Lyophilising is a process that freezes the drying material and sublimate the solvent under vacuum without any heating done. Materials like protein, amino acid, blood plasma, tissue and umbilical cord for stem cell are highly heat sensitive. Hence, vacuum is used to evacuate and dry the annular space present between the two layers of the cryogenic tanks. It is also used to leak check the cryogenic tanks/vessels once fabricated.

Small chamber where conical flask or material will be placed directly after frozen in the blast freezer. Vacuum pump will be connected to the refrigeration based cold trap. Since no heat is applied to the samples, vacuum pump is needed.

Vacuum: < 0.01 mbar

Drying involves removing the solvent from the solid matrix and was previously either done by heating the samples. Now vacuum technology helps to dry the materials at low temperature faster while retaining the aroma of the food or fragrance product. HHV Pumps has a dry pump solution for handling large quantity solvents and an oil sealed rotary vane pump for high vacuum drying for heat sensitive sample.

Vacuum: 1 to 10 mbar

Vacuum filtration is a procedure in a solid is filtered from liquid through a filter medium by evacuating the air below the filter paper. Vacuum helps in creating the pressure difference between atmosphere and the container. Solvent/sample is made to pass through filtration paper kept over the conical flasks. This is a quick method to filter the solvent out of the sample.

This process is widely used in laboratories, including various microbial tests in food, medicine, beverage, drinking water industry and many more.

Vacuum: 100 – 400 mbar

Drying involves removing the solvent from the solid matrix and was previously either done by heating the samples. Now vacuum technology helps to dry the materials at low temperature faster while retaining the aroma of the food or fragrance product. HHV Pumps has a dry pump solution for handling large quantity solvents and an oil sealed rotary vane pump for high vacuum drying for heat sensitive sample.

Vacuum: 0.01 mbar

Many large laboratory-based industries who setup research facility to study various drugs and components. For this, a general vacuum for centralised vacuum system is typically required. Purpose of this centralised vacuum ranges from vessel cleaning, filtration and sometimes drying. HHV Pumps has supported key industries for centralised vacuum requirement successfully for years.

Vacuum: 100 – 400 mbar