It consists of an autoclave laid upon a bath to be intered.
The bath is used for the preservative storing, the autoclave for the wood to treat laying on proper carriage.
During the operative phase the preservative passes from the storing bath to the autoclave which contains the timber and after having performed the impregnation, it comes back into its former container.
All the process is by automatic cycle.
The plants work by using a maximum vacuum of -730 mmHg. and hydraulic overpressure of 12 Atm. and then may perform impregnation cycles by full-cell, empty-cell or only at the pieces pheriphery.
It is the ideal plant for the treatments by preservative with salts dissolved in water.

A standard plant is made up of:

• An autoclave capable of resisting a vacuum of -700mmHg at a pressure of 12 atm.
• Storage tank for the impregnant.
• A small sized preparation tank for the impregnant .
• A vacuum pump.
• A high-pressure pump.
• An electric switchboard panel with a microprocessor, with the possibility of connecting it to a personal computer.
• Should the plants be "off the ground" the possibility exits for structuring the plant with an autoclave positioned higher acting as a storage tank for the solution.

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The reduced sizes compared to the productivity of these plants allow considerable savings in terms of space and they are easy to place inside the company.

The quality of the materials used in manufacturing the autoclave, such as stainless steel, guarantees long life against corrosion and the components have all been selected from leading Italian and foreign companies, giving a high level of reliability.
These characteristics, common to all ISVE plants are reflected in the high impregnation quality achieved in a short time and with very limited operating costs.