid is a substance whose temperature and pressure are both over their critical point simultaneously (see diagram for CO2).
The critical temperature is the temperature over which the substance can no longer remain liquid, regardless of the pressure level.
Critical pressure is the pressure over which the substance can no longer form gas, regardless of the temperature.
Supercritical fluids have the density and good dissolving properties of fluids, as well as the viscosity, good compressibility, and diffusability of gases.
Due to their good mixing and mass transfer properties, they are classed as a fluid.
Important advantages of supercritical fluids:
Selection criteria for the right supercritical fluid:
The most frequently used supercritical fluid is CO2.
Properties of carbon dioxide:
Processes with strict quality and hygiene requirements, such as GMP or the need to avoid preservatives, require the right equipment. We support you in the selection and the design of hygienic components and systems for producing personal care products. Contact our experts and let us advise you – we will work with you to develop customized metering solutions for your process, such as for manufacturing personal care products.More Details
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LEWA ecoflow is the innovative and universal metering pump with DPS diaphragm protection system in a tried-and-tested modular system. Suitable for numerous applications, the ecoflow is our real all-around talent, relied on by customers from all industries.More Details
LEWA ecoflow is also available in sanitary/hygienic. The metering pump for hygienic applications has the same all-around capabilities and fulfills all specifications for pharmaceutical and food production.More Details
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Customer-specific batch/continuous systems for your production process. Metering, mixing, filling, separating, controlling temperature: We work with you to develop the ideal process-related sequence and produce the system that fits your production process – right up to the end product.More Details