Polydisc/VacuGuard protection filters

For protecting vacuum pumps to prevent damage to the essential components in case of liquid backflow. The filter body is made from pure polypropylene and incorporates a PTFE membrane.

For protecting vacuum or pressure systems to reduce the risks of exposure to dangerous vapours.
0.2 µm PTFE membrane ensures >99.99 % retention of aerial particles with a size greater than or equal to 0.1 µm.
Media available:
• active carbon: very strong porosity for adsorbing the odours transported by gases and vapours;
• tri-molecular: crystalline aluminosilicate media for drying gases and retaining molecules up to 4 Å
• desiccant: anhydrous Calcium sulphate media impregnated with Calcium chloride. Inactive to most reagents other than water. Enables very fast drying thanks to a high adsorption yield. The media does not swell up, retract or disintegrate during use. The media changes from blue to pink when the capsule is saturated.

Capsule filled with acid-washed activated charcoal granules, and a pleated HEPA filter that retains 99.97 % of particles larger than 0.3 µm.