CASE STUDY: AF 73 S – Chemical industry (MDI)


In the manufacturing process of MDI (methylene-diphenyl-isocyanate), a raw material for the production of polyurethane, the main task is to retain and separate any any agglomerates or foreign particles inside the fluid, which can cause imperfections or damage on products and machines.

To cope with the high reactivity with water and the low lubricating capacity of the isocyanate, an automatic metal-edge filter AF 73 S with special seals and bearings has been sized by Filtration Group, in order to avoid any unwanted effect.

The use of this filter allows a reduction in maintenance operations, obtaining as a main consequence a significant improvement in safety factors, limiting exposure to harmful elements.



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For over 30 years Lubropoint identified alternative industrial solutions dedicated to medium and large industries. To ensure customers the best products in the field of high-performance hybrid technologies and industrial filtrations Lubropoint studies the market carefully.