Pharmaceutical and food process lines
which are required to operate at the
highest hygiene levels, use pure, high
temperature aggressive water (WFI)
systems for their SIP (Steam in Place)
and CIP (Clean in Place) processes.
The operation of repeated steam
recycling places severe demands upon
any sealing products incorporated
within control valves used in the
process pipework.

These valves are widely used to
control flow, pressure and
temperature of fluid media within the
system. Dichtomatik, an official
Dupont licensee, is able to supply the
Kalrez 6221 perfluorelastomer
compound O-rings and other sealing
profiles including custom shapes.

These products are thermally stable
up to 260°C, and suitable for stage II
sterilisation application processes
where other elastomers can lose their
sealing capabilities.