All elastomer materials in the emptying systems of Hygienic Design are FDA-compliant. Furthermore, we work with stainless steel 1.4404 and 1.4571. The inner and outer surfaces of the stainless steel parts are polished. Surfaces in contact with the product have a surface roughness < 0.8 μm. It goes without saying that the GMP guidelines were implemented in the design of the progressive cavity pumps. They are designed to be hygienic and easy to clean and are available in protection class IP54 as a standard. Higher protection classes up to IP67 are available upon request.