Pressofiltro® Containment Devices

Depending on the degree of containment specified, passive or active, single chamber or multiple chamber isolators are required.

Passive isolators, used for less demanding containment requirements, are operated under ambient pressure and are vented to the exterior using HEPA filters.

Active isolators operate under a slight vacuum to prevent powder or gas exiting the containment. Air is extracted from the interior using a fan and double HEPA filters, with air or nitrogen purging through an inlet HEPA filter. The isolator interior pressure is monitored, the extraction rate is raised if a pressure drop indicates containment breach e.g. by a damaged glove. The HEPA exhaust filter differential pressure is also monitored to alarm the onset of filter blockage.

From the isolator product is discharged through a bag out port, continuous liner, active valve etc. into drums or other types of containers.

Side bag in / bag out ports or side RTP''s are provided to move items such as sample bottles, tools, etc. in and out of the isolator.

A wash gun permits cleaning the isolator interior, CIP spray balls may be installed additionally. Other accessories include a rake for heel removal, a glove port barrier to prevent the operator from reaching into the unit unless it is safe to do so, hinged front doors, interior lighting, etc.

All filter dryer and isolator functions are monitored and interlocked to assure the safe function and operation of the equipment.