Process vacuum

Process vacuum

Leak testing

Many parts and systems must be airtight to operate correctly. Vacuum is a fairly common method of conducting leak tests. When vacuum is applied, any leaks are detected by small changes in pressure. Leak testing is typically performed both in the assembly of systems as well as in the manufacturing of parts/sub-components. Advantages with ...

Vacuum forming

During vacuum forming (thermo-forming), the ambient atmospheric pressure is used to form/press pre-heated plastic sheets over a mold. Air is rapidly evacuated from the mold by a vacuum pump and a vacuum tank will give extra initial power/flow. A deep end-vacuum is also needed to get the right "definition" on the finished ...

Evacuation and filling of liquids

In final assembly of certain machines/products like cars and refrigerators, fluid systems are filled before the machine/product leaves the manufacturing facility. To speed up the process of filling fluids the air is evacuated from the volume that is to be filled. A second vacuum is required that is applied at the end of the filling ...

Vacuum lamination/bagging (vacuum infusion)

During the manufacturing of laminated products like veneer sheets and plastic hull of a a boat, vacuum is used to eliminate bubbles and thereby increase the material strength. Advantages with Piab No service required on Piab vacuum pumps Energy-saving function can easily be incorporated Easy adjustable vacuum level Easy to ...

Vacuum packaging

Many food products including meats, poultry, coffee and produce are often packaged under vacuum in order to extend their shelf life. In Modified Atmosphere Packaging, MAP, a gas is introduced into a package to further modify the internal condition of the atmosphere and ensure even longer lasting, high quality food products. Also other ...

Vacuum for instrument calibration

Vacuum is used for simulation of different atmospheric pressures and different altitudes for instrument calibration. Advantages with Piab No service required on Piab vacuum pumps Easy adjustable vacuum level Easy to install

Vacuum drying

Removal of liquid from a solid material with the aid of vacuum. Drying with vacuum is often used when products are sensitive to heat (cause oxidation), to recover toxic material or if the final product has to be extremely dry. Advantages with Piab No service required on Piab vacuum pumps Easy adjustable vacuum level Easy to ...

Evacuation of molds

Vacuum is applied on mold cavities to give molded products a better definition. Advantages with Piab No service required on Piab vacuum pumps Low noise level Easy to install

Evaporation/crystallization

Vacuum is used to reduce the point of boiling so that an optimised temperature and pressure can be applied during evaporation or crystallization of liquids. Advantages with Piab No service required on Piab vacuum pumps Easy adjustable vacuum level Easy to install

Filtering of liquids

Vacuum is used to achieve a wider differential pressure of a filter material to get a more effective and faster filtration. Typically used in applications where liquids are separated from solids. Advantages with Piab No service required on Piab vacuum pumps Easy adjustable vacuum level Easy to install

Degassing

To achieve an effective degassing of oils and other liquids, vacuum is used. The largest possible surface area is exposed to vacuum. Advantages with Piab No service required on Piab vacuum pumps Easy adjustable vacuum level Easy to install

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