We are being more and more asked for NSF approval on o-rings and moulded parts - but we have difficulties in finding suppliers that have their compounds approved.
Does anyone know a good way to find compound that holds approval ?
We have been in contact with Rhodia and Shin-Etsu, but they dont...
We are often asked to improve on the diaphrammaterials used in for example Alfa Laval Saunders diaphramvalves.
Have anyone got experience in replacing the EPDM rubbers with other materials.
The problem is that the EPDM cracks/hardens - and they have to replace the diaphrams every 10 - 12 weeks...
Have heard from several sources, that new materials have to replace EPDM for milk fat lines in production.
The problem should be contamination.
Does anyone know more in detail what materials that could replace (a problem is also sterilisation at 141 degrees C).
Does anyone have links to people...
